Abstract
Ground water from Chinnalapatti, TamilNadu, India, was collected from the habitations at the vicinity of dyeing industries to study the impact of dyeing industry effluent on ground water quality. Physico-chemical parameters, namely EC, pH, Total hardness, Ca, Mg, Na, Cl, TDS, Potassium and Sulphate were analyzed and compared with drinking water standard. pH, Ca and Mg were within the desirable and permissible limit of drinking, whereas sulphate, Sodium and Potassium were within the desirable limit only. Water Quality Index was calculated to assess the level of pollution and it is 61, indicating the pollution rate of ground water between slight and moderate. Correlation of various physico-chemical parameters with EC, TDS, and Total hardness was also calculated to establish the nature of relationship between them. EC is positively correlated with sodium, similarly TDS and Total hardness are positively correlated with calcium.
Highlights
Environmental pollution is a global phenomenon because of its adverse effects on human health, plants, animals and exposed materials [1]
Water pollution due to dyeing industry is the matter of great concern since large quantity of effluent is discharged into the water bodies
It was observed that pH of ground water was between 6.2 and 7.7 and met drinking water criteria
Summary
Environmental pollution is a global phenomenon because of its adverse effects on human health, plants, animals and exposed materials [1]. A large number of organic and industrial effluents has been introduced into the environment that has increased water and land pollution problems manifold. Water pollution due to dyeing industry is the matter of great concern since large quantity of effluent is discharged into the water bodies. The dye effluent is highly toxic in nature as it contains high suspended solid, COD, dye and chemicals along with high concentration of heavy metals like Cu, Cd, Zn Ni and Pb. The dye effluent contaminates the surface and ground water, thereby, making it unfit for irrigation and drinking [3]. Most of the dyeing units discharge the untreated effluent into the land which pollutes the ground water and makes it unfit for drinking. The main objective of the present investigation was to assess the water quality index of ground water and to interpret the water quality of ground water by a statistical calculation called correlation co-efficient
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