城镇污水厂污泥处理处置技术政策探讨

On the Technology Policy on Sludge Treatment and Disposal for Urban Wastewater Treatment Plants

通过对《城镇污水处理厂污泥处理处置及污染防治技术政策(试行)》提出的各种污泥处理处置方式进行技术和经济可行性分析,评述其可操作性。认为含水率80%的污泥集中处理处置设施不宜采用厌氧消化、堆肥、填埋和热干化技术,实行污泥在污水厂内脱水至含水率60%以下是污泥处理处置节能减排最有效的措施。

The technical and economic feasibility analysis on the sludge treatment and disposal methods raised by ＂Technology Poli- cy on Sludge Treatment, Disposal and Pollution Prevention in Urban WWTPs（Trial Implementation ）＂ and a review of its operability were made in this paper. It is proposed that the anaerobic digestion, composting, landfill and thermal drying techniques should not be applied to the concentrated Treatment and Disposal facilities for Sludge with moisture content of 80%, and the implementation of dewatering of sewage sludge to reduce the moisture content to below 60% inside the wastewater plants is the most effective measure for energy saving and emission reduction of sludge treatment and disposal.