Hi, I don't have answer to your question. But I suggest you specify what type of kinetics you are going to work on: the kinetics of particle growth, of contaminant removal, or of coagulant consumption. Then the question might be easier to be answered. 

Chengjin Wang sir thank u very much for the suggestion. If u send me any research paper related to this it will be more better for me ...Thanks

You may find the following articles helpful:

http://www.electrochemsci.org/papers/vol8/80303176.pdf

file:///C:/Users/mbanasof/Downloads/water-03-00495.pdf

https://www.researchgate.net/publication/228333036_Treatment_of_laundry_waste-water_by_electrocoagulation

http://www.tandfonline.com/doi/pdf/10.1080/21622515.2012.715390

Article Treatment of laundry waste-water by electrocoagulation

Thanx Ernest O Nnadi sir for help me

Dushyant, also check the following articles:

http://www.sciencedirect.com/science/article/pii/S0960852409000030

http://www.sciencedirect.com/science/article/pii/S0011916406001378

http://www.sciencedirect.com/science/article/pii/S0304389408005001

http://www.sciencedirect.com/science/article/pii/004313549490264X

Thanks all of u..

Kinetic studies of treatment process have major role in determining the hydraulic retention time in any reactor system to achieve desired removal efficiency. Consequently, rate constant is very significant in the design of wastewater treatment units. It is very fundamental to know the type of reaction rates for design a wastewater treatment unit. Rate of reaction describes the rates of change in concentration of reactant per unit time.