Experiment Study on Aerobic Fermentation Composting of Sludge from Wastewater Treatment Plant

摘要

By means of forced ventilation and aerobic static to study the composting of the sludge, the results indicated that with regulating the moisture content and C/N ratio, after the composting of aerobic reactor, the organic matters in sludge were degraded. The water content dropped unceasingly, and ultimately reached to 30 %. The temperatures of condition A and condition B bom reached to the maximum, 58.9℃ and 59.9℃ for 6 d, respectively. The seeds' germination index of condition A and B has both reached to 100%, and the mature sludge turns into fertilizer to realize resource recovery.