METHOD FOR PURIFYING WASTEWATER USING ACTIVATED SLUDGE TO INCREASE PURIFICATION YIELDS

摘要

A method for increasing the purification yield in a waste water purification plant activation tank by means of an activated sludge method, wherein optionally cationized talcum, pyrophyllite, kaolin or mica with a particle size under 100 um is fed into the biomass in amounts of up to 2.0 g per litre of waste water. A substantial improvement in solid/liquid separation at the outlet of the activation tank as well as increase in the yield of removed carbon, nitrogen and phosphate pollutants are observed even when the plant is operating at medium or full capacity.