Noyyal river pollution study findings

Myilsamy.A (2012) was undertaken the study to economic impact of water pollution on rural households – A case study of Noyyal river basin in Tamil nadu. He was finished the Ph. D at Bharathiar Univeristy Coimbatore. From his study following conclusion was he made.

         The present study on the assessment of economic losses in Noyyal river basin was undertaken with a view to know the extent of average economic loss per annum. It was very clear and evident from the study that the ample villages in Noyyal river basin have been directly affected by the partly treated or untreated industrial effluents. The magnitude of damage caused to the agricultural sector and livestock was very heavy. Likewise, the impact on drinking water was also severe and it was evident that the surface water and ground water were polluted, the fisheries activities and recreation facilities were also significantly affected. There were the incidents of migration of labours and residents in the area due to lack of agricultural activities and poor environmental conditions. In nutshell, it was observed that the sample villages in Noyyal river basin were directly affected by the effluent and the damages were heavy to different sectors.  

Suggestion

1.      The authorities concerned, regarding this issue, shall not permit any more new processing industries like bleaching and dyeing in Tiruppur area.

2.      Processing industries can be allowed to have their units only near seashore and after treatment by the proper method the effluents may be allowed to confluence in the sea.

3.      Instead of the present treatment methods of effluents, an alternate technology (R.)., Biological etc.,) may be considered in consultation with the Pollution Control Board.

4.      On the basis of the extent and magnitude of damage the villagers especially the farmers may be given compensation for their loss on the basis of Polluters Pay concept.

5.      In future a pollution vigilant committee may be formed to control and regulate the process of treatment. The committee may be formed with villages, farmers, industry owners and government official as members. The committee may be recognized by a suitable Act.

PWD - Water Resource Organization Study finding

Senthilnathan (2004), study the micro level environmental status report of river Noyyal Basin. Most of the industries are located on either side of the Noyyal river bank at Tiruppur. These industries especially dyeing and bleaching units are the water consuming one. Nearly 9,000M³T of effluent from these industries are released directly in to the river Noyyal with incomplete treatment. This ultimately affects the river surface water system severely. The characterization of the water quality of the surface water samples of the river Noyyal is found higher and well above the threshold limit. Though the surface water is clear it looks slightly gray colour due to the domestic effluent mixed with the industrial effluent. Thus the water samples were very turbid throughout these areas. The colloidal material associated with turbidity provides adsorption surface for various chemical wastes from the industrial treated effluent. The chemical composition is likely to be greatly affected by the nature and amount of effluent dumped into it as well as biotic and abiotic processes in the water body.