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  • About Journal

    The Journal of Environmental Research and Technology is the scientific journal of the University Jihad Environmental Research Institute. This publication was first started in 2004 with the permission of the Ministry of Culture and Islamic Guidance and the Jihad University Publications Council under the title "Environment".

    And then from 2016 with the change of name as "Environmental Research and Technology" continues its activities and Scientific articles in various fields of the environment for acceptance and publication.


    Latest published articles

    • Open Access Article

      1 - Feasibility Study of Denitrification of Drinking Water Using Photocatalytic Substrate over Ultra-High Performance Concrete
      Sama Tajasosi Jalil Barandoust Ramazan Vagheei Fariba Ostovar saeed poorkareem
      Issue 10 , Volume 6 , Autumn_Winter 2022
      Denitrification of drinking water has a research history of more than three decades in the field of water treatment and is still the subject of many research projects. The main purpose of this study is to obtain or modify methods for removing nitrate from drinking water Full Text
      Denitrification of drinking water has a research history of more than three decades in the field of water treatment and is still the subject of many research projects. The main purpose of this study is to obtain or modify methods for removing nitrate from drinking water in an economic way and force minimal adverse effects on the environment. The use of photocatalytic process for denitrification is not new, but there are still many ambiguities. In this study, the feasibility of using two different photocatalysts over the ultra-high performance concrete (UHPC) substrate was discussed. This new substrate is fabricated by immobilizing the photocatalyst inside a cement matrix which acts as an active layer over the UHPC surface. Optimum long-term lifecycle and higher efficiency of this active surface is achieved without a significant drop of the photocatalyst activity near the surface. In this study, the possibility of using photocatalytic composite layers over the elements made of UHPC for applications such as water supply channels was evaluated and the challenges of using such layers on UHPC surfaces were described. According to the studies, it was found that the use of fixed cement composite bed for photocatalytic treatment has advantages over other methods of photocatalytic water treatment. Manuscript Document

    • Open Access Article

      2 - Comparative Analysis of laws related to land Use in the Framework of Multilevel Climatic Governance (Case Study: Qazvin Urban Region)
      mostafa momeni naser barakpour
      Issue 10 , Volume 6 , Autumn_Winter 2022
      Urbanization and climate change are two global phenomena and are inherently correlated. Land use, as one of the most important factors in this field, affects climate change in various ways. One way to manage this issue is to use multilevel climate governance, which prov Full Text
      Urbanization and climate change are two global phenomena and are inherently correlated. Land use, as one of the most important factors in this field, affects climate change in various ways. One way to manage this issue is to use multilevel climate governance, which provides a flexible conceptual framework for understanding the relationship between cities, regions, and national governments related to mitigation and adaptation strategies. The purpose of this study was to evaluate the laws related to land use according to the criteria of the governing by authority in the framework of multilevel climate governance in Qazvin urban region. In this study, the method of documentary research and the technique of systematic review of texts and in order to comply with the criteria of the governing by authority and legal materials in the laws and regulations, the comparative-analytical method has been used. In this way, 10 laws regarding the existence of legal articles were evaluated, in which local government officials have been given authority in the field of land use planning. The results of the study indicate that ther are different challenges such as the impact of policies and strategies of development documents on decisions, differences between decisions and upstream documents, differences in the type of reference review and licensing, legal gaps in related laws and inconsistencies in implementation in the field of land use planning in Qazvin urban region, and some decisions are based on less delegated authority at the local level, and the resulting actions are more vulnerable. Manuscript Document

    • Open Access Article

      3 - Evaluation of spatial pattern of functional distribution of settlements in Zebarkhan rural area (During the period 1375-1398)
      Nasibe Hosseini Hasan Afrakhteh Farhad Azizpour
      Issue 10 , Volume 6 , Autumn_Winter 2022
      In this regard, with the aim of studying the rural spatial organization, the present study seeks to first determine and form a hierarchy of settlements that can be an effective framework for the distribution of services and functions at different levels, and finally the Full Text
      In this regard, with the aim of studying the rural spatial organization, the present study seeks to first determine and form a hierarchy of settlements that can be an effective framework for the distribution of services and functions at different levels, and finally the prevailing spatial pattern in Identify the area. Therefore, in order to achieve the objectives of the research, using the centrality index and applying 35 variables, the studied settlements were classified at different functional levels (5 levels). It is noteworthy that the present study is applied in terms of purpose and based on descriptive-analytical method. The method of data collection is due to the nature of library and field research. Geographical territory of research is Zebarkhan village of Neishabour city. The findings of the study indicate that the lack of proper distribution of services and lack of spatial balance has increased mobility and movement between human settlements in the countryside. Hence, the two settlements of Ghadamgah, Darrud, have become the main places of intra-district traffic with the first ranks. Meanwhile, the villages of Bazhidar, Aliabad, Cheshmeh Khosrow, Mohammadabad, Qaredash, Qarebeik and Kalateh Lavidani are at the lowest level of development (deprived) and lack the minimum services and facilities.The results indicate that the pattern of flows is one-way relationships and no complementary, two-way and synergistic relationships are formed. Manuscript Document

    • Open Access Article

      4 - Analysis of factors affecting the development of tourism demand based on ecotourism in rural areas of Guilan
      Farhad Javan Naimabadi Nazanin
      Issue 10 , Volume 6 , Autumn_Winter 2022
      The present study investigates the factors affecting the development of tourism demand based on ecotourism in rural areas of Gilan. The research method is analytical and the purpose of the research is practical. In order to analyze the data, SPSS software and FARAS mode Full Text
      The present study investigates the factors affecting the development of tourism demand based on ecotourism in rural areas of Gilan. The research method is analytical and the purpose of the research is practical. In order to analyze the data, SPSS software and FARAS model were used. The results of the exploratory analysis model showed that in the physical factor, the sub-criterion (existence of beautiful and unique landscapes) had the highest percentage of effect and the criterion (suitability of recreational and sports equipment) had the least effect, in the economic factor, the sub-criterion (cheapness) Travel to the villages of Gilan) the most impact and and sub-criteria (reasonable prices of welfare accommodations and tourist suites) have the least impact, finally the social factor, sub-criteria (attractive lifestyle of the people of Gilan village for tourists) the most impact and Sub-criteria (level of awareness and education of rural residents towards tourists) has the least impact on the development of ecotourism demand in rural areas of Gilan. The results of the gray Aras model showed that the physical dimension with weight (0.590), the social and cultural dimension with weight (0.542), the economic dimension with weight (0.389), the highest and the lowest, respectively. They have the highest rankings. Manuscript Document

    • Open Access Article

      5 - Investigation of Diameter and Height Growth of Willow and Alder in biologically stabilized areas of forest road landslide (Surdar-Watashan series 3 district, Chamestan, Mazandaran)
      Seyed Ata Ollah  Hosseini
      Issue 10 , Volume 6 , Autumn_Winter 2022
      The aim of this study was to evaluate the diameter and height growth of two native species of alder (Alnus glutinosa L. Gaertn.) and willow (Salix alba L.) planted in three treatments including natural mulches of straw, wood chips and bare soil without mulch (as control Full Text
      The aim of this study was to evaluate the diameter and height growth of two native species of alder (Alnus glutinosa L. Gaertn.) and willow (Salix alba L.) planted in three treatments including natural mulches of straw, wood chips and bare soil without mulch (as control) treatments. The design of the experiments was in the form of split plots and in the form of completely random blocks located in Chamestan, Mazandaran. The results showed that the regression relationships between diameter and height in alder species were better than those of willow species completely randomly. The study area was in parcels 5 of series 3 district of Surdar -Watashan forestry plan in watershed 49 of forests in the north of the country. The regression coefficient for the independent variable of diameter and dependent variable of height was 0.65 in alder and 0.42 in willow. The results showed that the regression relationship between diameter and height in alder was better than willow species. According to the results of variance analysis, the blocks and treatments did not have a statistically significant difference. The wood chips treatment created the best situation, and after that, the straw treatment and finally the control treatment (bare soil) had a more unfavorable situation than the other treatments. Finally, alder had more favorable conditions for adaptation to the applied bioengineering conditions of the present study vs. willow. Manuscript Document

    • Open Access Article

      6 - Investigating the managerial performance of tourism complexes by reviewing socio-cultural components (Case study: Kermanshah Tourism Complex)
      mohammad ghasemisiani
      Issue 10 , Volume 6 , Autumn_Winter 2022
      Today, tourism is one of the largest industries in the world and depends on a major part of the global economy; Tourism is economically, socio-culturally and environmentally integrated with the lives of people and governments. The purpose of this study is to investigat Full Text
      Today, tourism is one of the largest industries in the world and depends on a major part of the global economy; Tourism is economically, socio-culturally and environmentally integrated with the lives of people and governments. The purpose of this study is to investigate the managerial performance of tourism complexes and present a strategic proposal with emphasis on socio-cultural components in Kermanshah tourism complex. This article examines the managerial performance in four tourism complexes, Rakhsh, Nesar, Nodsheh and Sefid Barg in Kermanshah province. And how can focusing on these components provide successful and appropriate management for the Kermanshah Jihad University tourism complex? This research was conducted using field survey and questionnaire tools presented to 152 people in Kermanshah tourism managers. The results showed that the components of reviving cultural identity and sense of national pride, promoting the culture of tourist reception and retention are ranked first, second and third among all the identified components affecting the managerial performance of tourism complexes, respectively. Accordingly, the emphasis on cultural identity and the necessary training to the managers of the complexes to create a culture of tourist reception has a significant impact on attracting tourists to the tourist complexes of the province. Manuscript Document
    Most Viewed Articles

    • 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 - Investigation of Congored dye removal from industrial waste water using adsorption method
      Mohadeseh Tavakoli niloofar Abedinzade
      Issue 6 , Volume 4 , Autumn_Winter 2020
      These 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 Full Text
      These 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 Document

    • Open Access Article

      3 - 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 Agmashhadi
      Issue 6 , Volume 4 , Autumn_Winter 2020
      The 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 Full Text
      The 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 Document

    • Open Access Article

      4 - Environmental and Technical Assessment of Biogas Production using Rice Straw
      Mahsa Khodabakhshi pour mohsenq mohammadi 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 - 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

      6 - The Investigation of Ability to Degradation and Removal of Various Dyes Using Silver Colloidal Nanoparticles
      Mohadeseh Tavakoli Fariba Ostovar
      Issue 4 , Volume 3 , Spring_Summer 2018
      Colors 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 Full Text
      Colors 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 Document

    • Open Access Article

      7 - A review of the assessment and management of the ecological risk of invasive plants
      ساجده مدنی mokarram ravanbakhsh 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

      8 - Application of Drastic Model in the Studying Process of Industrial Development of Sari Plain
      mohammad rahmani tahere azari
      Issue 6 , Volume 4 , Autumn_Winter 2020
      New 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 Full Text
      New 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 Document

    • Open Access Article

      9 - 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

      10 - The Study of Environmental Impacts of Pistachio Production Using Life Cycle Assessment, (Case Study: Rafsanjan City)
      Maryam Rajaei Mohammad Reza Elmi Mahin Malekian
      Issue 6 , Volume 4 , Autumn_Winter 2020
      Life 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, Full Text
      Life 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 Document
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    Number of Issues 6
    Count of Volumes 11
    Printed Articles 94
    Number of Authors 304
    Article Views 177255
    Article Downloads 37837
    Number of Submitted Articles 185
    Number of Rejected Articles 23
    Number of Accepted Articles 109
    Acceptance 58 %
    Admission Time(Day) 93
    Reviewer Count 145
    Last Update 1/26/2022