wastewater, sewage, leachate, outfall, groundwater, sewerage, slurry, potable, lagoons, sludge, turbidity, clarifiers, water, reverse osmosis, tailings, effluence, activated sludge, aquifer, contaminants, pollutants, fly ash, faecal matter, chlorination, clarifier, sediment, manure, flocculant, ammonia, nitrate, chlorine, sodium hypochlorite, watercourse, silt, orthophosphate, filtration, potassium permanganate, chloramine, rainwater, drainage, catchment, hazardous waste, nitrification, sullage, biochemical oxygen demand, ponds, sewage disposal, influent, waste, digester, pollution, toxic waste, recirculation, discharges, septic tank, reticulation, leaching, sumps, chlorides, raffinate, seawater, solids, sedimentation, sanitary landfill, copper sulphate, forebay, sewer, soakaway, backflow, digestor, landfill, arsenic, reservoir, springwater, nitrogen, coliform bacteria, denitrification, desalination, phosphorus, pipework, hypochlorite, irrigation, copper sulfate, tetrachlorethylene, backwash, upflow, mld, salinity, reservior, brine, coliform, ozonation, compost, hydrated lime, filtrate, tannery, mythe, malodour, cyclohexane, aeration, disinfection, biogas, pentachlorophenol, effluents, wastewaters, aqueous, product, concentrate, condensate, feedstock, sludges, refrigerant, fertiliser, plasma, bod, coolant, distillate, fertilizer, ambient, permeate, pollutant, exhaust, supersaturated, urine, contaminant, dialysate, discharge, hourly, inlet, nutrient, pretreatment

bacteria bed

waste material, waste matter, waste product

outflowing, outgoing, sewer water