About the journal
The Journal of Environmental Research and Technology is a scientific journal of Academic Center for Education Culture and Research, Environmental Research Institute (ACECR). The journal was first started in 2004 with the permission of the Ministry of Culture and Islamic Guidance. Then its name was changed from 2015 and currently, it continues to operate under the title of "Environmental Research and Technology" and investigates scientific articles in various environmental fields for acceptance and publication. Also, the Environmental Research Institute has signed a cooperation memorandum with the Iranian Environmental Assessment Association in 2022. In 2023, this journal received its ISC license from Islamic World Science Citation Center.
Recent Articles
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Open Access Article
1 - Investigating the effect of soil conditioners on the germination rate and percentage of Fraxinus excelsior seeds
Hamed Asadi salime rahimnezhad Seyed Mohammad Hojjati Hameid jalilvand Mojtaba MahmoudiIssue 13 , Vol. 8 , Spring_Summer 2023Different fertilizers such as green, animal, chemical, biological and biochar are used in different nurseries to improve germination and growth. The purpose of this research is to investigate the effect of soil conditioners on the germination rate and percentage of Frax MoreDifferent fertilizers such as green, animal, chemical, biological and biochar are used in different nurseries to improve germination and growth. The purpose of this research is to investigate the effect of soil conditioners on the germination rate and percentage of Fraxinus excelsior seeds in forest nurseries. This experiment was carried out in Nursery Lajim, located in Sarjangalbani Kaslian, General Department of Natural Resources and Watershed of Swadkoh city. In this research, 20 soil conditioning treatments include rice husk to amount of 0.5% and 1% of soil volume, rice husk biochar to amount of 0.5%, 1% and 2% of soil volume, 150 and 300 grams of cow manure, minimum and maximum chemical fertilizer (minimum chemical fertilizer for super triple phosphate 0.6 grams, for ammonium sulfate 0.45 grams and potassium sulfate 0.45 grams and chemical fertilizer for triple superphosphate 1.2 grams, for ammonium sulfate 0.9 grams and potassium sulfate 0.9 grams) and the control treatment was considered with three repetitions. The seeds selected for the experiment were cultivated in the appropriate soil depth, by observing the first young seed on the 10th of April, counting of seeds has started. The quality of seed germination was leaf emergence. For statistical analysis, after checking the normality of the data and the homogeneity of variances using the Shapiro Wilk and Loon tests at the 95% probability level, one-way analysis of variance was used. If the data were significant, comparisons were made using Duncan's test. The results showed that the effect of soil conditioners on the speed and percentage of seed germination has a significant effect. The highest germination rate and percentage were observed in the treatments of 1.25% cow manure and 1% rice husk, 1% maximum chemical fertilizer and rice husk, 2% rice husk biochar and 1% rice husk biochar, and in general, the use of these materials had the greatest effect on seed Fraxinus excelsior. it is suggested to use organic materials such as rice husk and cow dung to increase the germination of Fraxinus excelsior seeds in forest nurseries. Manuscript profile -
Open Access Article
2 - Examining the amount of cadmium and lead in the soil downstream of Taybad landfill
akram ghorbani mohammad ghafori Mohammad javad alipoorIssue 13 , Vol. 8 , Spring_Summer 2023The aim of this study was to investigate the emission of heavy metals (cadmium and lead) in the soil around Taybad landfill. For this purpose, 15 stations at a distance of 100 meters from each other to the landfill of Taybad city were selected for sampling. Sampling 5 s MoreThe aim of this study was to investigate the emission of heavy metals (cadmium and lead) in the soil around Taybad landfill. For this purpose, 15 stations at a distance of 100 meters from each other to the landfill of Taybad city were selected for sampling. Sampling 5 samples and repeating 3 times from each station, the samples were transferred to the laboratory for analysis to check the level of pollution indicators. Hypotheses were analyzed using one-sample t-test and Pearson's correlation coefficient with spss 24 software. It was found that the average total concentration of lead is equal to 52.04 and the average total concentration of cadmium is equal to 1.748. The concentration of the mentioned metals is significantly higher than the average global soil and earth's crust with 95% confidence. In the case of lead and cadmium, the highest contamination was in station 10 and 4, and the lowest contamination was in station 6 and 12, respectively. It is concluded that the amount of soil contamination does not change significantly with increasing distance, because the volume and concentration of contaminant runoff from the landfill (contaminant) along the path is constant. Therefore, it is better to provide environmental training for municipal municipal personnel and citizens of the region and to invest in the restoration of the environment and its further protection. Manuscript profile -
Open Access Article
3 - Investigating the impact of climate change on the environment and agriculture
Bahareh Rafiei Hamed Kioumarsi Reza Naseri Harsini Seyed Mohammad Reza MahdavianIssue 13 , Vol. 8 , Spring_Summer 2023During the last century, science and technology have grown and developed significantly, however, this development, along with all the advantages and added values for the quality of human life, has brought inappropriate effects on the environment. Unfortunately, the huma MoreDuring the last century, science and technology have grown and developed significantly, however, this development, along with all the advantages and added values for the quality of human life, has brought inappropriate effects on the environment. Unfortunately, the human conflict with the problems which has created for the planet, including wars and new diseases, has caused less attention to the impact of climate change on environment and especially the related agriculture activities. If the agricultural sector exposed by climate change and will not be able to meet human food needs, life will be near to its end point. Agricultural activities are not only exposed to these changes, but also by leaving possible negative effects on environment lead to these changes. Threatening food security, the reduction of biological diversity, the loss of soil, the reduction of water resources, and the conversion of forests into farms and their gradual destruction, turn the earth into an unlivable area with the unpredictable occurrence of storms, floods and temperature changes. Therefore, investigating the impact of climate change and its components on different ecosystems and species that affect agriculture can be a step towards achieving new management mechanisms to reduce and adapt to these changes and achieving sustainable environment and agriculture. Manuscript profile -
Open Access Article
4 - Investigation of the trend of climate change using simulated data of LARS-WG model in the period of 2011-2030 (Case study: Sardasht region of West Azerbaijan)
maryam aghaie zahra eslamianIssue 13 , Vol. 8 , Spring_Summer 2023Given the importance of climate change on the structure of the planet's environment and its in habitants, and will continue to try to understand as much as possible how climate change is happening. In this study in the climatic phase, daily data of minimum temperature, MoreGiven the importance of climate change on the structure of the planet's environment and its in habitants, and will continue to try to understand as much as possible how climate change is happening. In this study in the climatic phase, daily data of minimum temperature, maximum temperature, precipitation and sunshine hours of Sardasht synoptic station in the period 1996-1996 were simulated using LARS-WG statistical model and after ensuring the efficiency of this model in Simulation of meteorological parameters in Sardasht region, to study climatic parameters in climate change, data; Three scenarios A2 (maximum scenario), A1B (medium scenario) and B1 (minimum scenario) of HadCM3 model in the period 2030-2011 were scaled with LARS-WG small statistical model. The results showed that according to the estimation of LARS-WG model for the studied scenarios in the future periods, the average temperature of Sardasht watershed will increase by 4 degrees Celsius. The amount of precipitation also shows a 2% increase compared to the base period. The results also show that in general, the performance of Lars model in modeling the meteorological variables of the stations under study is appropriate and can be used to reconstruct the data of stations in the past or Extend this data to the next period. It can also be used to assess the future climate of the province on a local scale. Manuscript profile -
Open Access Article
5 - Investigation of compressive strength and weight loss in high-temperature alkaline concrete
Mohammadhosseim MansourghanaeiIssue 13 , Vol. 8 , Spring_Summer 2023Environmental protection plays an effective role in human health. In this regard, in recent decades, high-strength concrete in order to excel mechanical properties and durability and eliminate environmental disadvantages (due to the production of toxic carbon dioxide) i MoreEnvironmental protection plays an effective role in human health. In this regard, in recent decades, high-strength concrete in order to excel mechanical properties and durability and eliminate environmental disadvantages (due to the production of toxic carbon dioxide) in ordinary concrete, has been considered by civil engineering researchers. In this laboratory study, a mixing plan was made of ordinary concrete containing Portland cement with a grade of 500 kg/m3 and a mixing plan was made of alkaline concrete based on slag from a composing furnace. In order to evaluate the mechanical properties and durability, compressive strength and weight reduction tests of concrete were performed at 21 and 600 °C at a 90-day curing age in concrete. Applying high heat in concrete samples caused a decrease in the results of compressive strength test in ordinary concrete and reinforced concrete by 42.31% and 14.9%, respectively, and in weight loss test by 0.0067 and 0.0064%, respectively. Weight loss was achieved in ordinary concrete and alkaline concrete. Alkaline reinforced concrete in the compressive strength test at 21 and 600 degrees Celsius, showed an advantage of 11.41 and 64.35 percent compared to ordinary concrete. The results of scanning electron microscopy imaging test were in coordination with the results of other tests in this study. Manuscript profile -
Open Access Article
6 - Value chain and commercial development of Sea buckthorn (Hipphophae rhamnoides L.) due to the country's food security
Hamid Ahani Pari AbdollahiIssue 13 , Vol. 8 , Spring_Summer 2023Prevention of diseases, increase of body immunity and health and health attitude, along with income generation, which is one of the economic goals of every country, can be realized with the development of medicinal plants. The bitter elder species with the scientific na MorePrevention of diseases, increase of body immunity and health and health attitude, along with income generation, which is one of the economic goals of every country, can be realized with the development of medicinal plants. The bitter elder species with the scientific name Hipphophae rhamnoides L. and the English name sea buckthorn is native to Iran and has many values that have been introduced in this research. The economy of resistance, which is one of the general policies of the system, will happen with the production of multi-purpose plants due to the climatic and social political crises. The development of economic species with the participation of communities along with the green space fulfills the production of medicine and food.It can include a bank for the development of gardens outside the city or domestic and foreign investors. According to the permission of the Ministry of Jihad and Agriculture, as well as the approval of the Science and Technology Park, part of the people have become familiar with the properties of this beautiful and economic medicinal plant in our country, but this plant is still not known to the public. By planting this species as a multi-purpose species, it is also possible to generate income with the products of this plant such as leaves and fruits. This species tolerates temperatures up to minus forty degrees. The purpose of this research is to introduce the properties and effective ingredients of this plant to be a guide for decision makers and investors. Manuscript profile -
Open Access Article
7 - Evaluating the effect of organizational culture on green management with the mediating role of psychological empowerment of employees (Case study: West Mazandaran Electricity Distribution Company)
Mehdi Jahanshahi Mir Hamid Taghavi Alireaza AliahmadiIssue 13 , Vol. 8 , Spring_Summer 2023According to many researchers, appropriate cultural conditions and contexts can create the environment that is environmentally sensitive and strives to use resources efficiently and create social responsibility. The aim of this study is to evaluate the effect of organiz MoreAccording to many researchers, appropriate cultural conditions and contexts can create the environment that is environmentally sensitive and strives to use resources efficiently and create social responsibility. The aim of this study is to evaluate the effect of organizational culture on green management with the mediating role of psychological empowerment in West Mazandaran Electricity Distribution Company as a study sample. This study is an applied research in terms of purpose and it falls into the category of cross sectional - survey research based on its nature. The main data collection tool is a questionnaire has validated by three methods of content validity, structural validity and convergent validity. In addition, Cronbach's alpha has been 0.96 and the composite reliability of all dimensions of the questionnaire has been above 0.7. The statistical sample of the study includes 98 employees of West Mazandaran Electricity Distribution Company have selected by simple random sampling method and Cochran's formula for uncertain communities. To test the hypotheses, structural equation modeling (SEM) technique with Smart PLS3 software has been used.The results have shown that 1.Organizational culture has a direct and significant effect on psychological empowerment of employees 2. Organizational culture has a direct and significant effect on green management 3. Psychological empowerment of employees has a direct and significant effect on green management. In other words, organizational culture has a direct and indirect effect (through psychological empowerment of employees) on green management. Manuscript profile -
Open Access Article
8 - Investigating the status of microbial contamination (intestinal enterococcus) of Caspian sea on the coastal recreational waters of Gilan
Aazam Nezamhashemi Ameneh Mansourghanaei Mohammad Vafajoye Diyanati Mousa Amini Toraj SadeghiIssue 13 , Vol. 8 , Spring_Summer 2023Microbial agents are among the most important pollutants that enter the Caspian Sea through untreated urban and rural sewage and cause health risks for swimmers. Intestinal enterococcus causes symptoms of stomach and intestinal inflammation.This research is a descriptiv MoreMicrobial agents are among the most important pollutants that enter the Caspian Sea through untreated urban and rural sewage and cause health risks for swimmers. Intestinal enterococcus causes symptoms of stomach and intestinal inflammation.This research is a descriptive study and was conducted with the aim of investigating the contamination status of enterococcal enterococci in the water of the Caspian Sea coastal recreational waterson the coasts of Gilan province and comparing it with the standards of the environment and the Ministry of Health. 55 samples (each swimming pool, 5 replicates) were sampled from 11 coastal areas of the Caspian Sea in Gilan province in September 1401. Intestinal enterococcus variables, water temperature, pH, salinity and turbidity were measured according to the methods in the standard method book. The results showed that the average number of intestinal enterococcal bacteria per 100 ml of sample showed 52.54 MPN. Comparison of the average number of intestinal streptococci in different stations with the standard of the environment and the Ministry of Health showed that 5 stations (Safir Omid, Sadaf, Gisom, Tashe Abad and Chamkhale) were above the permissible limit. Also, there was a negative correlation between the number of intestinal streptococci and water pH (P<0.05). As a result of this research, it indicates the microbial contamination with intestinal enterococcus in some natural coastal recreational waters on the shores of the Caspian Sea in Gilan province, which can threaten the health of swimmers. Manuscript profile -
Open Access Article
9 - Protection of ecosystem services in Amirkelayeh international wetland strategic management plan
mokarram ravanbakhshIssue 13 , Vol. 8 , Spring_Summer 2023Wetlands are among the most important and endangered global ecosystems and provide a set of ecosystem services to society. Wetland management is an active process of supporting ecosystem services, because human activity simultaneously extracts economic and social benefi MoreWetlands are among the most important and endangered global ecosystems and provide a set of ecosystem services to society. Wetland management is an active process of supporting ecosystem services, because human activity simultaneously extracts economic and social benefits from ecosystem services, so in order to maintain these services for a long time and sustainably, quick balance through planning and decision appropriate selection is required. In Iran, based on the 4th, 5th and 6th development plans of the country, the Environmental Protection Organization has been obliged to implement the ecological management program in cooperation with other organizations and main stakeholders. The Integrated management plan is a strategy for the integrated management of water, land and livelihood resources that promotes conservation and sustainable use in a balanced manner. Integrated management plan of Amirkelayeh international wetland has been prepaired in the form of an international plan for the protection of Iran's wetlands. The method used is strategic planning system. This management plan has been prepared based on the results of educational and consultative workshops and with the participation of representatives of major local and provincial groups. In this research, the general framework of the prepaired plan, including strategic and special objectives, and priority actions to achieve the final goal and vision, has been examined. Manuscript profile -
Open Access Article
10 - Patterns of Water Quality Changes, Invasive Aquatic Plant Identification and Environmentally Friendly Control Solutions in Drinking Water Dams of Mazandaran Province
Pooyan MehrabanJoubani hadi Modabberi Seid Mohammad MosaviIssue 13 , Vol. 8 , Spring_Summer 2023This study was investigated the patterns of water quality changes and the identification of invasive aquatic plant species in drinking water dams located in Mazandaran province, including Alborz, Shahid Rajaei and Meijran Dams. The best conditions of dissolved oxygen i MoreThis study was investigated the patterns of water quality changes and the identification of invasive aquatic plant species in drinking water dams located in Mazandaran province, including Alborz, Shahid Rajaei and Meijran Dams. The best conditions of dissolved oxygen in Alborz, Shahid Rajaei and Meijran dams were around 10, 10 and 16 mg/L in April, respectively. Due to the thermal stratification created in August and September, the content of dissolved oxygen in all dams at a depth of 7 to 10 meters reached zero. Based on Carlson's index, these dams were eutrophic during these months. The highest amount of phosphate measured in July, August and September was observed in Meijran Dam. However, biological pollution of Alborz and Shahid Rajaei dams were higher than Meijran dam, the biological and chemical oxygen demand of Alborz and Shahid Rajaei dams were about 2 and 2.5 times higher than Meijran dam, respectively. Also, the amount of faecal coliform in Alborz dams was about 2 time compared Meijran dam. Despite the decrease in the amount of total coliform in three dams in September, the amount of faecal coliform in Alborz dam was about 3 times other dams. Two plants, hydrilla and Potamogeton, were observed as the invasive plants in Meijran dam, which seems that cormorant bird are the cause of invasive plants entering the dam. Manuscript profile -
Open Access Article
11 - Design, manufacture and evaluation of capacitive sensors to measure soil moisture
elham movahedIssue 13 , Vol. 8 , Spring_Summer 2023Precision agriculture is a new notion in modern agriculture. One of the reasons of the precision agriculture's growth among scientists and farmers, is the technological advancement in different fields including the geographic path system(GPS), sensors, aerial photos or MorePrecision agriculture is a new notion in modern agriculture. One of the reasons of the precision agriculture's growth among scientists and farmers, is the technological advancement in different fields including the geographic path system(GPS), sensors, aerial photos or satellite ( or RS ) and geographic information management facilities . Existence of parametric detection problems in the field of laboratory operations in the agricultural sector, particularly the detection of soil moisture persuade the specialists that always try to reach a suitable solution for soil moisture measurement needed for the plants and interested areas. So in this investigation it is tried to enable the detection of soil moisture by designing and making a hygrometer sensor which has been used of capacitive property in it. This capacitive sensor consists of two insulated aluminum plates that changes by changing the soil moisture, index of dielectric capacitor and its capacitance and frequency of the output circuit . From the characteristics of the device it can be detected to simultaneously moisture detection at several points of the field and also usage in control of the watering amount required by the plants. This machine in vitro was tested in 80 areas and for more exact tests by other different sensors. The mean error percentage received by the capacitive sensor is 0.60%. Manuscript profile -
Open Access Article
12 - Molecular Markers in Conservation Biology Studies
Nafiseh Momeni Mohsen AhmadpourIssue 13 , Vol. 8 , Spring_Summer 2023Introduction: Molecular science has an important role in the conservation and stability of animal species. Biology conservasion is essential to identify populations decline to implement adequate restoration programs. Despite molecular developments, there are many studie MoreIntroduction: Molecular science has an important role in the conservation and stability of animal species. Biology conservasion is essential to identify populations decline to implement adequate restoration programs. Despite molecular developments, there are many studies in this field to better understanding molecular merkers. Objective: In this study, the genetic markers were examined that were used in more than 100 Persian and English articles. Materials and Methods: Sources were selected from studies in the field of conservation biology, biology, molecular ecology, molecular markers and other related topics to provide a clearer model of each marker usage in the field of conservation biology. Results: In general, each molecular marker is not limited to one case, but there is a clear relationship between the characteristics of each marker and the maximum usage in many cases. Discussion: However, selecting the adequate marker in a wildlife conservation study the following steps are suggested: 1) study the species 2) Check the problems scale 3) Characteristics of molecular markers. Also, considering the mutation rate and the variability degree among nuclear and mitochondrial markers has a role in selecting of adequate marker. But in order to obtain accurate genetic and ecological information in conservation biology, the principles of population genetics and molecular evolution require more comprehensive education; By comparing molecular results with other sciences and quality control of the sequenced gene, more reliable results were obtained in the field of genetics and conservation. Manuscript profile
Most Viewed Articles
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Open Access Article
1 - Determination of the Relationship between Water Turbidity (NTU) and Total Suspended solids (TSS) in drip irrigation
farhad mirzaei zeynab sojoodiIssue 6 , Vol. 4 , Autumn_Winter 2020Sand filters are composed of sand-filled containers with determined granulation and specified thicknesses of pressurized sand layers that work under pressure and they are placed in the center control system after the cyclone and before the grid or disk filter. The aim o MoreSand filters are composed of sand-filled containers with determined granulation and specified thicknesses of pressurized sand layers that work under pressure and they are placed in the center control system after the cyclone and before the grid or disk filter. The aim of this study was to determine the relationship between water turbidity and Total suspended solids (TSS). To determine the samples turbidity, they were tested using a spectrophotometer and the percentage of light passing was obtained through each sample separately. The test of determining total suspended solids was also performed. The results of this experiment showed that there is a quadratic equation between the percentage of light passing and total suspended solids, which is presented as the main equation from figure 3, that is more correlated with the data. As can be seen, at 450 nm, there is a higher correlation between the turbidity and the light transmittance and less error. Manuscript profile -
Open Access Article
2 - Assessment and Environmental Impact Analysis of the Urban Streets using Multi-Criteria Decision Making Model (Case Study: 58-meter street of Arak)
maryam hosseinkhani amir ansari amir Hedayati AgmashhadiIssue 6 , Vol. 4 , Autumn_Winter 2020The purpose of this research is assessing and planning the urban streets of Arak city. In this research, environmental impacts were assessed by using these three methods: Multi-criteria like rapid matrix, ANP and fuzzy TOPSIS that both of them are decision-making method MoreThe purpose of this research is assessing and planning the urban streets of Arak city. In this research, environmental impacts were assessed by using these three methods: Multi-criteria like rapid matrix, ANP and fuzzy TOPSIS that both of them are decision-making methods. The process that has been followed in this study includes, determining the indicators, (using library studies), specifying geographic area, introducing the options, studying the environmental basic conditions, indicating and predicting and impacts, assessing the impacts using the three mentioned methods and providing the report. In the following, the status of the environmental factors was investigated. Then, the most important factors that might be affected by 58-meter street construction were identified using checklist, and were selected as the criteria for impact assessment. Then environmental impact assessment was separately fulfilled by using three methods like rapid assessment (matrix), fuzzy TOPSIS and ANP. Due to the the more negative impacts relatively to the positive impacts in the rapid matrix method, the project was rejected. In both fuzzy TOPSIS and ANP methods the non-execution option has the most weight and preference. But among these methods, the ANP method is introduced as a suitable method for environment impacts assessment in different projects because of its ability to create a network with interaction between criteria and options at different levels and directions. Manuscript profile -
Open Access Article
3 - The Study of Environmental Impacts of Pistachio Production Using Life Cycle Assessment, (Case Study: Rafsanjan City)
Maryam Rajaei Mohammad Reza Elmi Mahin MalekianIssue 6 , Vol. 4 , Autumn_Winter 2020Life Cycle Assessment method is an accepted approach for assessing the environmental impacts of a product's life cycle, which is calculated on the basis of two components: the amount of consuming resources and the release of pollutants to the environment. In this study, MoreLife Cycle Assessment method is an accepted approach for assessing the environmental impacts of a product's life cycle, which is calculated on the basis of two components: the amount of consuming resources and the release of pollutants to the environment. In this study, the environmental impact assessment of pistachio production from the beginning of planting to the field door was estimated using Life Cycle Assessment (LCA) method in Rafsanjan. Initial data were collected through questionnaire method and interview with local farmers. The collected data were analyzed using Ecoinvent®3.0 database and Simapro8.0.4.30 software. The system boundary, field and work unit were considered as a ton of pistachios in this study. The results of this study showed that the use of diesel and electricity as energy sources lead to the release of CO2, NOx, SOx and heavy metals into the environment. Analysis of the pistachio data showed that emissions from fertilizers in the layers had the highest role in source reduction, global warming, toxicity to humans, toxicity to marine aquatics and chemical photooxidation. Emissions from fuel consumption had the greatest effect on ozone layer depletion. Manuscript profile -
Open Access Article
4 - Evaluation of natural adsorbents in water and wastewater treatment
Mohadeseh TavakoliIssue 7 , Vol. 5 , Spring_Summer 2020With increasing industrial activities and discharging untreated wastewater which contains various environmental pollutants to aquatic environments, problems such as reducing the penetration of light, anaerobic conditions and complications such as allergies and cancer fo MoreWith increasing industrial activities and discharging untreated wastewater which contains various environmental pollutants to aquatic environments, problems such as reducing the penetration of light, anaerobic conditions and complications such as allergies and cancer for humans and other living organisms will occur. Surface absorption is one of the most effective and efficient methods for the removal of environmental pollutants and among the common methods for treatment of wastewater, applying natural adsorbents are more efficient than the other methods and is more economic. Since there are many natural adsorbents in nature, they are very inexpensive, they are even free in some cases; adsorption of contaminants by these materials can be a suitable way to remove the toxic substances of contaminated water and industrial wastewater. In this paper, we study some of bioactive adsorbents in order to remove contamination from industrial wastewater. Manuscript profile -
Open Access Article
5 - Investigation of Congored dye removal from industrial waste water using adsorption method
Mohadeseh Tavakoli niloofar AbedinzadeIssue 6 , Vol. 4 , Autumn_Winter 2020These days, the removal of various dyes from industrial wastewater has become an important concern. Synthetic dyes used in industries such as textiles are complex, toxic and mutant organic materials. Congored is also an acidic dye that is considered a high- risk source MoreThese days, the removal of various dyes from industrial wastewater has become an important concern. Synthetic dyes used in industries such as textiles are complex, toxic and mutant organic materials. Congored is also an acidic dye that is considered a high- risk source of contamination and threatens the lives of humans and other living organisms. Different methods, such as electrochemical, physical and biological processes, are used to remove organic pigment from aqueous samples. Adsorption is one of the most effective modern methods of industrial wastewater treatment, which is a relatively simple and inexpensive process that produces non- toxic and low- risk products. The purpose of this study is removing the Congored dye from aqueous solutions and reviewing the accomplished researches for remove it. Manuscript profile -
Open Access Article
6 - Effect of Pennyroyal (Mentha Pulegium L.) on Performance, Carcass Characteristics and Some of the Blood Parameters in Broilers
Ali Reyan Mohasesi Hasan Darmani Koohi Reza Naseri Harsini Ali Mirza Aghazadeh Hamed KioumarsiIssue 6 , Vol. 4 , Autumn_Winter 2020To investigate the effects of pennyroyal (Mentha pulegium L.) powder on performances, the concentration of some blood parameters and carcass characteristics of broilers, 160 one-day-old Ross chicks were used in the form of a completely randomized design with four treatm MoreTo investigate the effects of pennyroyal (Mentha pulegium L.) powder on performances, the concentration of some blood parameters and carcass characteristics of broilers, 160 one-day-old Ross chicks were used in the form of a completely randomized design with four treatments and four repetitions. Experimental treatments included the levels of zero (control), 0.2%, 0.4%, and 0.6% of pennyroyal powder. The treatment containing 0.6% of pennyroyal powder compared to the control group had higher feed consumption in the starter period (P <0.05). However, there was no significant difference during the growth period and the whole experimental period. In terms of average daily weight gain and feed conversion ratio, there was no significant difference between the experimental treatments during the starter, growth and the whole experimental periods. The carcass percentage decreased significantly at the age of 42 days in treatments containing pennyroyal powder compared to the control group (P <0.05). There was no significant difference between experimental treatments in terms of weight percentage of carcass components including thigh, chest, abdominal fat, heart, liver, and gizzard. The concentration of triglycerides and plasma VLDL decreased significantly in treatments containing pennyroyal powder and decreased linearly compared to the control group (P <0.05). In terms of cholesterol and plasma HDL levels, a significant decrease was observed in treatment containing 0.4 level and treatment containing 0.2 percent of pennyroyal powder compared to the control group (P <0.05) respectively. Plasma LDL levels were not affected by experimental treatments. The results of the present study showed that the use of limited levels of pennyroyal powder up to 0.6% has no significant effect on the performance of broilers. Manuscript profile -
Open Access Article
7 - Prioritization of energy recovery technologies from municipal solid waste (Case study of Mashhad)
Arman ShahnazariIssue 7 , Vol. 5 , Spring_Summer 2020Thermal energy recovery technologies which used to burn solid urban waste are one of the relatively new and appropriate methods in waste management. Heat and gases are generated by burning waste that can be used to generate energy. In this research, a decision model bas MoreThermal energy recovery technologies which used to burn solid urban waste are one of the relatively new and appropriate methods in waste management. Heat and gases are generated by burning waste that can be used to generate energy. In this research, a decision model based on the Analytic Hierarchy Process (AHP) method is Provided to select the best thermochemical system based on three technical, economic and environmental criteria. In this study, waste incineration, gasification, pyrolysis and plasma systems were evaluated. Collection of required information was obtained by reviewing reliable sources and preparing and completing questionnaires. The study area in this study is Mashhad city. The results of this study indicate that among the studied systems, plasma system (technology) is the best option for energy recovery from solid wastes in Mashhad, after that, waste incineration, gasification and pyrolysis systems are in the next categories, respectively. Manuscript profile -
Open Access Article
8 - Application of Drastic Model in the Studying Process of Industrial Development of Sari Plain
mohammad rahmani tahere azariIssue 6 , Vol. 4 , Autumn_Winter 2020New industrial estates developments must follow the effective factors in protection, management and sustainable development of aquifers and water resources in a plain in order to meet the needs of people. Therefore, assessment of the aquifer vulnerability potential for MoreNew industrial estates developments must follow the effective factors in protection, management and sustainable development of aquifers and water resources in a plain in order to meet the needs of people. Therefore, assessment of the aquifer vulnerability potential for locating new industrial estates settlements is necessary. So, investigation of the vulnerability of Sari plain groundwater resources for locating the industrial zones is necessery. In this research, the risk map of the plain was prepared using a drastic model to assessment of the effective hydrogeological factors in locating the industrial estates of Sari plain. The results of the Drastic model showed that Sari aquifer vulnerability is classified in three groups of highly vulnerable (10.49%,), very highly vulnerable (56.66%) and too highly vulnerable (32.85%). Sensitivity analysis based on two-way single parameter and parameter deletion methods showed that the depth of the water-table factor is the most sensitive factor on the DRASTIC vulnerability index. Sari aquifer is strongly affected by agricultural and industrial activities' pollutants due to shallow water-table; so, the study area is not suitable for establishment of industrial estates based on the final vulnerability map, the aquifer extreme vulnerability potential and the amount of exsisting pollutant. Also, if environmental considerations are not respected by farmers and the existing industrial units in the plain, the aquifer will be suffering serious damages. Manuscript profile -
Open Access Article
9 - Cheese whey recycling, the right approach to prevent environmental damage
Zahra Katabehei Moradi Maryam Haghighi khomami Hamed Kioumarsi hooshang dehghanzadeh saeed tamadoni jahromiIssue 7 , Vol. 5 , Spring_Summer 2020Today, with increasing in production and diversity expansion of dairy products in factories and production of whey products, this food product has become very important. Whey is a water-soluble part of milk that is obtained by adding acid, heating, and coagulating the c MoreToday, with increasing in production and diversity expansion of dairy products in factories and production of whey products, this food product has become very important. Whey is a water-soluble part of milk that is obtained by adding acid, heating, and coagulating the cheese. This yellow liquid contains a lot of lactose and mineral compounds such as calcium and phosphorus, which is important to achieve in order to use as a food source and prevent environmental pollution. Since the wastewaters of the dairy industry have the highest levels of contamination, if the untreated wastewaters of this industry are discharged, serious environmental problems will be inevitable. On the other hand, a reduction in existing reserves and environmental problems followed by increasing use of fossil fuels has prompted researchers to produce new sources of renewable energy, and it can be said that new biological technologies, such as the use of whey as a way to produce biofuels, reduces the environmental problems of dischrging this kind of wastewaters into nature. Today, using biological technology, these compounds can be used to produce biofuels such as hydrogen, methane, and ethanol. So far, various methods and tests have been performed to produce these fuel sources and in this study, the effective strategies for recycling whey and preventing environmental damages are investigated. Manuscript profile -
Open Access Article
10 - The Investigation of Ability to Degradation and Removal of Various Dyes Using Silver Colloidal Nanoparticles
Mohadeseh Tavakoli Fariba OstovarIssue 4 , Vol. 3 , Spring_Summer 2018Colors are one of the most important pollutants of water, and only one entry into the water can significantly reduce the quality of water. In addition, due to the synthetic origin and the presence of complex molecules in the structure of colors, the purification process MoreColors are one of the most important pollutants of water, and only one entry into the water can significantly reduce the quality of water. In addition, due to the synthetic origin and the presence of complex molecules in the structure of colors, the purification process is sometimes accompanied by some problems. Colloidal nanoparticles play an important role in technology, especially in the manufacture of glass and ceramics, and are used as a suitable method for cleaning pollutants in water and wastewater. In this study, a chemical regeneration method was used to synthesize colloidal silver nanoparticles. Then, to evaluate the efficiency of synthetic silver nanoparticles, several solutions of dye and pigments such as sulfur, azo, reactive, cationic and anionic dyes were prepared and synthetic material was used for degradation of different colors. Finally, the effect of this colloidal nanoparticle on each of them was studied and compared. The results showed that silver colloidal nanoparticles have the ability to degradation and removal of methyl orange and methyl red dyes from aqueous samples, and these nanoparticles can be used for treatment the water and wastewater containing these dyes. Manuscript profile
