Hydrogeochemical evaluation and assessment of groundwater quality was carried for selected areas of Bishnupur district of Manipur to ensure its suitability for drinking and irrigational uses. Twenty physico-chemical parameters of groundwater samples from thirty-one spatially distributed areas were assesed including major geogenic contaminants such as Fe3+, As3+ and F− to ensure public health safety. In-situ parameters such as temperature, pH, EC, DO, salinity, ORP, TDS were determined using field sensors and other parameters were analysed using standards methods. The suitability of groundwater for potable use was assessed using drinking water quality index based on World Health Organisation standards. Groundwater quality indices exhibit very poor results due to presence of high dissolved solids, higher values of EC, excessive hardness and presence of geogenic contaminants in the groundwater samples. Irrigational water quality of groundwater resources showed satisfactory results according to the various irrigational water quality parameters and indices. Geochemical evaluation showed most of the groundwater sources are dominated by Ca-Mg-Na-HCO3−-Cl− type of water mainly originated from silicate and carbonate rock-weathering or dissolutions processes.

中文翻译：

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曼尼普尔邦 Bishnupur 区选定地区地下水质量的水文地球化学评估和评价

对曼尼普尔邦 Bishnupur 区的选定区域进行了地下水水质水文地球化学评价和评估，以确保其适合饮用和灌溉。对来自 31 个空间分布区域的地下水样品的 20 项理化参数进行了评估，包括 Fe3+、As3+ 和 F− 等主要地质污染物，以确保公众健康安全。使用现场传感器确定原位参数，例如温度、pH、EC、DO、盐度、ORP、TDS，并使用标准方法分析其他参数。使用基于世界卫生组织标准的饮用水质量指数评估地下水对饮用水的适宜性。由于存在高溶解固体、较高的 EC 值、地下水样品中硬度过高和地质污染物的存在。地下水资源灌溉水质各项灌溉水质参数和指标均显示出满意的结果。地球化学评价表明大部分地下水源以Ca-Mg-Na-HCO3--Cl-型水为主，主要来源于硅酸盐和碳酸盐岩石风化或溶解过程。