Study of Earthworms Treating Municipal Wastewater in Cold Regions
Earthworms have synchronous function in sewage purification, sludge stabilization and reduction. Earthworms used in sewage treatment are energy-efficient and high assurance, and show remarkable economic and environmental benefits. The material being in keeping with sustainable development has “ecological equilibrium” and “environment-friendly” two distinct characteristic. This paper analyzes Influence factors of handling techniques. Besides it studies the technical and economic feasibility of technology applied in cold regions and finds a new method for the reuse of sewage and sludge in cold regions.
Hexing Li, Qunjie Xu and Daquan Zhang
Z. F. Li and T. L. Ma, "Study of Earthworms Treating Municipal Wastewater in Cold Regions", Advanced Materials Research, Vols. 356-360, pp. 2141-2145, 2012