• Journal of Environmental Research and Technology ( Scientific )
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    پژوهش و فناوری محیط زیست


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    • Open Access Article

      1 - Modeling the correlation between drought, number of rainy days and evapotranspiration in Fars province
      maryam   khosravian alireza   entezari mohammad   baaghide rahman   zandi
      Issue 7 , Volume 5 , Spring 2020
      Drought is one of the recurring phenomena in all parts of the world with high-rainfall and low-rainfall climates and it is consider as a natural disaster. Iran is also one of the countries which involved in this phenomenon in different places. Its characteristics, such Full Text
      Drought is one of the recurring phenomena in all parts of the world with high-rainfall and low-rainfall climates and it is consider as a natural disaster. Iran is also one of the countries which involved in this phenomenon in different places. Its characteristics, such as the severity, duration, and extent of the drought, are vary from place to place and its damages is depending on the country's planning. In this regard, the necessity of knowing the correct weather conditions and climatic characteristics of different regions have become clear to planners through environmental, economic, agricultural and industrial potentials and their optimal use, as well as predicting the occurrence of natural disasters such as floods and droughts. In this study, for evaluating and comparing drought and wetness events, the precipitation data for the period (1987-2017), as well as the evaporation and transpiration data and the number of rainy days during a statistical period of 10 years (2008-2017) were obtained from 9 stations in Fars province. The standardized precipitation index (SPI) was used, and the Arc GIS software, the drought zoning, evaporation and transpiration maps, and the number of rainy days in the province were plotted. In the studied years, Fars province has faced a near-normal state for 24 years in and drought for 5 years and wetness for one year. The drought situation was studied and analyzed in Shiraz city in the continuation. According to the obtained results, the drought in Shiraz city is more severe than the other parts of the province and it will continue in the future. The SPI index has the highest correlation with the parameters of the number of rainy days with a rate of (0.46) and evaporation and transpiration with a rate of (0.26) in 2012 and 2008. Manuscript Document

    • Open Access Article

      2 - Investigation of the employment status of environmental and health graduates in Karaj municipality
      Seyed Hassan   Mousavi Farhad   Soufiyan
      Issue 7 , Volume 5 , Spring 2020
      The purpose of this study is investigation of the employment status of environmental and health graduates in Karaj Municipality. In the first step, frequency and frequency percentage of all employers at three levels of completely related fields of education (including e Full Text
      The purpose of this study is investigation of the employment status of environmental and health graduates in Karaj Municipality. In the first step, frequency and frequency percentage of all employers at three levels of completely related fields of education (including environmental science and environmental health), semi-related fields of education and unrelated fields of education were investigated in three groups of central headquarters, organizations and regions according to the information received from the planning deputy of Karaj municipality. In the second step, the relationship between education and work responsibility of experts and heads of the responsible departments for environmental protection was investigated. The results showed that only 1% of the total personnel of Karaj Municipality have a specialty in completely related fields of study and 3.1% of them were graduates in semi-related fields of study. Only 8 (16.3%) of the 49 personnels with completely related fields of study, have been employed in their education-related responsibilities. The results also showed that only 5 (42%) of 12 heads of the departments or responsible personnels for environmental protection have education in completely related fields of study and only one of them were graduates in semi-related fields of study. This fact indicates the lack of attention of municipal managers to the existing organizational chart and non-regulation of the responsibilities distribution especially in the environment and health field. Based on the research results, reviewing and modifying the process of personnel recruitment and using managers and experts with a relevant specialty in the Karaj municipality is necessary as the first prerequisite for managing and preserving the environment to achieve sustainable development. Manuscript Document

    • Open Access Article

      3 - A review of widely used industrial dyes and their removal methods from water and wastewater
      Fariba   Ostovar Marzieh   Hasanzadeh
      Issue 7 , Volume 5 , Spring 2020
      In recent years, the expansion of industries has led to increase industrial wastewater production and environmental pollution. Dyes materials are one of the most important pollutants in industrial wastewater. Today, dyes are widely used in various industries such as tex Full Text
      In recent years, the expansion of industries has led to increase industrial wastewater production and environmental pollution. Dyes materials are one of the most important pollutants in industrial wastewater. Today, dyes are widely used in various industries such as textile, paper, leather, printing, and cosmetics. Drainage of colored wastewater does not only affect the aesthetic aspect of the receiving water but also reduces the process of photosynthesis. Also, the colors and their intermediate products are toxic, carcinogenic and mutagenic for aquatic life. Most of these dyes cause skin allergies, dermatitis, and itching, and accelerate the incidence of cancer and mutation in humans. Therefore, industrial wastewaters containing dye need to be treated prior to discharge into the receiving environment. The purpose of this study was to provide a summary of the most important industrial dyes, the health and environmental effects of dyes as pollutants, and to describe the methods for their removal from water and wastewater. In this study, different dye removal methods such as biological, physical and surface adsorption methods were described and the best process for treatment of colored wastewater was introduced considering the economical cost. Manuscript Document

    • Open Access Article

      4 - Evaluation of natural adsorbents in water and wastewater treatment
      Mohadeseh   Tavakoli
      Issue 7 , Volume 5 , Spring 2020
      With 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 Full Text
      With 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 Document

    • Open Access Article

      5 - Investigation of the trend of land use changes in Rey city using remote sensing data
      sara   foroutan mahmoud   shariat mirmasoud   kheirkhah zarkesh rahim   sarvar
      Issue 7 , Volume 5 , Spring 2020
      Rey city has experienced unprecedented urban growth in recent decades that leading to drastic changes in the land use of the region. Therefore, the purpose of this article was to investigate the changes in land use area of Rey city during the years 1988 to 2006 using ae Full Text
      Rey city has experienced unprecedented urban growth in recent decades that leading to drastic changes in the land use of the region. Therefore, the purpose of this article was to investigate the changes in land use area of Rey city during the years 1988 to 2006 using aerial photographs and satellite images of Landsat and IRS. With supervised and unsupervised classification of the satellite images, 4 land uses types including urban lands, agricultural lands, green spaces and barren lands were extracted. Land use layers were compared in pairs and the rate of land use changes was extracted. The results showed that urban land use made and urban green space have increased 369.7 and 55.6 hectares, respectively, and agricultural lands and barren lands have decreased 213.8 and 211.5 hectares, respectively. The growth of residential areas during a period of 6 years from 2000 to 2006 totally with 212.7 hectares has been faster changed than a period of 12 years from 1988 to 2000 with 157 hectares. A pairwise comparison matrix of land uses was used to determine the amount of environmental damages caused by unprincipled changes in the region land uses in the studying period. The results show that the conversion of barren lands, agriculture and urban green space into residential lands with the amounts 44.65, 42.44 and 14.85 causes high degree of environmental damages. Land use change, especially the loss of vegetation, has a negative impact on the landscape. Manuscript Document

    • Open Access Article

      6 - Prioritization of energy recovery technologies from municipal solid waste (Case study of Mashhad)
      Arman   Shahnazari
      Issue 7 , Volume 5 , Spring 2020
      Thermal 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 Full Text
      Thermal 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 Document

    • Open Access Article

      7 - Estimation of wheat area cultivation using Sentinel 2 satellite images (Case study: Sojasroud region, Khodabandeh city, Zanjan province)
      Seyed Ahmad   Seyed Ahmad Nadia   Abbaszadeh Tehrani Milad   Janalipour
      Issue 7 , Volume 5 , Spring 2020
      Wheat is one of the strategic agricultural products which provides one of the most basic nutritional needs of human societies for Iran and the whole world. Having the right statistics and information of the lands under wheat cultivation and estimating the amount of thei Full Text
      Wheat is one of the strategic agricultural products which provides one of the most basic nutritional needs of human societies for Iran and the whole world. Having the right statistics and information of the lands under wheat cultivation and estimating the amount of their production in one crop year can help the planners of agriculture and industry to manage the production and consumption of the mentioned product as effectively as possible. One of the tools that can calculate the level of wheat cultivation in the shortest time and with low cost and appropriate accuracy is the science and technology of remote sensing. In the present study, using a supervised classification of images from several time of Sentinel 2, the area under wheat cultivation and its production rate for the 96-97 crop year has been estimated. Supervised classification with the overall accuracy of 80% and a kappa coefficient of 0.8 has acceptable and suitable results for the identification and separation of wheat from other agricultural crops. Manuscript Document

    • Open Access Article

      8 - Cheese whey recycling, the right approach to prevent environmental damage
      Zahra   Katabehei Moradi Maryam   Haghighi khomami Hamed   Kioumarsi hooshang   dehghanzadeh saeed   tamadoni jahromi
      Issue 7 , Volume 5 , Spring 2020
      Today, 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 Full Text
      Today, 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 Document

    • Open Access Article

      9 - Analysis of social and cultural challenges of dam construction in affected rural areas; Case study: Darian Hawraman da
      kourosh   amini
      Issue 7 , Volume 5 , Spring 2020
      Hawraman area, according to the prevailing cultural and natural properties in particular is closely connected to the surrounding nature. In this sense, development plans tangible and specific impact on the social life. The main objective of this research is analysis of Full Text
      Hawraman area, according to the prevailing cultural and natural properties in particular is closely connected to the surrounding nature. In this sense, development plans tangible and specific impact on the social life. The main objective of this research is analysis of social and cultural challenges of Darian Hawraman dam construction. The present study was performed by descriptive survey method. The statistical society is Sirvan basin from Rudbar and Belbar village to the zero point of the border. According to the 43,522 people directly and indirectly affected population, the sample size was estimated 364 people based on Cochran's formula which was chosen by Snowball sampling method and responded to the questionnaire made. Nonparametric chi-square test was used for statistical analysis of data. Chi-square test results showed that construction of a dam has a meaningful effect (P<0/05) on cultural and social dimensions. From the perspective of the dam construction respondents, it has created a serious challenge in the cultural and social dimensions. Due to the effectiveness of the desired dimensions of the dam construction it can be said according to the present study, the most important challenges created in the study area is a threat against Hawrama's n traditional, cultural and social and to some extent livelihood systems that leads to fear of losing identity, the loss of solidarity, and threats to horticultural, architecture and language systems. On the other hand, fading local customs and thus indirectly decline in social capital are the other bad consequences of the dam construction. Manuscript Document

    • Open Access Article

      10 - New dominance of planktonic groups in the southeastern part of the Caspian sea
      niloufar   norouzi
      Issue 7 , Volume 5 , Spring 2020
      An ongoing ecological study of the Caspian Sea, in a particular distribution, identifying the species composition and regional variations, seems to be necessary before any study. According to this, in the present study, the type of dominance of planktonic groups in sout Full Text
      An ongoing ecological study of the Caspian Sea, in a particular distribution, identifying the species composition and regional variations, seems to be necessary before any study. According to this, in the present study, the type of dominance of planktonic groups in southeastern basin of the Caspian Sea (Golestan Province) was studied. For this purpose, sampling of planktonic groups was done once in September 2015 with 3 repetitions. The results of phytoplankton study showed that there are 4 orders, 4 families and 4 genera in the study areas, which constitute Euglenophyta (Euglena sp. 99.9% density), Dinoflagellata (Procentrum sp. 99.5% density) and Bacillariophyta (Diatum group. 100% density), the main phytoplanktons flora of the ecosystem, respectively. The Genus Euglena is the index of hypertrophic waters and is the first time that has been seen predominantly in the studied basins. The results of zooplankton study also indicate the destruction of this planktonic group (only 1 zooplankton of the species Keratella cochlearis from the genus Rotifera was observed), which is mainly due to the toxin produced by Euglena and the anaerobic conditions in the ecosystem. In general, the results indicate a critical quality status of the studied areas, the loss of high amounts of living fauna and flora and the dominance of toxic and inappropriate planktonic groups in the ecosystem. Manuscript Document

    • Open Access Article

      11 - Monitoring and determination of the urban green coverage threshold based on Landsat data, Case study: Zones 1 and 6 from Shiraz city
      hadi   abdolazimi Hosein   Roosta
      Issue 7 , Volume 5 , Spring 2020
      Changing the use of urban green cover over time can create various environmental hazards for the citizens of a city. Due to the importance of the subject, the present study intends to investigate the temporal and spatial changes of green cover in areas 1 and 6 of Shiraz Full Text
      Changing the use of urban green cover over time can create various environmental hazards for the citizens of a city. Due to the importance of the subject, the present study intends to investigate the temporal and spatial changes of green cover in areas 1 and 6 of Shiraz metropolis using Landsat satellite images during five decades (1972 to 2019). For this purpose, after performing radiometric and atmospheric corrections, maps resulting from plant indices including NDVI, SAVI, OSAVI as well as the maximum likelihood algorithm were prepared in ENVI5 software and classified and evaluated in Spatial Information System (GIS). The results of this study showed that the area of the green cover in region 1 has decreased in terms of hectares in NDVI, SAVI, OSAVI indices respectively and also in the maximum likelihood algorithm has decreased from 1394 to 428, from 789 to 421, from 815 to 419, from 1402 to 439, respectively and in region 6 was decreased from 1374 to 858 (NDVI), from 1160 to 862 (SAVI), from 1149 to 884 hectares (OSAVI) and in the algorithm, the maximum likelihood of similarity has decreased from 1393 to 855 hectares. Investigation of threshold values of plant indices to identify urban green cover showed that the range of threshold values in NDVI was variable from 0.2 to 0.3, in SAVI was variable from 0.44 to 0.47 and in OSAVI was variable from 0.34 to 0.36 and using Pearson test in SPSS software, correlation coefficient values between NDVI, SAVI, OSAVI, maximum likelihood algorithm and the studied years were significant at the 1% level. The results of this test also indicated that there was no significant difference between the results of these methods in this study. This reduction of green cover is considered a serious danger for the citizens of Shiraz. Manuscript Document

    • Open Access Article

      12 - Detection and prediction of forest level changes in Guilan province using satellite images and geomod model
      sahar   abdollahi Vahid   Nasiri
      Issue 7 , Volume 5 , Spring 2020
      Following the rapid economic and social development in recent decades, human activity to use natural resources has been reflected in the form of infrastructure and agricultural activities. This has severely affected forests as an important ecosystem which are considered Full Text
      Following the rapid economic and social development in recent decades, human activity to use natural resources has been reflected in the form of infrastructure and agricultural activities. This has severely affected forests as an important ecosystem which are considered potential environmental resources for future evolution. The purpose of this study is to detect changes of Guilan province forest levels during a period of 20 years (1996-2016), also modeling and predict these changes for the next 15 years using the geomod model. Landsat TM and OLI sensor images were used to prepare land use maps for 1996, 2006, and 2016 periods. Satellite images were classified into forest and non-forest classes using the maximum likelihood method and multiple educational samples. The geomod model was simulated based on the changes made in the period 1996-2006, changes in forest cover using the variables of height, slope, direction, distance from residential, distance from a road, distance from forest, with implementation for 2016. The predicted validation results of the forest cover map in 2016 is indicator the overall accuracy and value of the kappa index equal to 94.19% and 0.9159, respectively. Based on the results of detecting changes during the study period (1996-2016), 1054.97 hectares of forest area in Guilan province has been reduced and with the continuation of this trend and stable conditions in the next 15 years until 2031, another 871 hectares will be reduced from its level. Given the importance role of Hyrcanian forests, it is necessary to conduct multi-time studies to monitor and detect changes. Obviously, the information from such studies can be used in managerial and strategic planning. Manuscript Document
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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 sojoodi
      Issue 6 , Volume 4 , Autumn_Winter 2020
      Sand 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 Full Text
      Sand 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 Document

    • Open Access Article

      2 - Compare the performance of conventional coagulants made of ferric sulfate turbidity and organic carbon surface water
      Issue 2 , Volume 2 , Spring_Summer 2017
      Water treatment, according to its substantial role in life and also environmental topics, has a great importance. generally speaking, different methods are utilized in water and wastewater treatment such as: sedimentation, filtration and biologic treatment methods. One Full Text
      Water treatment, according to its substantial role in life and also environmental topics, has a great importance. generally speaking, different methods are utilized in water and wastewater treatment such as: sedimentation, filtration and biologic treatment methods. One of the most important methods applied in water and wastewater treatment is coagulation of suspended solid contents of water using coagulants. Coagulants are divided into non-organic (mineral). synthetic organic and non-synthetic organic groups. In this research, efficiency of non-organic (mineral) coagulants including Ferric chloror, Aluminum phosphate, Poly Aluminum chloride & Polly Ferric Sulphate, in coagulation – flocculation process was studied and compared using a Jar test system. It should be mentioned that for the first time in Iran, Polly Ferric Sulphate was tested during research. According to reported results, this coagulation, compared with other coagulants, indicates better performance in conception, heavier flock’s production higher sedimentation velocity, turbidity removal efficiency, organic carbon removal percent and its good performance in a wider range of temperature and pH. Moreover, because of Ferric base, it does not face with common problems of Aluminum based materials. Manuscript Document

    • Open Access Article

      3 - The Study of Solid Waste Management in Rural Healthcare Center (Case Study rural Healthcare Centers of Rasht)
      fatemeh ghanbari zeynab bazargard batol sedighi
      Issue 2 , Volume 2 , Spring_Summer 2017
      Medical waste is a part of municipal solid waste which is classified as hazardous solid waste. One of the sources of medical waste is rural healthcare centers that are prominent because of having infectious waste. This research aims to study of medical waste in rural he Full Text
      Medical waste is a part of municipal solid waste which is classified as hazardous solid waste. One of the sources of medical waste is rural healthcare centers that are prominent because of having infectious waste. This research aims to study of medical waste in rural healthcare center, the quantity of waste and the method of waste management.This study was done in two countries of Rasht. The method was according to physical analysis and questionnaires.Total amount of medical waste in studied area is 274.3 kg/year. The amount of semi-household waste and medical waste are 75 and 25 percent, respectively. The result of questionnaires indicates lack of solid waste management system in rural healthcare centers of Rasht.The results reveal that the amount of medical waste in studied district is low. This amount is a great deal less than the amount of municipal hospital waste in other research. Although the amount of medical waste is negligible, lack of management system for medical waste separation, storage and disposal will cause undesirable impact on human and their environment. Manuscript Document

    • Open Access Article

      4 - Environmental and Technical Assessment of Biogas Production using Rice Straw
      Mahsa Khodabakhshi pour محسن محمدی گلنگش mohsen khodabakhshipour
      Issue 6 , Volume 4 , Autumn_Winter 2020
      Energy consumption is increasing rapidly in the world and it is expected that unrenewable energy sources will expire in the future; therefore, new methods of energy production are becoming more common all over the world. Biogas is one of the new and clean energies, whic Full Text
      Energy consumption is increasing rapidly in the world and it is expected that unrenewable energy sources will expire in the future; therefore, new methods of energy production are becoming more common all over the world. Biogas is one of the new and clean energies, which is produced from anaerobic fermentation of biomass. Guilan province with 238,000 hectares of paddy lands has significant potential for biogas production from organic residues. In this way, this study was carried out to investigate the process of biogas production from the combination of rice straw and animal waste with the ratios of (0-100), (5-95), (10-90), (15-85), (20-80) respectively in three repetitions. The experiment was performed at mesophilic temperature by anaerobic digestion method in the 1/5 lit bottles. An economic and environmental assessment for replacement of biogas produced in this process with fossil fuels was implemented in the village of Pounel in Guilan Province. The results showed that the ratio of 10% of rice straw had the highest biogas production efficiency and by replacing the biogas, 21 percent will save in fossil fuel consumption. It will also prevent the emission of 328.42 kg of CO2 gas into the atmosphere per year. Manuscript Document

    • Open Access Article

      5 - The Use of Microorganisms In Bioremediation Of Heavy Methals In Soils
      jina tanzadeh mohammad panahandeh
      Issue 1 , Volume 1 , Autumn_Winter 2017
      Bioremediation is an promising and available new technique for removal and recovery of heavy metals in contaminated land and waters. These microorganisms developed Different detoxifying mechanisms such as bioaccumulation, biosorption, biomineralization and biotrans Full Text
      Bioremediation is an promising and available new technique for removal and recovery of heavy metals in contaminated land and waters. These microorganisms developed Different detoxifying mechanisms such as bioaccumulation, biosorption, biomineralization and biotransformation.The food and water we consume are often pulluted very of chemicals and heavy metals, such as gold,copper ,nickel, zinc, cadmium, arsenic, lead, chromium, and mercury that are associated with very diseases.Some studies described microorganism able to bioremediation heavy methas. Among others some of the microorganisms that play great role in bioremediation of heavy metals are Pseudomonas spp ,Corynebacterium spp ,Bacillus spp Arthrobacter spp, Alcaligenes spp, Rhodococcus spp, Flavobacterium spp, Nocardia spp, Azetobacter spp, Methosinus, Phormidium valderium. Manuscript Document

    • Open Access Article

      6 - The application of Oxidation Reduction Potential (ORP) sensor in water and wastewater treatment industries
      seyed ali rahmani nejad
      Issue 1 , Volume 1 , Autumn_Winter 2017
      The Oxidation Reduction Potential (ORP) is applied for controlling the chemical and biological reactions. It means, by the help of ORP the tendency of reactions for occurring in aqueous solution are measured. The ORP measurement has been used in variety of applications Full Text
      The Oxidation Reduction Potential (ORP) is applied for controlling the chemical and biological reactions. It means, by the help of ORP the tendency of reactions for occurring in aqueous solution are measured. The ORP measurement has been used in variety of applications especially, water and wastewater treatment e.g. cyanide detoxification, advanced oxidation processes (production of hydroxyl radicals: fenton), water disinfection and etc. By measuring the ORP during the reaction, the end time of reaction, the required concentration of reactants and optimum conditions be determined. In this study, the use of ORP in most common reactions in water and wastewater industries are investigated. Manuscript Document

    • Open Access Article

      7 - Environmental risk assesssment of construction of caspian port in Anzali free zone by using Integration AHP& TOPSIS
      shamim moghadami niloofar Abedinzade Maryam  Haghighi khomami
      Issue 2 , Volume 2 , Spring_Summer 2017
      Environmental risk assessment is a further step of environmental impact assessment and analyze different aspects of risk, while understanding the Environmental impact zone, the environmental sensitivity of the area affected by special environmental values as well as ana Full Text
      Environmental risk assessment is a further step of environmental impact assessment and analyze different aspects of risk, while understanding the Environmental impact zone, the environmental sensitivity of the area affected by special environmental values as well as analysis and risk assessment district is considered. To accomplish this study first by using of field investigation the activities which leads to risk in construction of Caspian port water front were identified and in order to extract the significant risks the specialists questioner (Delphi) was used. Finally among the identified risks, 10 environmental risks were chosen for prioritizing.After identifying the risks, indicators such as probability, severity of risk and the sensibility of the environment were selected as prioritizing criteria. AHP method and ECPRO 2000 software, for determining the risk probability, for determination the severity of risk scores and the reference texts for determining the values of sensitivity were applied. After determining the indicators, the TOPSIS software was used to risk prioritizing. The results of prioritizing studied risk showed that the highest risk is related to increased turbidity, deformation of substrate and water pollution are with weights 0.938, 0.898 and 0.662 respectively. Manuscript Document

    • Open Access Article

      8 - A review of the assessment and management of the ecological risk of invasive plants
      ساجده مدنی مکرم  روانبخش سنگجویی مریم پناهنده
      Issue 2 , Volume 2 , Spring_Summer 2017
      Due to the increase in human activities, the destructive impact on the environment is not limited to a particular region of the world. Including the destructive impacts are entering non-native plant species around the world that during the 200 years ago with the spread Full Text
      Due to the increase in human activities, the destructive impact on the environment is not limited to a particular region of the world. Including the destructive impacts are entering non-native plant species around the world that during the 200 years ago with the spread of agriculture, increase the exchange of goods, increased human activities as well as increasing environmental destruction, it's increasing. Although only a limited number of non-native species can be invasive, the negative effects of these species on natural and crop communities, human and animal health, and the changing ecosystem characteristics are so high that the research process is constantly expanding in this regard. One of the damages, which has received considerable attention in recent years, is the problem of the introduction of non-native (invasive) plant species into natural ecosystems, but not all non-native species are harmful. Sometimes non-native species are well absorbed by the ecosystem and positioned like native species. But invasive species are species that are not native ecosystems, and their entry causes economic, environmental or human health damage. In this study, the ecological risk assessment of aggressive plants will be provided and suitable strategies for controlling entry and risk reduction will be presented. Manuscript Document

    • Open Access Article

      9 - Use of macro-algae as biomass resource for renewable energy production
      mehran parsa Maryam Pazoki hassan hoveidi
      Issue 2 , Volume 2 , Spring_Summer 2017
      Energy consumption has significantly increased beside of urbanization growth. It may go up so fast that it results in environmental Issues and greater natural resource depletions. Therefore, the use of renewable and clean fuel is considered necessary. Currently, macro-a Full Text
      Energy consumption has significantly increased beside of urbanization growth. It may go up so fast that it results in environmental Issues and greater natural resource depletions. Therefore, the use of renewable and clean fuel is considered necessary. Currently, macro-algae are cultivated in various regions of the world for various industrial and food usages. Macro-algae are known as a specific resource of alternative for energy production due to their biochemical properties such as high level of carbohydrate, lipid and protein. Various biotechnology methods have been developed for energy producing from macro-algae which are divided into two categories: 1) biochemical processes (fermentation, digestion) and 2) thermochemical processes (incineration, pyrolysis, and hydrothermal liquefaction). Depending on the type of methods, the product are categorized under different phases such as solid, liquid and gas. In this study, we will review the methods and studies on the energy production of different species of macroalgae. Manuscript Document

    • Open Access Article

      10 - Environmental Impact Assessment of Steel Plant Construction
      Issue 4 , Volume 3 , Spring_Summer 2018
      Today, steel production and consumption is applied as an important criterion for measuring the degree of countries industrial development. Needing to investment in construction and economic infrastructure in developing countries, their steel production policy is in the Full Text
      Today, steel production and consumption is applied as an important criterion for measuring the degree of countries industrial development. Needing to investment in construction and economic infrastructure in developing countries, their steel production policy is in the direction of producing the various types of structural steel. In this regard, the main object of the studied steel plant construction is creating jobs in the region, reducing imports and contributing to the country's economic development through carbon ingot production with electric arc furnace technology. After assigning the direct study area of the project, the major contaminants arising from the project implementation were investigated in construction and implementation phases and the corrective actions considered to reduce the contaminants effects. In this research, Rapid Assessment method was used for environmental impact assesment that according to the results, among 96 detected impacts, 55.1 percent of the impacts are negative and 44.9 percent are positive that in case of observing the corrective actions before and after the project implementation, its negative impacts will be minimized. Also, it is recommended that after the plant costruction, apply a periodic monitoring of the outlet contaminants every three months. Manuscript Document
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    پژوهشکده محیط زیست جهاددانشگاهی
    Director
    fariborz jamalzad fallah (عضو هیات علمی- رییس سازمان جهاددانشگاهی گیلان)
    Editor in Chief
    Hasan pourbabaei (استاد دانشگاه گیلان)
    Internal Manager
    Editorial Board
    مخدوم makhdoum (استاد دانشگاه تهران) neda soltani (استاد پژوهشکده علوم پایه کاربردی جهاددانشگاهی) asghar kohandel (دانشیار پژوهشکده مطالعات توسعه جهاد دانشگاهی ) abdolreza karbasi (استاد دانشگاه تهران) mahboobeh nazari (دانشیار پژوهشگاه ابن سینا جهاددانشگاهی) saeed naderi (دانشیار دانشگاه گیلان) mohsenq mohammadi (دانشیار دانشگاه گیلان) niloofar Abedinzade (استادیار پژوهشکده محیط زیست جهاددانشگاهی) alireza pendashteh (استادیار دانشگاه گیلان) mohammad panahandeh (استادیار پژوهشکده محیط زیست جهاددانشگاهی) zahra abedi (استادیار دانشگاه علوم و تحقیقات) seyed mohsen nassaj (استادیار جهاددانشگاهی)
    ISSN:2676-3060
    eISSN:2676-3060
    Email
    info.eri@acecr.ac.ir
    Address
    http://journal.eri.acecr.ir/EN/
    Phone
    01333364061-2

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