Volume No. 7 Issue No.: 2A Page No.: 1043-1046 Oct. - Dec. 2012




Parmar Gaurang and Parikh Punita*

Department Botany, Faculty of Science, The M.S. University of Baroda, Vadodara (INDIA)


Received on : July 10, 2012




All the aquatic system carries some suspended solids under natural conditions. There are numerous direct and indirect impacts of silt, suspended solids etc. associated with turbidity in natural as well as in wastewaters. This leads to changes in the water quality, reduced light penetration and aesthetics as well as adverse effects on fish, invertebrates and aquatic plants. At industrial level the major contributes towards turbidity are effluents from paper- pulp industries, dairy industries etc. Therefore, there is an utmost need to lower the turbidity level of natural and wastewater. The plant polymers are effective in reducing suspended particles from the wastewater and hence are useful as natural coagulants, for example Coccinia indica, Abelmoschus esculentus, Plantago ovate etc. Therefore, the present study aimed at reducing turbidity level of dairy waste using natural coagulants. The wastewater samples were collected from Baroda dairy and Amul dairy and analyzed as per standard methods for pH, Temperature, EC, Turbidity, BOD, COD, TS and TDS etc. The performance of fruit mucilages of Coccinia indica and Abelmoschus esculentus and the dry seed powder of Moringa concensensi and Trapa natans at different doses i.e. 20 mgl-1, 30 mgl-1, 40 mgl-1 towards the turbidity removal from wastewater were evaluated. The results of raised value of physico-chemical parameters indicated the presence of pollutants in the collected dairy samples. The initial turbidity of the sample was reported to be quite high (784 NTU) against normal turbidity of 40 NTU. Treatment with 30 mg/l dose proved more effective as compared to other experimental doses for all the tested coagulants. C.indica gives highest turbidity reduction of 77.67% among four selected plants, while M. concensensis, T. natans and A. esculentus give turbidity reduction up to 72.95%, 64.79% and 60.33% respectively.


Keywords : Turbidity, Industrial waste, Natural coagulants, Mucilage, Temperature