Papers by D. Sivakumar KARE - AGRI
International Journal of Environmental Science & Technology, 2011
A significantly large volume of effluent is generated during the manufacture of sugar and contain... more A significantly large volume of effluent is generated during the manufacture of sugar and contains high amount of pollution load. The effluent from sugarcane industry is disposed off on land moves into the wider environment through a number of routes and the soil itself retains the various contaminants in the effluent to a greater or lesser extent depending on the physical nature of the soil. The analysis of contaminant transport through soil used to design of industrial wastewater treatments and disposal systems. This paper discussed the adsorption and diffusion of cations calcium, magnesium, sodium and anions chloride and sulphate by the sorption diffusion permeameter under different hydraulic retentions time of 3 min, 13 min, 27 min and 58 min with a constant diffusion flow rate of 3.6 L/h. In this study, less percentage error found between observed adsorption and diffusion coefficients from the experiments at different hydraulic retentions time and optimum adsorption and diffusion coefficients from the experiments at optimum hydraulic retentions time of 30 min for calcium, magnesium, sodium, choloride and sulphate. The results of regression analysis implied that the adsorption and diffusion coefficients obtained from the equation for cations and anions were good recognizing with the experimental results.
International Journal of Environmental Science and Technology, 2013
Effects of initial concentrations of Moringa oleifera seed coagulant for removing Chemical Oxygen... more Effects of initial concentrations of Moringa oleifera seed coagulant for removing Chemical Oxygen Demand and Total Dissolved Solids from municipal solid waste leachate have been evaluated at an optimum pH of 7 and temperature of 318 K. The kinetic data obtained from the experiments were fitted to the pseudo first-order, pseudo second-order, Elovich and intraparticle diffusion models. Based on a regression coefficient (R 2), the equilibrium (kinetic) data were best fitted with the Elovich model (R 2 = 0.993 for Chemical Oxygen Demand and R 2 = 0.996 for Total Dissolved Solids) than that of other models. The results of the kinetic models study indicated that the adsorption capacity of M. oleifera seed as a coagulant for removing Chemical Oxygen Demand and Total Dissolved Solids in a leachate increased up to 100 mg L-1 , beyond which the adsorption capacity got reduced. Finally, the present study concluded that M. oleifera seed coagulant could be employed effectively for the removal of Chemical Oxygen Demand and Total Dissolved Solids in a municipal solid waste leachate.
Textile industry processes are among the most environmentally unfriendly industrial processes, be... more Textile industry processes are among the most environmentally unfriendly industrial processes, because they produce colour wastewater that heavily pollutes the environment. Therefore, wastewater in a textile industry has to be treated before being discharged into the environment. In this study, experiments were performed to remove colour from a textile industrial wastewater in a constructed wetland using Lemna minuta L. for different process parameters nutrient dosage, dilution ratio, and pH against different contact time. The maximum percentage reduction of colour in a textile industry wastewater by Lemna minuta L. was obtained at an optimum nutrient dosage of 50 g, dilution ratio of 10, pH of 7 and contact time of 6 days. Similarly, experimental results were validated and the validation experimental results showed that the maximum removal percentage of colour in a textile industry wastewater is lesser than the maximum removal of colour in an aqueous solution, is because, there are...
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Papers by D. Sivakumar KARE - AGRI