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

Evaluation of Groundwater Suitability for Drinking Purposes Using GIS and WQI in Chikkaballapura Taluk, Karnataka, India 利用地理信息系统和水质指数评估印度卡纳塔克邦 Chikkaballapura Taluk 的地下水是否适于饮用

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-11-27 DOI: 10.3233/ajw230075

Sridhara Malur Krishnappa, Sadashivaiah Channabasavaiah, Kiran Dasalukunte Ananda

{"title":"Evaluation of Groundwater Suitability for Drinking Purposes Using GIS and WQI in Chikkaballapura Taluk, Karnataka, India","authors":"Sridhara Malur Krishnappa, Sadashivaiah Channabasavaiah, Kiran Dasalukunte Ananda","doi":"10.3233/ajw230075","DOIUrl":"https://doi.org/10.3233/ajw230075","url":null,"abstract":"In the present study, groundwater samples were analysed to determine the suitability of groundwater for drinking use in Chikkaballapura taluk (CBT) in 2019. The tests were conducted on the groundwater twice a year, during the pre-monsoon and post-monsoon seasons. The results of 12 physico chemical parameters were used for the calculation of the water quality index (WQI). ArcGIS was used in the study to plot the spatial variation of chloride, nitrate, and fluoride. In urban areas, WQI ranged from 42.94 to 204 during the pre-monsoon season and from 62.67 to 153.93 during the post-monsoon season. Similarly, in rural areas, WQI ranged from 47.78 to 245.98 during the pre-monsoon season and from 35.92 to 405.63 during the post-monsoon season. The results of the WQI show that most samples fall into poor water categories according to the quality rating scale. Also, the results revealed that both in Chikkaballapura rural (CBR) and Chikkaballapura urban (CBU), most of the groundwater samples exceeded the drinking water quality limits during the pre-monsoon season when compared to the post-monsoon season. High levels of fluoride were found in Thippanahalli, Doddapailagurki, Poshettihalli, Kuppahalli, Mandikal and Ajjivara grama panchayaths and a significantly high concentration of nitrate was found in Addagallu and Manchanabele grama panchayaths during the pre-monsoon season in CBR. It was suggested that constant monitoring of groundwater quality in contaminated areas be carried out to prevent further deterioration and related problems and that rainwater harvesting practices be encouraged to help reduce the load on urban and rural water supply systems.","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139231196","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

Utilisation of Clamshell Waste for Removing Mercury From Water: Fixed Bed Adsorption and Modelling Studies 利用蛤壳废料去除水中的汞：固定床吸附和模型研究

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-11-27 DOI: 10.3233/ajw230082

S. Baskar, K.R. Aswin Sidhaarth, L. Mangaleshwaran

引用次数: 0

Heavy Metal Contamination of Medicinal Plants in India – A Perspective 印度药用植物的重金属污染--透视

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-11-27 DOI: 10.3233/ajw230074

Suman Rani, Rama Sisodia

{"title":"Heavy Metal Contamination of Medicinal Plants in India – A Perspective","authors":"Suman Rani, Rama Sisodia","doi":"10.3233/ajw230074","DOIUrl":"https://doi.org/10.3233/ajw230074","url":null,"abstract":"The presence of heavy metals in medicinal plants (MP) is a matter of serious concern as it directly affects human health. In India, the problem is especially significant since the country is a major consumer as well as exporter of medicinal plant-based raw materials and products. Raw material available in the market is often reported to contain traces of heavy metals and these consequently compromise the quality of medicinal plants-based medicinal formulations. In the present study, the reports of heavy metals in MP from India were collated to ascertain the extent of the problem and highlight the source of contamination. The states with the highest number of metals above permissible limits included Chhattisgarh, Maharashtra, Delhi, Kerala, Karnataka, and Uttar Pradesh. The levels of Cd and Cr metals were found to be the highest in Rajasthan, Odisha, Pb in Kerala and Hg, As in the state of Tamil Nadu. Plants growing in areas having mining activities as well as those growing on urban landscapes such as along roadsides or areas having an inflow of industrial effluents or agricultural run-off showed higher metal content than the standard limit. The presence of metals in natural habitats such as the mangroves and low lands of the Himalayan range was also noted. The review provides an insight into the magnitude of the issue, its causes and the possible lacuna that needs to be addressed to mitigate the problem.","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139232064","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

Application of Ultra Fine Bubbles for Deoxygenation of Produced Water and Tap Water via Nitrogen Purging Scheme 应用超细气泡通过氮气净化方案对采掘水和自来水进行脱氧处理

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-11-27 DOI: 10.3233/ajw230077

W. S. Abdul-Majeed, S. Al-Dawery, Saada Al Shukaili, Chandramouli Thotireddy, Ibrahim Al Amri

{"title":"Application of Ultra Fine Bubbles for Deoxygenation of Produced Water and Tap Water via Nitrogen Purging Scheme","authors":"W. S. Abdul-Majeed, S. Al-Dawery, Saada Al Shukaili, Chandramouli Thotireddy, Ibrahim Al Amri","doi":"10.3233/ajw230077","DOIUrl":"https://doi.org/10.3233/ajw230077","url":null,"abstract":"In this study, we present our findings from examining a gas lift tower for produced and tap water de-oxygenation, applying the nitrogen purging at an ultra-fine bubble scale (18 μm average size). The experiments were conducted for produced water samples grafted with polyacrylamide concentration 300 ppm with a measured bulk viscosity of 5 mPa.s. Upon applying a series of experimental sets, 0 ppm DO was attained in all examined operational schemes (semi batch and once through) within various time limits, depending on the water level in the column. Considering the zero DO level as an objective function, the results showed an improvement of 5.7–14 folds in reaching the 0 ppm DO upon experimenting with the ultra-fine bubble purging in different schemes, compared with of the results obtained from the ordinary bubble size (mm scale). The results show that DO reached < 10 ppb within 23 minutes with nitrogen flowrate 3 L/min while DO reaching < 10 ppb within 28 minutes with nitrogen flowrate 5 L/min. Furthermore, implementing the ultra-fine bubble nitrogen purging was successful in running the de-oxygenation tower in a full continuous mode at a balanced inlet/outlet water flow rate. This has been done after reaching stability in the column operation (lasting around 1 hour for 422 L of examined water sample). The stable fine bubbles cloud in the column was quite efficient in treating water influent stream to be exited directly at 0 ppm DO within the same effluent flow rate. The treatment efficiency has shown an increase with increasing water level in the column, resulting in a denser layer/cloud of fine bubbles. This result suggests a unique approach/solution for the complete removal of DO from produced water, which is accounted effective to be adopted industrially","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139232606","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

Governance Concepts, Frameworks and Lake Governance’s Conceptualisation 治理概念、框架和湖泊治理的概念化

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-11-27 DOI: 10.3233/ajw230073

Bing Baltazar C. Brillo

引用次数: 0

Kinetic, Isotherm, and Thermodynamic Modeling of Pb(II) Heavy Metals Removal from Aqueous Solutions Using Hydrogel-MWCNTs Nanocomposites 使用水凝胶-MWCNTs 纳米复合材料去除水溶液中铅（II）重金属的动力学、等温线和热力学模型

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Asian Journal of Water, Environment and Pollution Pub Date : 2023-11-27 DOI: 10.3233/ajw230081

Zainab R. Maktof, Nadher D Radia

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Inhibition Effect of Water and Alcohol Extracts of Cinnamomun zeylanicam (Cinnamomun Plant) and Zingiber offcinale (Ginger Plant) in the Growth and Efficacy of Some Microorganisms 肉桂和生姜水、醇提取物对某些微生物生长的抑制作用及抑菌效果

Asian Journal of Water, Environment and Pollution Pub Date : 2023-10-09 DOI: 10.3233/ajw230070

Raad A. Nayyef

引用次数: 0

Effect of Ag Doping on ZnO/V2O5 Nanoparticles as a Photo Catalyst for the Removal of Maxillion Blue (GRL) Dye Ag掺杂对ZnO/V2O5纳米粒子光催化剂脱除GRL染料的影响

Asian Journal of Water, Environment and Pollution Pub Date : 2023-10-09 DOI: 10.3233/ajw230062

Ahmed Mesehour Ali Refaas, Enas M. AL-Robayi, Ayad F. Alkaim

{"title":"Effect of Ag Doping on ZnO/V2O5 Nanoparticles as a Photo Catalyst for the Removal of Maxillion Blue (GRL) Dye","authors":"Ahmed Mesehour Ali Refaas, Enas M. AL-Robayi, Ayad F. Alkaim","doi":"10.3233/ajw230062","DOIUrl":"https://doi.org/10.3233/ajw230062","url":null,"abstract":"In this research, the photo catalytic degradation of textile dyes as a model Maxillion Blue (GRL) dye by using Ag/ZnO/V2O5 nanocomposites synthesised via hydrothermal method. The physical properties of the as-synthesised nanocomposites were examined using characterisation techniques such as scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), TEM, and UV-vis spectroscopy. the production of pure ZnO, V2O5 nanoparticles and the discovery, by XRD analysis, of diffraction peaks related to the hexagonal phase of ZnO, V2O5, UV-vis spectroscopic calculations of the nanocomposite’s energy bandgap (2.63 eV) indicated that it might function as a photo catalyst when exposed to UV-visible light. XRD also supported the fabrication of the ZnO/V2O5 nanocomposite. FE-SEM images showed that the object was spherical and somewhat hexagonal in form. EDX analysis reveals the presence of Zn, V, and O in the nanocomposite; its photocatalytic activity was evaluated through the degradation of GRL dye under exposure to solar light. The results showed that the optimum mass nanocomposite for efficient photo degradation was 0.4 g/L, with a degradation efficiency of 91.6%.","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135141257","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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Environment News Futures 环境新闻期货

Asian Journal of Water, Environment and Pollution Pub Date : 2023-10-09 DOI: 10.3233/ajw230071

引用次数: 0

Smart Agriculture Application Using Secured and Energy-Efficient IoT-Based WSN Framework 基于安全、节能的物联网WSN框架的智慧农业应用

Asian Journal of Water, Environment and Pollution Pub Date : 2023-10-09 DOI: 10.3233/ajw230069

Priya Rengarajan, I. Poonguzhali, E. Malarvizhi, K. Mahendran

{"title":"Smart Agriculture Application Using Secured and Energy-Efficient IoT-Based WSN Framework","authors":"Priya Rengarajan, I. Poonguzhali, E. Malarvizhi, K. Mahendran","doi":"10.3233/ajw230069","DOIUrl":"https://doi.org/10.3233/ajw230069","url":null,"abstract":"The use of wireless sensor networks (WSNs), in several sectors, including communication, agriculture, manufacturing, smart health, monitoring and surveillance is increasing in R&D. An IoT-based WSN in agricultural production has been effective in detecting yield conditions and automating agriculture precision by using multiple sensors. To collect data on crops, plants, temperature estimates and stickiness as well as to boost yields by making smart agriculture decisions, they are deployed in rural regions. Sensors, on the other hand, are constrained by their inability to handle, store, communicate, and process large amounts of data due to a lack of available resources. Additionally, the safety and security of the IoT-based agricultural sensors against damaging competitors are crucial factors, as is their efficacy. One idea put up in this article is to employ a WSN structure based on the Internet of Things (IoT) for smart agriculture. The selection of group leaders is also based on data collected by rural sensors and multi-rules choice capacity. A transmission link’s SNR (signal-to-noise ratio) is used to gauge the intensity of signals being sent over it in order to guarantee accurate and timely data transfer. In addition, the direct congruential generator is repeated in order to enable data flow from agricultural sensors to central stations (BS). Compared with previous arrangements, smart agriculture obtained an average of 13.5 percent in the organisation throughput, 38.5 percent in the parcel drop percentage, 13.5 percent in the organisation inactivity, and 16 percent in energy usage. Comparatively speaking, this is a huge step forward.","PeriodicalId":8553,"journal":{"name":"Asian Journal of Water, Environment and Pollution","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135141260","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