Impact of leachate on groundwater quality using physicochemical characteristics

Water Practice & Technology Pub Date : 2024-05-20 DOI:10.2166/wpt.2024.127

Tarekegn Tadesse Weju, Zerihun Getaneh

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Abstract

This study assesses the impact of Koshe open dump site leachate on nearby groundwater quality. Groundwater quality is threatened by open dump sites. Groundwater samples around Koshe open dump sites showed elevated levels of various physicochemical characteristics, including Electrical conductivity (EC), Potassium (K), Iron (Fe), Chromium (Cr3), Lead (Pb), Mercury (Hg), Total Alkalinity, Nitrate (NO3−), Phosphate (PO4+), Cadmium (Cd), Bicarbonates (HCO3−), Arsenic (As), Salinity, Cobalt (Co), and Silicon (Si), exceeding Ethiopian, WHO, and EPA drinking water quality standards. Among the sampled wells, the one located at Ayer Tena High School, upstream of Koshe, exhibited significantly lower concentrations of parameters indicating leachate impact on groundwater quality As, Cd, Cr3, Pb, Hg, Molybdenum (Mo), NO3-, K, and PO4+ compared to others. The presence of these parameters in nearby groundwater wells suggests a substantial impact of the Koshe dump site on groundwater quality. Traditional landfills and dump sites must be outlawed, and new hygienic landfills must be constructed in a convenient location to end the continued groundwater pollution.

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利用物理化学特征分析沥滤液对地下水质量的影响

本研究评估了 Koshe 露天垃圾场沥滤液对附近地下水水质的影响。地下水质量受到露天垃圾场的威胁。Koshe 露天垃圾场附近的地下水样本显示出各种物理化学特征水平升高，包括电导率 (EC)、钾 (K)、铁 (Fe)、铬 (Cr3)、铅 (Pb)、汞 (Hg)、总碱度、硝酸盐 (NO3-)、磷酸盐 (PO4+)、镉 (Cd)、重碳酸盐 (HCO3-)、砷 (As)、盐度、钴 (Co) 和硅 (Si)，均超过埃塞俄比亚、世界卫生组织和美国环保署的饮用水质量标准。在采样的水井中，位于科舍上游 Ayer Tena 高中的水井与其他水井相比，显示沥滤液对地下水水质影响的参数浓度明显较低，包括砷、镉、三氯化铬、铅、汞、钼（Mo）、NO3-、钾和 PO4+。附近地下水井中出现的这些参数表明，Koshe 垃圾场对地下水质量产生了重大影响。必须取缔传统的垃圾填埋场和垃圾堆放场，并在方便的地点建造新的卫生垃圾填埋场，以结束地下水的持续污染。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Water Practice & Technology

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