The sewage treatment is now a day often replaced with “wastewater treatment plant”. This term is used in context with the waste and harmful water particles along with the excrement which is directly conveyed in the sewers. Often, the liquid and the solid wastes are generally carried off in the drains which cause the blockage at the time of rainfall. Also, the rainwater gets in touch with these and becomes harmful because of these particles. Not only the rainfall, various animals and agricultural fields are affected and finally this cycle includes the humans too. So the whole chain is affected and the nature is disturbed.