CONSTRUCTIVE-TECHNICAL SOLUTION OF SLUDGE MOISTURE REDUCTION
In order to improve the ecological situation and to reduce the sludge volume and moisture content, the mechanical dehydration of sludge and the technology of its preparation for further utilization as organic fertilizers in plants growing, afforestation, as well as in biological and technical reclamation of disturbed lands, have been designed. As the main equipment for sludge dewatering, belt filter presses of the LF-1500P type in a set with belt thickeners are recommended. The introduction of dehydration technology will make it possible to solve a number of nature-protection tasks: the areas used for sludge storage will be fourfold decreased (from 134500 to 32047 m2); the amount of sludge settled at treatment facilities (from 300 m3 to 50 m3/day; day) will be six-fold decreased; the maximum sludge dewatering from 97 to 83% will be ensured with the standard quality of discharged effluents being maintained; the surface concentration of pollutants emission into the air will be decreased from 5.4 to 2.9 tons per year.