Research on Resource Utilization of City Sludge

With the municipal sewage treatment plants establishment and popularization, the sludge production increases day by day. The major environmental problem is how to process them in the course of Chinese urbanization. Sludge is not only a kind of pollutants, but also a kind of valuable resource. It could be turned into precious materials and thus improve economic benefit. In this paper, it reviewed the current status and the tendency of the disposal and reuse of municipal sludge. It was believed that the comprehensive utilization of sludge was an economical and effective way in China. Through the dispose of innocently and stabilization in the sludge, especially the land utilization of sludge, it could not only save plenty of terminal handle expenses, but also improve the physical property of soil and return ingredients to the soil. The utilization of land will be no doubt the most reasonable method.