Asian Journal of Water, Environment and Pollution最新文献_第7页

A Combined Approach for the Treatment of Textile Dye Bath Effluent Using CO2 Gas CO2气体联合处理纺织染料浴废水的研究

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-03-29 DOI: 10.3233/ajw230025

Venkatesan Govindaraj, Kalpana Manoharan, S. Sakthivel, K. Guruchandran, W. Mathew

{"title":"A Combined Approach for the Treatment of Textile Dye Bath Effluent Using CO2 Gas","authors":"Venkatesan Govindaraj, Kalpana Manoharan, S. Sakthivel, K. Guruchandran, W. Mathew","doi":"10.3233/ajw230025","DOIUrl":"https://doi.org/10.3233/ajw230025","url":null,"abstract":"In this study, baking soda extraction from textile dye bath effluent has been investigated. The novel notion of employing amino acid additions to improve the standard Solvay method and thereby boost the efficiency of Na+ recovery has been investigated. Glycine, L-arginine, and L-alanine are three amino acid additions examined for their effect on enhancing Na+ recovery, and the best-suited additive is chosen. The dumping of brackish dye bath effluent, which has a high percentage of sodium chloride, causes textile dye baths from the textile industry. The primary goal was to remove Na+ (sodium) from the effluent using carbon dioxide gas, which has environmental benefits. Carbon dioxide (CO2) is the most common greenhouse gas, trapping heat and raising global temperatures, therefore contributing to climate change. The Solvay process is used to transform Na+ in salty wastewater into a valuable product. The effect of different operating variables such as NH4OH (ammonium hydroxide) concentration, reaction temperature, carbonation time, and carbon dioxide gas flow rate on bicarbonate production was investigated. Maximum sodium recovery of about 68 percent is attained under optimal circumstances. When compared with the regular Solvay process, the modified Solvay method has a greater recovery efficiency (33 percent). Amino acid addition (arginine) improved conversion efficiency while also lowering the process’s ammonia need.","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49033061","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

Evaluation of the Effects of Riparian Population Activities on the Physicochemical Quality of Water in a Mediterranean River: The Inaouene River (Taza, North East Morocco) 河岸种群活动对地中海河流水体理化质量影响的评价:伊纳瓦内河(摩洛哥东北部塔扎)

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-03-29 DOI: 10.3233/ajw230029

F. E. Sghiouer, A. Nahli, H. Bouka, M. Chlaida

{"title":"Evaluation of the Effects of Riparian Population Activities on the Physicochemical Quality of Water in a Mediterranean River: The Inaouene River (Taza, North East Morocco)","authors":"F. E. Sghiouer, A. Nahli, H. Bouka, M. Chlaida","doi":"10.3233/ajw230029","DOIUrl":"https://doi.org/10.3233/ajw230029","url":null,"abstract":"Mediterranean Rivers are often increasingly subjected to stress as a result of riparian population activities. This present study assessed the impact of human activities on the water quality of the Inaouene River in Morocco. For this purpose, water samples were collected from seven sampling stations along the River and analysed. The water of the Inaouene River is characterised by slightly alkaline water pH (7.32-7.59), electrical conductivity (1206.44-3674.14 μS cm-1), very low level of dissolved oxygen (1.98-5.55 mg L-1), BOD5 (45.42-328.7 mg L-1), COD (112.71-468.46 mg L-1). The results classify the Inaouene River’s water in the “moderate to poor” quality range based on Moroccan standards. This water, which is characterised by moderate to severe organic contamination, is also distinguished by a significant allochthone charge from the different riparian urban centres. The multivariate analysis showed a decline in water quality and high amounts of organic matter, nitrogenous and phosphorus in urban centres downstream. Waters from stations located further away from domestic discharge points are less polluted and more oxygenated. Overall, these findings confirmed that the combined effect of anthropogenic activities and the seasonality characteristic of the Inaouene watershed is the main factor that determines water quality.","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49177721","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

Estimation of Air Pollutants Along with Meteorological Parameters and Study of Their Impact on Human Health 大气污染物随气象参数的估算及其对人体健康影响的研究

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-03-29 DOI: 10.3233/ajw230027

Mehraj Uddin Bhat, A. C. Pandey, Mohd. Adil Deva

{"title":"Estimation of Air Pollutants Along with Meteorological Parameters and Study of Their Impact on Human Health","authors":"Mehraj Uddin Bhat, A. C. Pandey, Mohd. Adil Deva","doi":"10.3233/ajw230027","DOIUrl":"https://doi.org/10.3233/ajw230027","url":null,"abstract":"The research studies have shown that air pollution has been well thought-out as the main warning to health globally. It requests the participation of researchers from time to time to address and revive the problem sincerely. In India concentration of air pollutants has become a serious issue. In most Indian cities, the level of air pollutants is above the prescribed level as per the CPCB. Gwalior City of Madhya Pradesh (India) is at the entrance of speedy urbanisation and industrialisation which causes the worsening air quality of the city. As per the reports of 2015, Gwalior is listed among the top polluted city in India. To address this problem an investigation of air pollutant concentration was carried out at three stations in Gwalior. In this study SO2, NO2 and RSPM and SPM were collected over three stations categorised as residential, industrial and commercial and estimation was done by chemical methods. Meteorological parameters like temperature and relative humidity were also recorded during the sampling period. Seasonal variations of these pollutants have been analysed and noted. From the study, the concentrations of the pollutants were observed to be high in summer and winter than in monsoon and post-monsoon seasons. In this study, it was noticed that the RSPM and SPM levels at all selected sites exceed the prescribed limits. While the level of gaseous SO2 and NO2 are observed to remain under prescribed limits. The main objective of this study was to know the quality of air in Gwalior and study its health impacts as the city has been selected as one of the hundred Indian cities that can be developed into a smart city under PM Narendra Modi’s flagship Smart Cities Mission.","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44318376","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

Editorial 社论

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-01-23 DOI: 10.3233/ajw230001

V. Subramanian

引用次数: 0

Iraq Green Buildings Code Effect on Improving Outdoor Thermal Comfort for Residential Complex 伊拉克绿色建筑规范对提高住宅综合体室外热舒适性的影响

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-01-23 DOI: 10.3233/ajw230015

Ahmed Kadhim Hado, S. A. Hassan

{"title":"Iraq Green Buildings Code Effect on Improving Outdoor Thermal Comfort for Residential Complex","authors":"Ahmed Kadhim Hado, S. A. Hassan","doi":"10.3233/ajw230015","DOIUrl":"https://doi.org/10.3233/ajw230015","url":null,"abstract":"Iraq is one of the countries facing a noticeable rise in temperatures caused by climate change in recent decades. This generated an increased feeling of thermal discomfort among humans. Previous studies submitted many research works in the field of outdoor thermal comfort in cities, but the study of the role of the Iraqi green buildings code in improving outdoor thermal comfort for the residential complex was not adequately addressed, especially at the local level, which was the research problem. The research proposes that the adoption of Iraq Green Buildings code will increase outdoor thermal comfort in residential complexes. The Bismayah residential complex in Baghdad was chosen for this study and tested with ENVI-MET 4.4.2 software. The simulation is based on PMV assessments performed before and after the green building code was implemented. It was found that the implementation of green buildings code improved by increasing the percentage of vegetation, trees and water bodies. Also the change in façade materials to light colours, and the type of pavement materials. had a significant role in increased (PMV) during the day by about two degrees from the model before the change.","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45907743","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

Enviro-Health Dimensions of Environment Impact Assessment (EIA) Draft Notification 2020 and COVID-19 Pandemic 2020年环境影响评估（EIA）通知草案的环境健康层面和新冠肺炎大流行

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-01-23 DOI: 10.3233/ajw230007

M. Nomani

{"title":"Enviro-Health Dimensions of Environment Impact Assessment (EIA) Draft Notification 2020 and COVID-19 Pandemic","authors":"M. Nomani","doi":"10.3233/ajw230007","DOIUrl":"https://doi.org/10.3233/ajw230007","url":null,"abstract":"The enviro-health dimensions of the Environment Impact Assessment (EIA) Draft Notification 2020 and the COVID-19 pandemic in India needs dispassionate reading despite its criticism of being medically motivated and relaxing public scrutiny of B2 projects. The EIA law began in 1994 has finished 25 years of its authorisation and work in 2019. The EIA law encouraged excellent administration and ecological equity. The EIA law is in the constant deluge of experimentation, as evident from the 55-time changes and 230 government circulars from 2006-2021. The EIA Notification, 2006, has intensified the disarray and alteration in EIA law arrangement. The salubrious enactment made statutory requirements on the continuous relaxing mode. The worldwide rankings on the working of EIA law in 2020 by Yale University’s Environmental Performance Index positioned India as 168 out of 180 nations. The fundamental qualities of benchmarking contain 32 markers and decade execution patterns. The EIA Notification, 2020 subsumes these concerns by providing public participation, ex-post-facto clearances, and speedy authorisations of environmental projects. The EIA law gets promissory to ecological improvement, contamination control standards and health protection.","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46164731","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

Reduction of Chromium in Waste Water From Hard Chrome Plating Processes: A Review 镀硬铬废水中铬的还原研究进展

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-01-23 DOI: 10.3233/ajw230008

R. Basavaraja, O. Rahul, M. Ranganatha, K. Suhas, K. Vishnumurthy

引用次数: 0

Assessment of Seven Conventional Natural Drinking Water Sources in the Periphery of Chamba Town of Himachal Pradesh in India 印度喜马偕尔邦昌巴镇周边7个常规天然饮用水源评价

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-01-23 DOI: 10.3233/ajw230013

T. Singh, H. Pal

{"title":"Assessment of Seven Conventional Natural Drinking Water Sources in the Periphery of Chamba Town of Himachal Pradesh in India","authors":"T. Singh, H. Pal","doi":"10.3233/ajw230013","DOIUrl":"https://doi.org/10.3233/ajw230013","url":null,"abstract":"Chamba town of Himachal Pradesh in India is renowned for its conventional natural underground drains, springs and well water sources known as Panihar, Nara and Boury in the local dialect. These are the major traditional freshwater sources for human consumption in the valley. Water is one of the most essential natural sources required for the survival of human beings. But the quality of water in these natural sources is deteriorating day by day due to the universal impact of climate change and the increasing pollutant load of unplanned human activities. The deterioration of natural water sources is a major concern to human well-being all around the world. Therefore, a study was designed for the assessment of the quality of drinking water from randomly selected seven major traditional water sources in the periphery of historic Chamba town. This paper consists of the historic importance of these water sources, the perception and perspectives of their users along with qualitative analysis of total dissolved solids, total hardness and metal salts. The qualitative and physiochemical analysis confirms that the quality of water in all these sources is still within the safe limits of drinking water with limited variation in range but requires special attention for their safe guard.","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42775487","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}

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The Utilisation of International Watercourses from an International Environmental Law Perspective 国际环境法视角下的国际水道利用

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-01-23 DOI: 10.3233/ajw230006

Nanik Trihastuti, P. Hananto, D. Kandou

引用次数: 0

Challenges and Prospects of Flood Early Warning Systems: A Study of Narayani Basin 洪水预警系统的挑战与展望——以Narayani盆地为例

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-01-23 DOI: 10.3233/ajw230004

C. Pandey, Anoj Basnet

{"title":"Challenges and Prospects of Flood Early Warning Systems: A Study of Narayani Basin","authors":"C. Pandey, Anoj Basnet","doi":"10.3233/ajw230004","DOIUrl":"https://doi.org/10.3233/ajw230004","url":null,"abstract":"Floods are the most dangerous and detrimental hazards in Nepal. Communities inhabiting the Narayani basin are getting affected by floods every year. However, no studies have been conducted to analyze the existing early warning system’s functional capacity and community feedback. Literature on disasters and calamities indicates that an efficient and effective flood early warning system is crucial for making communities flood resilient but we note that unless ‘community capacity for response’ is also strengthened, early warning technology alone cannot protect against losses and damages. Employing a qualitative approach, we explored the existing status of a community-based flood early warning system, and the challenges and prospects of these technologies for building flood-resilient communities in the Narayani basin of Nepal. We found that the existing warning system in the basin is fragmented, unreliable and cannot contribute to building flood-resilient communities. This study concludes that making communities flood resilient, at least, needs five components inclusive of the installation of more reliable early warning technologies; promotion of community-based early warning systems; timely communication of early warning alerts; training on preparedness and response; flood and climate-proof livelihood options.","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":"26 18","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41273040","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