文章基本信息

标题：Tannery Effluent Management vis-a-vis Groundwater Quality in Dindigul, Tamilnadu, India
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作者：P. Mani ; M. Madhusudanan
期刊名称：Nature, Environment and Pollution Technology
印刷版ISSN：0972-6268
出版年度：2016
卷号：15
期号：2
语种：English
出版社：Technoscience Publications
摘要：Groundwater meets more than 2/3rd of drinking and agricultural needs of many villages, towns and cities.But its availability and quality remains vulnerable due to pollution, especially from industrial sectors. Dindigulis one of the major skin/hide processing areas in Tamilnadu which generate  57 KL of effluent per tonneof material processed with high pollution load (TDS: 7912-11430 mg/L, COD: 3571-7600 mg/L, chloride:3278-4199 mg/L, BOD: 1475-1686 mg/L, hardness: 1188-2800 mg/L, sodium : 650-2255 mg/L, TSS:398-1248 mg/L, sulphate: 370-830 mg/L, alkalinity: 200-1476 mg/L and sulphide: 51-296 mg/L). A CETPwith a design capacity of 2500 KLD is in operation since 1996 to manage the wastes from tanneries. Thecapacity utilization of CETP was poor (only 34%) and important parameters (TSS, TDS, chloride, oil &grease, BOD, COD, sulphide and TKN) of the treated effluent fail to meet the prescribed standards fordischarge either into inland surface waters or on land for irrigation. As the treated effluent is stored in anearthen pond and allowed to percolate naturally, the groundwater quality (TDS, chloride, sulphate, alkalinity,hardness, calcium and magnesium) of the nearby villages is also affected and fail to meet standardsprescribed for drinking water.