{"title":"Comparative analysis of soil contamination caused by existing municipal solid waste management facilities","authors":"Bhargavi N. Kulkarni, V. Anantharama","doi":"10.1016/j.enmm.2024.100979","DOIUrl":null,"url":null,"abstract":"<div><p>This study investigates soil contamination around existing municipal solid waste (MSW) management facilities specifically, composting, and active landfill sites in Bangalore, India. The physicochemical parameters considered are pH, electrical conductivity (EC), sodium adsorption ratio (SAR), and concentration of heavy metals namely copper (Cu), chromium (Cr), nickel (Ni), and zinc (Zn). Soil samples collected from MSW sites and natural soil, are chemically analysed in laboratory. A comparison of parameters was done by designing and testing 28 statistical hypotheses.</p><p>This empirical study revealed that the concentration order of heavy metals was Zn > Cr > Cu > Ni for landfill site samples and Zn > Cu > Cr > Ni for composting site samples. The mean values of pH, SAR, Cu, Cr, Zn, Ni, and EC in landfill site samples were higher than that control samples by 21 %, 60 %, 152 %, 4 %, 131 %, 114 %, and 555 % respectively. Similarly, for composting site samples, the mean values of pH, SAR, Cu, Cr, Zn, Ni, and EC were higher than that control samples by 13.61 %, 108 %, 1088 %, 5 %, 374 %, 236 %, and 2144 % respectively. Heavy metals concentrations, EC, and SAR in composting site samples exceeded control and landfill site samples. However, pH of landfill site samples was higher than that in both composting site and control samples. While the Cr concentrations among the three sites was not statistically significant, it was highest in composting site samples. The study recommends measures to obviate soil contamination from existing MSW management facilities.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"22 ","pages":"Article 100979"},"PeriodicalIF":0.0000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Nanotechnology, Monitoring and Management","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2215153224000679","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Environmental Science","Score":null,"Total":0}
引用次数: 0
Abstract
This study investigates soil contamination around existing municipal solid waste (MSW) management facilities specifically, composting, and active landfill sites in Bangalore, India. The physicochemical parameters considered are pH, electrical conductivity (EC), sodium adsorption ratio (SAR), and concentration of heavy metals namely copper (Cu), chromium (Cr), nickel (Ni), and zinc (Zn). Soil samples collected from MSW sites and natural soil, are chemically analysed in laboratory. A comparison of parameters was done by designing and testing 28 statistical hypotheses.
This empirical study revealed that the concentration order of heavy metals was Zn > Cr > Cu > Ni for landfill site samples and Zn > Cu > Cr > Ni for composting site samples. The mean values of pH, SAR, Cu, Cr, Zn, Ni, and EC in landfill site samples were higher than that control samples by 21 %, 60 %, 152 %, 4 %, 131 %, 114 %, and 555 % respectively. Similarly, for composting site samples, the mean values of pH, SAR, Cu, Cr, Zn, Ni, and EC were higher than that control samples by 13.61 %, 108 %, 1088 %, 5 %, 374 %, 236 %, and 2144 % respectively. Heavy metals concentrations, EC, and SAR in composting site samples exceeded control and landfill site samples. However, pH of landfill site samples was higher than that in both composting site and control samples. While the Cr concentrations among the three sites was not statistically significant, it was highest in composting site samples. The study recommends measures to obviate soil contamination from existing MSW management facilities.
期刊介绍：
Environmental Nanotechnology, Monitoring and Management is a journal devoted to the publication of peer reviewed original research on environmental nanotechnologies, monitoring studies and management for water, soil , waste and human health samples. Critical review articles, short communications and scientific policy briefs are also welcome. The journal will include all environmental matrices except air. Nanomaterials were suggested as efficient cost-effective and environmental friendly alternative to existing treatment materials, from the standpoints of both resource conservation and environmental remediation. The journal aims to receive papers in the field of nanotechnology covering; Developments of new nanosorbents for: •Groundwater, drinking water and wastewater treatment •Remediation of contaminated sites •Assessment of novel nanotechnologies including sustainability and life cycle implications Monitoring and Management papers should cover the fields of: •Novel analytical methods applied to environmental and health samples •Fate and transport of pollutants in the environment •Case studies covering environmental monitoring and public health •Water and soil prevention and legislation •Industrial and hazardous waste- legislation, characterisation, management practices, minimization, treatment and disposal •Environmental management and remediation
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