DISCUSSION. DISPOSAL OF SEWAGE SLUDGE.

Keywords: DISPOSAL, SEWAGE, SLUDGE, SEWERAGE, ORGANISMS, RIVERS, MANURE, PRESSING, TREATMENT, EFFLUENT, PURIFICATION, CHEMICAL, DISEASES, FARMING, SANITATION, LIME, AGRICULTURE, COMBUSTION, METHODS, CITIES, URBAN, MICROBES, ALUMINA, WORKS, DISCHARGES, RECYCLING, FILTERS, PRESSES, FILTRATION, MACHINERY, SEWERS, SOLIDS, SUSPENDED, MATTER, PUMPS, PUMPING, COSTS, IRRIGATION, PUBLIC HEALTH, POLLUTION, IRON, FARMS, UK, LONDON, THAMES, CROSSNESS, BARKING, WIMBLEDON