Upgrading Conventional Sewage Treatment Process by Using Mangifera Indica

Unbalanced industrial development and concentration of population in urban areas creates severe problems related to water. Sewage produced from the human activity contributes in water pollution. Conventional methods are much better to treat waste water as compare with Coagulation and flocculation which are physical-chemical methods. Chemicals used to treat waste water by clarifllocultion generate sludge which is one sort of pollutant. For upgrading conventional methods to treat waste water, there is a need to think sustainable way to minimize waste by using naturally available materials. The seeds of less water required plants of rural area could be a best option for this. It is a low cost material and also will have income for rural people. A lot of work has been carried out on Water Treatment by natural Coagulation with natural coagulants; now there is need to concentrate on recycling of water in less developed communities to ensure their basic needs of water from domestic waste water treatment. This study consecrates over use of natural coagulant for sewage treatment and also quality and uses of sludge generated by using natural coagulants during treatment of sewage. An attempt has been made to use of seeds of Mango [Mangifera indica], as a natural coagulant for the treatment of sewage to minimize the cost of treatment and to achieve good quality of sludge and treated wastewater. A pilot plant study with laboratory analysis shows that Mango [Mangifera indica] seeds, as natural coagulant remove around 32% BOD and 30% TSS in primary treatment. Sludge generated through treatment of sewage may be used as manure after composting. Natural coagulation for treating sewage is a best way to reduce the organic loading over aeration tank of activated sludge process. This will reduce cost of waste water treatment by sustainable way.