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What is What is Strong sewage? and explain in detail?
SEWAGE: Contain 99.9% water. Contamination/ Strength of sewage is calculated by Biological oxygen demand/Chemical oxygen demand/Suspended solids. BOD >= 300 g/l, it is k/a strong sewage Suspended solids >500 mg/L - STRONG SEWAGE EXTRA EDGE: Waste Disposal: - Refuse - Solid waste from living room/ street / industry - Garbage - Solid waste from kitchen - Solid wastes -shouldn't contain Night soil - Sewage - Liquid waste with human excreta. Feco-oral diseases transmits through this. It doesn't contain night-soil. - Sullage - Liquid waste without human excreta.