Journal of Advances in Environmental Health Research最新文献_第8页

From Environmental Accounting to Integrated Reporting: Towards a New Approach to Environmental Disclosure 从环境会计到综合报告:环境信息披露的新途径

Journal of Advances in Environmental Health Research Pub Date : 2021-09-22 DOI: 10.22102/JAEHR.2021.287626.1222

Yaser Abbasabadi, R. Tehrani, M. Janani

{"title":"From Environmental Accounting to Integrated Reporting: Towards a New Approach to Environmental Disclosure","authors":"Yaser Abbasabadi, R. Tehrani, M. Janani","doi":"10.22102/JAEHR.2021.287626.1222","DOIUrl":"https://doi.org/10.22102/JAEHR.2021.287626.1222","url":null,"abstract":"To pay attention to environmental issues and problems in today’s modern economy, especially in academia, is a valuable orientation. Cooperation between related organizations about environmental issues is now more important than before. It has covered environmental reporting in several complementary stages. In addition, it has established its new reporting based on the field of environmental disclosure. The latest version of reporting is the integrated reporting, which is the most important environmental disclosure. Usually, any new version on any topic should cover the limitations of the previous version. This paper is a review study. In this study, environmental accounting and its limitations are first explained. Integrated reporting is then discussed as the newest type of financial and non-financial reporting. Finally, the possibility of covering the environmental accounting constraints is examined through integrated reporting. The results showed that the transparency in environmental accounting figures, democratization and information linkages are likely to be achieved through the implementation of integrated reporting. Therefore, it will be effective in covering the limitations of environmental accounting.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73692444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of Hippuric Acid and Methyl Hippuric Acid Isomers in the Urine of Ahvaz Gas Stations Workers using HPLC-UV HPLC-UV法测定阿瓦士加油站工作人员尿液中马尿酸及马尿酸甲基异构体的含量

Journal of Advances in Environmental Health Research Pub Date : 2021-07-20 DOI: 10.22102/JAEHR.2021.276431.1214

S. M. Ebrahimi, Zahra Nazari-Khorasgani, H. Kalantari, H. Motamed

{"title":"Determination of Hippuric Acid and Methyl Hippuric Acid Isomers in the Urine of Ahvaz Gas Stations Workers using HPLC-UV","authors":"S. M. Ebrahimi, Zahra Nazari-Khorasgani, H. Kalantari, H. Motamed","doi":"10.22102/JAEHR.2021.276431.1214","DOIUrl":"https://doi.org/10.22102/JAEHR.2021.276431.1214","url":null,"abstract":"The purpose of this study was to determine the concentration levels of hippuric acid and 2, 3, 4- methyl hippuric acid isomers as biological indicators of exposure to toluene and xylene isomers in the urine of the gas stations workers of Ahvaz, Iran. The urine sample was taken the first time in January and the second time in June. The mean concentration of hippuric acid, 2, 3 and 4- methyl hippuric acid in the investigated urine of the workers were 0.245, 0.017, 0.012, and 0.101g/g creatinine, respectively. There was no relationship between variable of season and levels of hippuric acid, 2, 3 and 4- methyl hippuric acid in the urine of exposed and control groups. There was no significant difference in the analyzed results of urine samples between control and exposure groups. There was at least one methyl hippuric acid isomer, indicating that all subjects were exposed to xylene, which was lower than the threshold limit value. In conclusion, the variable of season cannot cause a significant change in the metabolites of toluene and xylene isomers. Exposure of workers to toluene and xylene at gas stations are within acceptable limits.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81975389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of groundwater quality in Jajrood basin, Tehran, Iran: A coupled physicochemical and hydrogeochemical study 伊朗德黑兰Jajrood盆地地下水质量评价:物理化学和水文地球化学的耦合研究

Journal of Advances in Environmental Health Research Pub Date : 2021-07-01 DOI: 10.22102/JAEHR.2021.285306.1221

Maeyan Givi, Mahsa Jahangiri-rad, H. Tashauoei

{"title":"Assessment of groundwater quality in Jajrood basin, Tehran, Iran: A coupled physicochemical and hydrogeochemical study","authors":"Maeyan Givi, Mahsa Jahangiri-rad, H. Tashauoei","doi":"10.22102/JAEHR.2021.285306.1221","DOIUrl":"https://doi.org/10.22102/JAEHR.2021.285306.1221","url":null,"abstract":"The physicochemical composition of groundwater are affected by the quantity and quality of surrounding aquifers which are in turn recharging from adjacent river waters. In the present study, 20 surface and 16 groundwater samples were collected in pre- and post-monsoon seasons from Jajrood river basin, Tehran, Iran. The samples were analyzed for totally 18 physicochemical water quality characteristics to assess the river and groundwater qualities. Hydrogeochemical analyses of groundwater samples were also performed to determine the water quality index (WQI) for drinking use and to evaluate factors governing the water quality characteristic in the study area. Accordingly, Piper diagram as well as Gibbs and Chadha’s plots were applied to assess seasonal variations in hydrochemical facies and to evolve the hydrochemical processes in the basin. Sub – surface soil samples were also examined with respect to the structure, elemental composition and multi- elemental trace analysis. Results showed the abundance of major ions in the order of Ca+2 > Na+ > Mg+2 > K+, and HCO3- > SO42- > Cl- > NO3- > F-. In general, all drinking groundwater samples met WHO permissible limits except for chemical oxygen demand (COD) and HCO3-. Moreover, the water is categorized as Ca-Mg-HCO3 type. Sub surface soil analyses demonstrated quartz and calcium carbonate as the main phases of soil structure suggesting the enrichment of groundwater with temporary hardness. Overall, the groundwater quality was suitable for drinking uses and agricultural activities.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72856108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Survey of health index, with emphasis on estimation life expectancy in rural areas, Kurdistan province 健康指数调查，重点是估计库尔德斯坦省农村地区的预期寿命

Journal of Advances in Environmental Health Research Pub Date : 2021-07-01 DOI: 10.22102/JAEHR.2021.244233.1180

Rahmatoolah Bahrami, K. Noori

{"title":"Survey of health index, with emphasis on estimation life expectancy in rural areas, Kurdistan province","authors":"Rahmatoolah Bahrami, K. Noori","doi":"10.22102/JAEHR.2021.244233.1180","DOIUrl":"https://doi.org/10.22102/JAEHR.2021.244233.1180","url":null,"abstract":"Life expectancy at birth is one of the most important indicators of the social, economic, cultural and health status of any society. The aim of this study was to calculate life expectancy by gender in rural areas of Kurdistan province. This study as descriptive epidemiological project was aim to explore the life expectancy in rural area of Kurdistan.Data was collected directly using mortality information (statistics available in the health center of Kurdistan province and the registered population in 2013. The findings showed that life expectancy is not the same in rural areas of Kurdistan province. Life expectancy at birth for men and women in rural areas of the province is estimated at 70.6 years. Life expectancy is 72 years for women and 69.3 years for men. The highest life expectancy of men is in Saqez city with 70.9 and the lowest in Dehgolan city with 67.6 years. The highest life expectancy is estimated in rural women with 74 years in Baneh city and the lowest in Divandere city with 69.4 years. Life expectancy results showed inequality in terms of gender and at the level of rural areas of Kurdistan province. Comparatively, the results showed that the national average life expectancy in rural areas of Iran is more than 2 years higher than rural areas of Kurdistan province. Therefore, it is necessary to improve the level of life expectancy in rural areas of Kurdistan province, fair distribution of facilities and services to villages, the second is to prioritize rural areas based on health services.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76488007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Study of the Relationship Between Landscape Structure and Psychic Components on Temperature Assessment of Users of Urban Open Spaces Around Kroon River in Ahvaz: A Case Study 阿瓦士克鲁雍河周边城市开放空间用户温度评价的景观结构与心理成分关系研究——以该区为例

Journal of Advances in Environmental Health Research Pub Date : 2021-06-29 DOI: 10.22102/JAEHR.2021.289805.1225

Katayoun Afshon, M. Taban, Mostafa Masoudinejad, R. J. Yengejeh

{"title":"A Study of the Relationship Between Landscape Structure and Psychic Components on Temperature Assessment of Users of Urban Open Spaces Around Kroon River in Ahvaz: A Case Study","authors":"Katayoun Afshon, M. Taban, Mostafa Masoudinejad, R. J. Yengejeh","doi":"10.22102/JAEHR.2021.289805.1225","DOIUrl":"https://doi.org/10.22102/JAEHR.2021.289805.1225","url":null,"abstract":"Structure of the urban open spaces and the effect it imposes on the body and mental health increases the importance of attention to the quality of such places. The thermal comfort is the environmental factors affecting the reactive behavior of people in urban open spaces. In the present study, aiming at investigating the relationship between psychic components and landscape structure and its effect on the thermal assessment of individuals, three methods are used; the descriptive method for explaining the psychic components and landscape structure as well as the survey method for determining the relation and correlation between research variables along with the experimental method for testing the variables using certain tools. Thermal analysis done by computer simulation method in ENVI-met software in the Karoon river area in Ahvaz city. The index used for assessing the thermal comfort is UTCI. In order to find the relationship between the research variables, the field data collections were accomplished by arranging questionnaires and in a random way by Cochran formula. The findings demonstrated the existence of a relationship between landscape structure and different psychic states in individuals. In fact, the moods of the individuals in open spaces affect their landscape qualification and thermal assessment. Eventually, and based on the findings of the study, it could be stated that the mental condition and psychic state of the individuals in different situations has definitely affected their qualification of the landscape structure, landscape quality as well as their reactive behavior while it would overshadow their thermal assessment.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"374 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76427656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing the environmental and health adverse effects of mercury released from dental amalgam: A Literature review 评估牙科汞合金释放的汞对环境和健康的不利影响:文献综述

Journal of Advances in Environmental Health Research Pub Date : 2021-04-01 DOI: 10.22102/JAEHR.2021.275146.1212

Reyhaneh Aftabi, P. Jafari, Marzieh Pirzadeh-Ashraf

{"title":"Assessing the environmental and health adverse effects of mercury released from dental amalgam: A Literature review","authors":"Reyhaneh Aftabi, P. Jafari, Marzieh Pirzadeh-Ashraf","doi":"10.22102/JAEHR.2021.275146.1212","DOIUrl":"https://doi.org/10.22102/JAEHR.2021.275146.1212","url":null,"abstract":"This paper reviews the most available data on the possible adverse effects of mercury released from amalgam that comprises of 50 % pure mercury, 35 % silver, 12-13 % tin, 2 % copper and to up1 % zinc, indium, platinum and palladium. Despite the possible health risks of mercury from amalgam on the nervous, respiratory, renal, and endocrine systems, it is however, used in some countries, even though Sweden, Denmark, Canada, the United States and Japan have long banned the use of amalgam. Amalgam restorations are one of the main mercury-releasing sources (1800-2700 tons per year) of contamination. During chewing, grinding, brushing of teeth, breaking down of amalgam and as the temperature of the oral environment increases mercury vapor will be released. The mercury vapor enters atmosphere, wastewater in dental offices, all systemic organs, especially the lower respiratory tract, can affect the renal-urinary system or enters breast milk, fetus and finally transmits to infants. The mercury level released from amalgam in blood, urine, hair and nail of large populations of dentists, dental assistants and pregnant women is higher than the safe levels. The main neurological and psychological effects of mercury vapor include in the form of sleep disorders, amnesia, mental disorders, hair loss, memory disturbances, multiple sclerosis, Parkinson's, kidney diseases, gene-toxicity, Alzheimer, Autism, skin allergies-cancer, infertility, low-birth-weight infants and heart diseases. In order to avoid further amalgam risks to the dentists, dental assistants, pregnant women and wildlife ecosystem, it is suggested to replace the dental amalgam by composite resins.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"12 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78316332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficiency of multi-media filtration in drinking water treatment plants for the removal of natural organic matter 饮用水处理厂介质过滤去除天然有机物的效率

Journal of Advances in Environmental Health Research Pub Date : 2021-04-01 DOI: 10.22102/JAEHR.2021.277080.1215

Behnam Kazemi Noredinvand, A. Takdastan, R. J. Yengejeh, F. Ghanbari

{"title":"Efficiency of multi-media filtration in drinking water treatment plants for the removal of natural organic matter","authors":"Behnam Kazemi Noredinvand, A. Takdastan, R. J. Yengejeh, F. Ghanbari","doi":"10.22102/JAEHR.2021.277080.1215","DOIUrl":"https://doi.org/10.22102/JAEHR.2021.277080.1215","url":null,"abstract":"The filtration is a processing unit in a Drinking Water Treatment Plant (DWTP) that is used to remove particles from the water. This study is the result of pilot-scale research on Gravity Rapid Sand Filter (GRSF). The purpose of this paper is to evaluate the performance of the Triple Media Filter (TMF) (Granular Activated Carbon (GAC) + anthracite + garnet) and Dual-Media Filter (DMF) (anthracite + sand) in the removal of Natural Organic Matter (NOM) as a precursor of trihalomethanes (THMs) and chlorination Disinfection by Products (DBPs). As well as filtration rate performed at conventional (120 m/d) and a high rate (240 m/d), and compared with full-sized Single Media Filter (SMF) with a sand media. The removal efficiency of Turbidity, Color, UV absorption at a wavelength of 254nm (UV254), and Dissolved Organic Carbon (DOC) parameters were investigated. Besides, the Specific Ultraviolet Absorbance (SUVA) was calculated from the ratio of UV254 to DOC. The results showed that the Multimedia Filter (MMF) at 120 and 240 m/d filtration rate had higher removal efficiency compared to a control SMF in removing measured parameters (p-value <0.05). Also, similar filters, have shown the same efficiency relative to each other in different loading rates and there was an insignificant difference. MMF can significantly remove organic pollutants and control the formation of DBPs during water treatment. The study suggests that SMF should be replaced with MMF to improve water quality.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73756959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Isothermal and kinetic evaluation of adsorption of organic pollutants from fish farm effluents (Aq Qala, Golestan province, Iran) by Nano composites (chitosan and activated carbon) 纳米复合材料(壳聚糖-活性炭)吸附伊朗古勒斯坦省Aq Qala鱼场废水中有机污染物的等温及动力学评价

Journal of Advances in Environmental Health Research Pub Date : 2021-04-01 DOI: 10.22102/JAEHR.2021.254000.1196

H. Rezaei, S. Rastegar, Seyyed Aliakbar Hedayati, Yousef Dadban-Shahamat, Omid Sedaghat

{"title":"Isothermal and kinetic evaluation of adsorption of organic pollutants from fish farm effluents (Aq Qala, Golestan province, Iran) by Nano composites (chitosan and activated carbon)","authors":"H. Rezaei, S. Rastegar, Seyyed Aliakbar Hedayati, Yousef Dadban-Shahamat, Omid Sedaghat","doi":"10.22102/JAEHR.2021.254000.1196","DOIUrl":"https://doi.org/10.22102/JAEHR.2021.254000.1196","url":null,"abstract":"The purpose of present study was to study absorbent ability of organic pollutants from warm water fish farms by synthesized nano-composite adsorbent. study was performed at different physicochemical condition of pH (5-8), effluent concentration (25-100 mg/L), contact time (15-90) minutes. Adsorption isotherm studies were analyzed using Freundlich, Langmuir models and adsorption kinetics studies using pseudo-first-order and pseudo-second-order kinetic models. The Langmuir and Freundlich isotherms, first and second order adsorption kinetics were investigated. The Langmuir and Freundlich isotherms for nitrite (R2 = 0.9076, R2 = 0.5911), phosphate (R2= 0.9307, R2= 0.5755) and ammonia (R2 = 0.7288 and R2 = 0.7549), respectively obtained. According to the results, the data of nitrite and phosphate pollutants were more consistent with the Langmuir model, but the data of ammonia pollutants were more consistent with the Freundlich model. According to the results, the adsorption of phosphate pollutants was more consistent with pseudo-first order kinetic model and the adsorption of nitrite and ammonia pollutants was more consistent with the pseudo-second order kinetic model.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86986318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Used Batteries in the Municipal Solid Waste Stream: Management of the Challenges and Heavy Metal Contents 城市固体废物流中的废旧电池:挑战和重金属含量的管理

Journal of Advances in Environmental Health Research Pub Date : 2021-04-01 DOI: 10.32598/jaehr.9.2.1176

H. Aslani, Saleh Mohammadi, H. Taghipour, Mahmoud Ravosh

{"title":"Used Batteries in the Municipal Solid Waste Stream: Management of the Challenges and Heavy Metal Contents","authors":"H. Aslani, Saleh Mohammadi, H. Taghipour, Mahmoud Ravosh","doi":"10.32598/jaehr.9.2.1176","DOIUrl":"https://doi.org/10.32598/jaehr.9.2.1176","url":null,"abstract":"Background: Hazardous materials, such as used batteries contain heavy metals and enter the solid waste stream, ending up in landfills. The present study was done to determine the amount of used batteries in Iran and their heavy metal contents in the batteries entering the landfill site in Tabriz. Methods: A questionnaire was applied to assess the current management condition of the used batteries in Tabriz and Ardabil as the representative cities of the entire country. The heavy metal content of 15 AA-sized batteries was determined by inductively coupled plasma. Results: Our findings showed that 14.7% of the used batteries in Iran have been imported, and approximately 76% and 24% of the batteries analyzed at the landfill site were AA-sized and cellphone batteries, respectively. In 60% of the studied batteries, the total heavy metal content was less than 100 mg/kg. Conclusion: The results of this study could be a useful reference for global and local policymakers in developing effective regulations for the use of cleaner materials in the battery industry and controlling the used batteries from their generation to the end of the battery life","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87946792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Removal of Ni(II) and Cr(VI) Ions From Electroplating Wastewater Using Ferrous Sulfate 硫酸亚铁去除电镀废水中的Ni(II)和Cr(VI)离子

Journal of Advances in Environmental Health Research Pub Date : 2021-04-01 DOI: 10.32598/jaehr.9.2.1203

Sheida Akar, B. Lorestani, S. Sobhanardakani, M. Cheraghi, O. Moradi

{"title":"Removal of Ni(II) and Cr(VI) Ions From Electroplating Wastewater Using Ferrous Sulfate","authors":"Sheida Akar, B. Lorestani, S. Sobhanardakani, M. Cheraghi, O. Moradi","doi":"10.32598/jaehr.9.2.1203","DOIUrl":"https://doi.org/10.32598/jaehr.9.2.1203","url":null,"abstract":"Background: In this study, the ferrous sulfate was used to remove Cr(VI) and Ni(II) ions from a real Ni-Cr plating industry wastewater. Methods: This is an applied study. The type of sampling was composite by three 5 L containers. Wastewater chemical and physical characteristics were measured in accordance with the standard methods. The concentration of un-removed metal ions was estimated by ICP-OES. The Jar test was used to carry out the chemical coagulation experiment. The results indicated that the rate of removal depended on the pH of 1.5-11, the diverse contact time of 30-120 min, and the coagulant measurement ranging from 0.5-2 g/l. Results: The optimum removal of Cr(VI) ions was observed at a pH of 7 up to 83.88% in 0.5 g/l of coagulant for 40 min. While the optimum removal of Ni(II) ions was found at a pH of 5 up to 56.33 % in 0.5 g/l of coagulant for 40 min. The scanning electron microscopy results revealed the difference between the coagulant surface while coagulation. Also, the Energy-Dispersive X-ray spectroscopy (EDX) analysis showed the presence of Cr(VI) and Ni(II) ions on the surface of the ferrous sulfate after coagulation. Conclusion: Ultimately, the results indicated that ferrous sulfate could be an operative chemical coagulant to remove Cr(VI) and Ni(II) ions from the plating industry wastewater, especially for Cr(VI) particles. The results of this study can be a useful guide to the real plating industry wastewater treatment operators.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72904884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0