Water Supply and Waste-water Disposal

activated carbon activated sludge activated-sludge adsorption aeration aquifer arithmetic arithmetic mean artesian aquifer average basins biological calculated capacity carbon chemical chlorine coagulation coefficient concentration corrosion curve depth diameter digestion discharge disinfection distribution draft drainage drains drawdown effluent engineering equation evaporation Example Figure filtration flocculation floe flood flow frequency gpcd groundwater head loss hydraulic hydrogen sulfide industrial inlet intake ion exchange ions loading magnitude maximum normally observations odors operation organic oxidation oxygen particles pipe plants polluted population precipitation pressure pumping purification rainfall ratio receiving waters relatively removal reservoir runoff sand sanitary sedimentation settling sewage sewers slope slow sand filters sludge solids specific spillway sq mile storage storm stream substances surface surface runoff Table tanks temperature tests tion treatment trickling filters unit values velocity volume waste water and wastewater water supply