Hydrochemical Analysis of Surface water and Groundwater in Tannery belt in and around Ranipet, Vellore district, Tamil Nadu, India
Journal Title: International Journal of Research in Chemistry and Environment (IJRCE) - Year 2013, Vol 3, Issue 3
Abstract
Quality of water is an important criterion for evaluating the suitability of water for drinking and industries. One of the highly polluted areas in India located at Ranipet occupies around 200 tanneries and other small scale chemical industries. A study was carried out to assess the extent of groundwater pollution caused by tanning industries in and around Ranipet industrial area, Vellore district, Tamil Nadu. Water samples were collected during September in 2012 from 19 wells and 2 lakes and were analyzed for the concentrations of physico-chemical parameters. The type of water that predominates in the area is Na+Cl- type, based on hydrochemical facies. Groundwater in this area is unsuitable for drinking as it contains higher concentrations of calcium, magnesium, hardness, sodium, chloride, chromium and copper are toxic elements found in some wells and lake water exceeded the BIS guidelines level for drinking water and are health hazards especially for the people working in the tannery industries. This is due to the recharge of effluent discharged by tanning industries into open drains and lakes. The concentration of chromium was above the permissible limits (0.05 mg/l) in 67% of the groundwater samples, due to the use of chemicals in tanning processes is the major reason for the high concentration. On comparing the results against drinking quality standards laid by BIS, it was found that some of the water quality parameters were above the permissible limit and some were not. The pollution from tanneries has caused irrevocable deterioration of quality of groundwater in the northern part of the area. The study reveals that the groundwater quality changed due to anthropogenic and natural influences.
Authors and Affiliations
Ramesh K. , Seetha K.
Keywords
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