Contaminated Landfill Leachate treatment through Synergistic Strategy of Chemical Coagulation

Soil, air and water contamination from heavy metals and metalloids is one of the most discussed and burning global issues due to its potential to cause the scarcity of healthy food and safe water. Pollution enter in to the soil from landfill activities contaminated the soil with heavy metals such as Lead, chromium, nikel and Cadium. Information regarding to pollution distribution, their reaction and their cleaning in ecosystems are vital. Environmental cleaning of the high concentration of heavy metals are important, due to its toxic effects. The efficiency of coagulation/flocculation of landfill leachate by using Aluminium sulphate,Calcium carbonate and Sodium Citrate as Immobilized Chemical Coagulant removal of heavy metals from landfill leachate was analyzed. Results of present study described thatAluminum sulphate and Calcium Carbonate efficient as Immobilized Chemical Coagulant removal of heavy metals from landfill leachate. Effect of chemical coagulants dose on the lechate wastewater treatment was studied by varying doses from as Coagulant 0.5 g/L, 1g/L, 2g/L, 5g/L at constant pH of 7-8 and found that total dissolved solids (TDS), sulphateSO4^-2 and choride percentage removal increased by increase the dose. But 0.5 g/L coagulants dose absorbed the maxium heavy metals contents. In comparison with different metals maximum Cadmium has removal efficiency with Aluminium Sulphate, maximum Lead removal efficiency with Calcium carbonate, maximum Nickle has removal efficiency with Calcium carbonate , maximum Chromium has removal efficiency with Sodium Citrate and Lead (Pb) has lowest removal efficiency with Sodium Citrate on different dose of coagulants of metal concentration in 50% leachate. In comparison maximum Chromium removal efficiency with Aluminium Sulphate  ,maximum Lead removal efficiency with Calcium carbonate and maximum Chromium has removal efficiency with Sodium Citrate , maximum Nickle has removal efficiency with Calcium carbonate and lowest removal of Lead(Pb) on different dose of coagulants of metal concentration in 100% leachate found.