Chemical characteristics of sewage/Waste water/total solid, suspended solid and Dissolved solid and Settleble solid/pH values/BOD and COD/Biochemical Oxygen Demand/Per capita Load/Chemical Oxygen Demand/Nitrogen/Dissolved Oxygen/DO/Sanitary Engineering/Environmental Engineering
Chemical characteristics of Sewage Chemical characteristics of sewage indicate the sewage pollution extent and the type of treatment required. The basic chemical characteristics with test for determining are: a. Total solid, Suspended and Dissolved solid and Settleble Solid: Present in small amount (0.1%), solid can be in four different forms. These solids can be both organic and inorganic matter. Organic matter consist of carbohydrate, fat, nitrogenous compounds etc. and inorganic matter consist of minerals and salts. Total solid is the sum of all kind of solid. The estimation of suspended solids, both organic and inorganic, gives a general picture of the load on sedimentation and grit removal system during sewage treatment. Dissolved inorganic fraction is to be consi...