Correspondent
CANTON — The most intriguing subject of the Sept. 8 meeting of the Canton Borough Water Authority was the small jar of dark material that looked a bit like potting soil.
The “soil” in question was the result of a demonstration of a Dewatering Press. A Dewatering Press is exactly what the name suggests. Liquid sewage sludge is loaded into the press and the liquid is squeezed out at high pressures to leave only mostly dry organic material.
Current procedure for processing sludge into usable material for fertilizer purposes involves using an evaporation method that results in a still mostly-liquid material.