Manal Larakeb, Mohammed Ridha Remmache, Mohammed Mourad Snoussi, Aissaoui Ziar, Lazhar Hadjeris
{"title":"Experimental study of methylene blue adsorption from aqueous solutions onto natural Algerian goethite","authors":"Manal Larakeb, Mohammed Ridha Remmache, Mohammed Mourad Snoussi, Aissaoui Ziar, Lazhar Hadjeris","doi":"10.2166/wpt.2024.191","DOIUrl":"https://doi.org/10.2166/wpt.2024.191","url":null,"abstract":"\u0000 \u0000 The objective of this work is to study and model the methylene blue (MB) sorption, from aqueous solutions by goethite. The equilibrium time was reached during 10 min of agitation with 26.21 ℅ efficiency. MB removal efficiency is improved with an increased absorbent dose (0.5–08 g/l) for an initial 10 mg/l concentration. Treatment efficiency decreases with the increase of initial MB concentration (2–100 mg/l). The best adsorption yields were obtained in basic media. MB sorption kinetics via goethite leads to several results as to mechanisms that govern kinetics and isotherms equilibrium: Blanchard's model provides a better fit of the experimental results compared to Lagergren's model. Thus, the MB sorption kinetics is described by the pseudo-second order. Particle diffusion is involved in the MB removal mechanism, but it is not the only limiting step and the Boyd model application confirms that diffusion in the pores is the limiting step of the MB sorption process. The Elovich model is well verified and translated probably the existence of chemical-type interactions between MB and goethite. The study of MB adsorption isotherms showed that Freundlich, Temkin, and Elovich models are the best adapted than the Langmuir model. Finally, we can assess that goethite can be an interesting natural adsorbent for MB elimination from polluted waters in basic environments.","PeriodicalId":510255,"journal":{"name":"Water Practice & Technology","volume":" 44","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141829941","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}
{"title":"Analysis of dry and wet season water quality in the municipality of La Gomera, Guatemala","authors":"Alejandra Caballero, Margareth Garcia, Francisco Pérez-Sabino, Sergio Lickes, C. Guzmán-Quilo, Jorge Pérez-Folgar, Derek Johnson, Silvie Pouit, Diana Gomez, Darío Rodriguez, Gerardo Arroyo","doi":"10.2166/wpt.2024.074","DOIUrl":"https://doi.org/10.2166/wpt.2024.074","url":null,"abstract":"\u0000 There is a need for access to clean potable water worldwide. However, almost every source of surface water in Guatemala is contaminated. This study assesses the potential exposure to water contaminants in proximity to Medecins Sans Frontieres's (MSF) chronic kidney disease clinic population in La Gomera, Guatemala during wet and dry seasons. Five municipal wells and four artisanal wells (servicing approximately 18.9% of La Gomera) were selected for their proximity to MSF La Gomera clinic to determine the presence of coliforms, physicochemical parameters, heavy metals, and pesticide residues. Water samples were collected over 3 consecutive days during La Gomera's wet season and again during the dry season. Wet season 2022: Total coliforms and Escherichia coli exceeded the acceptable limits for several artisanal wells but were not detected in municipal wells. Mercury and arsenic were detected in all wells during at least one sampling period. Dry season 2023: Total coliforms exceeded the acceptable limits for all wells and E. coli was detected in all four artisanal wells. Lead and arsenic were detected in all wells. Our results suggest that water from artisanal wells does not meet COGUANOR or WHO microbiological criteria for human consumption.","PeriodicalId":510255,"journal":{"name":"Water Practice & Technology","volume":"50 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140367894","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}
{"title":"Modeling on comprehensive evaluation of groundwater quality status using Geographic Information System (GIS) and Water Quality Index (WQI): a case study of Bahir Dar City, Amhara, Ethiopia","authors":"Chalachew Mulat Alemu, Yibeltal Fentahun Aycheh, Gashaw Sintayehu Angualie, Selamawit Sewunet Engidayehu","doi":"10.2166/wpt.2024.076","DOIUrl":"https://doi.org/10.2166/wpt.2024.076","url":null,"abstract":"\u0000 Groundwater is the most important natural resource, and many people throughout the world rely on it for drinking, particularly in rural areas. The present study was carried out to assess the status of groundwater quality and to check its suitability for domestic purposes in urban centres of Bahir Dar City, Ethiopia. Twelve shallow wells were selected for sampling. The sampled water was taken during the dry and summer seasons of the year 2019/2020. pH, turbidity, EC, TDS, chloride (Cl−), nitrate (NO3-), phosphate (PO4-3), total hardness, and Escherichia coli were measured for the suitability analysis. Comparison of measured results with that of WHO and Ethiopian drinking water quality standards wasdone. Moreover, Geographic Information System (GIS) and Water Quality Index (WQI) data analysis techniques were applied in order to investigate the groundwater quality. The spatial distribution map showed that the city's core area had the poorest groundwater quality status. The WQI result obtained from the analysis showed that 41.67, 33.33, and 25% of the sampled groundwater has low, extremely poor, and unsafe quality for drinking purposes, respectively. The present study revealed that anthropogenic activities have a great impact on the quality of groundwater in the area, necessitating immediate mitigating actions.","PeriodicalId":510255,"journal":{"name":"Water Practice & Technology","volume":"132 51","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140369849","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}
Fatma Zohra Guenouche, Amina Mesbahi-Salhi, R. Zegait, Sana Chouia, M. Kimour, Zihed Bouslama
{"title":"Assessing water quality in North-East Algeria: a comprehensive study using water quality index (WQI) and PCA","authors":"Fatma Zohra Guenouche, Amina Mesbahi-Salhi, R. Zegait, Sana Chouia, M. Kimour, Zihed Bouslama","doi":"10.2166/wpt.2024.073","DOIUrl":"https://doi.org/10.2166/wpt.2024.073","url":null,"abstract":"\u0000 \u0000 Ensuring high water quality in Algeria, particularly in Annaba, is crucial for the well-being of its population and the sustainable development of its diverse ecosystems. The study focuses on the Cheffia Dam, Oued El Aneb, and Treat boreholes as crucial sources of drinking water. The water quality index (WQI) is used to assess water quality based on various physico-chemical parameters. The research spans from January to December 2021, analyzing 16 parameters, such as temperature, pH, conductivity, turbidity, total hardness, calcium, magnesium, sodium, potassium, chloride, nitrate, sulfate, phosphate, and iron, this results in a total of 36 samples and 576 analyses. Principal component analysis (PCA) is employed to delve into interrelationships between variables, revealing distinct characteristics for each site. This study, the first of its kind, provides a comprehensive 1-year evaluation of water quality in Annaba. The collected data serve as a valuable resource for future water management decisions, highlighting both temporal and spatial variations. The current study indicates that the analysis of water parameters, adherence to standards, and the application of WQI reveal that the water sources are generally good quality throughout the year with excellent water quality in autumn. However, challenges such as elevated turbidity in Cheffia dam water necessitate targeted interventions.","PeriodicalId":510255,"journal":{"name":"Water Practice & Technology","volume":"98 36","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140377634","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}
{"title":"Implicating the effects of consuming water with a high level of arsenic content: highlighting the cause and consequences of arsenic contamination in drinking water","authors":"Sumant Kumar Verma, SriRam Chaurasia","doi":"10.2166/wpt.2024.072","DOIUrl":"https://doi.org/10.2166/wpt.2024.072","url":null,"abstract":"\u0000 \u0000 Contamination of groundwater due to arsenic (As) and problems faced by drinking the contaminated water have been identified worldwide. The integration of biogeochemical processes has led to the dissolution of naturally occurring As into the groundwater. The goal of this investigation is mainly to determine the presence of As in drinking water and consequences faced by human beings by drinking such contaminated water. Scope of this issue has not yet undergone a full epidemiological examination in any Indian region. However, in India, little is known about the disease caused by arsenicosis. Therefore, the present study discusses various natural and anthropogenic sources of As in groundwater involving its speciation and mobilization pattern in groundwater. Appropriate review on the issues of As contamination in groundwater has been conducted in various regions across the globe followed by the epidemiology and toxicity mechanisms of As in human beings. Various remediation techniques have been adopted for mitigating the major impact of As contamination depending upon the conventional, modern, and hybrid technologies for removing the As from several regions of India.","PeriodicalId":510255,"journal":{"name":"Water Practice & Technology","volume":"31 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140375404","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}
B. Senthil Rathi, P. Senthil Kumar, V. Kishore, Sriraam Sridhar, G. Rangasamy
{"title":"Conventional technologies and recent developments in the nanotechnological approach for the remediation of persistent organic pollutants","authors":"B. Senthil Rathi, P. Senthil Kumar, V. Kishore, Sriraam Sridhar, G. Rangasamy","doi":"10.2166/wpt.2024.070","DOIUrl":"https://doi.org/10.2166/wpt.2024.070","url":null,"abstract":"\u0000 \u0000 Persistent organic pollutants (POPs) are one of the important concerns in the environmental sciences and ecotoxicology fields. Various deadly illnesses and environmental problems are caused by them. It is a major issue in society that there are no new and effective ways to eliminate POPs from the atmosphere. Nanotechnology is a rapidly developing area that has uses in every aspect of life. A lot of attention is being paid to the investigation of novel synthetic methods for shaping and controlling the size of nanomaterials due to their outstanding uses and qualities. One of the most significant groups of nanoparticles is the magnetic nanoparticles. A novel class of magnetic separation techniques for water treatment has been made possible through the utilization of magnetic nanoparticles as nano adsorbents. Our aim in this study is to give a concise, focused review of POP, emphasize the sources, types, and potentially hazardous impacts they have on living organisms, and to offer some observations on their detection and monitoring strategies. To draw attention to certain significant conventional removal technologies and recent developments including nanotechnology, magnetic nanoparticles, and their synthesis. Finally, hybrid nanotechnology for POP removal has been investigated.","PeriodicalId":510255,"journal":{"name":"Water Practice & Technology","volume":"112 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140380531","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}
Jayanta Kumar Gogoi, Priya Sharma, G. Talekar, Swapnil Punyapwar, Keyur Namdev, S. Mutnuri
{"title":"Demonstration and performance analysis of on-beach public toilet with a decentralised modified French vertical flow constructed wetland and ex situ electrochlorination integrated treatment system","authors":"Jayanta Kumar Gogoi, Priya Sharma, G. Talekar, Swapnil Punyapwar, Keyur Namdev, S. Mutnuri","doi":"10.2166/wpt.2024.071","DOIUrl":"https://doi.org/10.2166/wpt.2024.071","url":null,"abstract":"\u0000 \u0000 India's concern about wastewater generation outpacing the centralised treatment capacity has increased significantly. This study demonstrated an on-beach public toilet equipped with a sustainable decentralised treatment system in Goa, India. The research gap of the number of toilet users, freshwater demand, and wastewater (WW) generated per day in India was documented. The treatment system consisted of a modified French-type vertical flow constructed wetland (MVFCW) and electro-chlorinator. The first and second stage MVFCW were an unsaturated and saturated type, respectively. The onsite beach bore well water with a chloride concentration of 8464 ± 415.18 mg/L was electrolyzed for 1 h at 40.49 Am−2 to perform ex situ electrochlorination disinfection. The MVFCW effluent was disinfected with 2412.50 ± 278.61 mg/L of chlorine (Cl2) generated at a disinfectant dilution ratio of 1:300 (Cl2:WW) to ensure less than 5 mg/L residual Cl2. The average daily toilet users, freshwater usage, and WW generated were 96 ± 17.02, 1381.38 ± 380.35 L, and 1407.98 ± 611.8 L, respectively. The integrated treatment system treated 1,400 L/day. The integrated treatment system achieved an average percentage removal of 93.38 ± 0.38% chemical oxygen demand, 79.18 ± 1.55% NO−3, 98.45 ± 0.22% total ammoniacal nitrogen, 93.13 ± 1.19% PO4−3, 87.28 ± 0.2% total suspended solids, 83.09 ± 1.16% total organic carbon, 80.22 ± 0.87% total carbon, 80.05 ± 0.12% inorganic carbon, and 100% coliform. The cost of power consumption was 0.17 INR m−3.","PeriodicalId":510255,"journal":{"name":"Water Practice & Technology","volume":"11 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140381539","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}
Dimple Dimple, P. K. Singh, M. Kothari, K. Yadav, S. R. Bhakar, Jitendra Rajput, Anvesha
{"title":"Assessing groundwater quality in Nand Samand catchment, Rajasthan, India: a GIS-based multi indices approach for drinking and irrigation water suitability","authors":"Dimple Dimple, P. K. Singh, M. Kothari, K. Yadav, S. R. Bhakar, Jitendra Rajput, Anvesha","doi":"10.2166/wpt.2024.069","DOIUrl":"https://doi.org/10.2166/wpt.2024.069","url":null,"abstract":"\u0000 \u0000 Consistently monitoring groundwater quality (GWQ) is essential to reduce the risk of geochemical contaminants and ensure its suitability for agriculture and human consumption. The current investigation aims to assess GW acceptability in the Nand Samand catchment (NSC), utilizing the water quality index (WQI) and irrigation water quality indices (IWQIs) for domestic and irrigation purposes. To achieve this, GW samples were collected from 95 open wells which were located spatially in the catchment, during the pre-monsoon (PRM) and post-monsoon (POM) seasons of 2019 and 2020, and subsequently analysed for 11 physico-chemical parameters. Electrical conductivity (EC) varied from 1.25 to 6.61 dS/m and 0.58 to 7.42 dS/m during the PRM and POM seasons, respectively. Total dissolved solids of the study area ranged between 180 and 1,180 (27%) to 1,180 and 2,180 (62%) during PRM 1,180 (63%) to 1,180–2,180 (31%) during POM, respectively. The study also computed the ‘sodium adsorption ratio’ (SAR) and ‘residual sodium carbonate’ (RSC) to estimate GW's appropriateness for agriculture, finding it suitable in most locations due to its balanced composition. Based on WQI, varying percentages of samples were classified as ‘good’ and ‘poor’ for potable water quality in both seasons.","PeriodicalId":510255,"journal":{"name":"Water Practice & Technology","volume":"9 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140381558","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}
{"title":"A manifold learning perspective on surrogate modeling of nitrates in the Kansas River","authors":"Nicholas Tufillaro","doi":"10.2166/wpt.2024.068","DOIUrl":"https://doi.org/10.2166/wpt.2024.068","url":null,"abstract":"\u0000 A non-linear surrogate model of nitrate concentration in the Kansas River (USA) is described. The model is an (almost) Piece-wise Linear response surface that provides a mean field approximation to the dynamics of the measured data for nitrate plus nitrite (target product) correlations to turbidity and chlorophyll-a concentrations (input variables). The method extends the United States Geological Survey’s linear procedures for surrogate data modeling allowing for better approximations for river systems exhibiting algal blooms due to nutrient-rich source waters. The model and visualization procedures illustrated in the Kansas River example should be generally applicable to many medium-size rivers in agricultural regions.","PeriodicalId":510255,"journal":{"name":"Water Practice & Technology","volume":" 33","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140221110","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}
{"title":"Integrated modeling of snow-covered areas and hydrological processes in the Larji Sub-Basin, Himachal Pradesh, India, using SRM and SWAT models","authors":"Chander Kant, Raysing Meena","doi":"10.2166/wpt.2024.065","DOIUrl":"https://doi.org/10.2166/wpt.2024.065","url":null,"abstract":"\u0000 \u0000 Alpine snow is crucial for the water cycle, as the runoff and environment of arid and semi-arid regions rely entirely on these glaciers. Mountain-fed rivers provide the water for domestic, agricultural irrigation, hydroelectric power, and other uses. Due to climate variability, river catchment flows may shift, causing floods and droughts that will aggravate the economy. The trends analysis of snow-covered areas (SCAs) and glacier melt has always been critical worldwide. This study estimated the SCA using Google Earth Engine (GEE) for the Larji River basin, situated in Himachal Pradesh, from the year 2001 to 2021. The SCA varies from 0.7 to 22% in the basin. The present study highlights the effectiveness of cloud computing for assessing trends in snow cover regions in the basin. Moderate Resolution Imaging Spectroradiometer (MODIS) snow product (MOD10A1 V6 Snow Cover Daily Global 500 m product) is utilized for SCA calculation. The snowmelt estimation using the Snowmelt Runoff Model (winSRM) showed a good agreement with the measured and calculated runoff (R2 > 0.53) for the years 2019–2021. Using R Studio, the study of trends showed a decline in the pre-monsoon season, whereas other seasons show an upward trend, and there is an overall increase in the annual SCA from 2001 to 2021.","PeriodicalId":510255,"journal":{"name":"Water Practice & Technology","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140228252","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}