污水处理厂污泥资源化利用途径及其经济效益分析

Research on Economic Benefits of Sludge Resource Utilization in Sewage Treatment Plant

污泥作为污水净化的产物,体量巨大,成分复杂,对污泥采用资源化利用的处置方式,在解决二次污染问题的同时可实现资源的回收,从而提高污泥的利用率并带来经济效益。从污泥的堆肥化、能源化、建材化3个方面阐述了资源化利用方式,结合某市污泥处理厂实例分析,具体介绍了污泥碱性热水解处理技术,从经济效益方面展开了探讨。

Sludge,as a product of sewage purification,is huge in volume and complex in composition.The sludge is treated and disposed by the way of resource utilization,which can not only solve the secondary pollution problem,but also realize the recovery and utilization of resources,improve the utilization rate of sludge and bring economic benefits.This paper expounds the utilization of sludge resources from three aspects:composting,energy and building materials.Based on the analysis of a sludge treatment plant in a city,the alkaline hydrolysis technology of sludge is introduced,and the economic benefits are discussed.