Spray irrigation solves disposal problem

A spray irrigation system is described which removes municipal wastes from direct river discharge. The sewage enters a pumping station at the treatment facility and is screened with a mechanical bar rack to remove fibrous material. The sewage is then pumped to an equalization basin, and effluents from the basin are pumped to two activated sludge plants. The effluents are then pumped to and sprayed on an 80 acre site which is underdrained to act as a filter. (PMA)