城市水质净化厂污泥的好氧发酵处理和利用

城市水质净化厂的污泥含有丰富的有机物和氮、磷、钾等营养素,但也含有重金属、致病菌和寄生虫卵等有害物质,在利用前必须无害化、稳定化。以上海市中心城区水质净化厂80%含水率的脱水污泥为研究对象,进行好氧发酵试验研究,经过1级、2级发酵,所得到的成品能达到无害化、稳定化的目标,可资源化利用。

Aerobic Fermentative Treatment and Utilization of Sludge in Urban Water Purification Plants

As there are rich organic matters and nutrients such as nitrogen, phosphorus and potassium etc included in sludge from urban water purification plants, as well as harmful matters like heavy metals, pathogenic bacterium and parasites etc, the sludge must be innocent and stable before utilization. Taking dewatered sludge with 80% of moisture content from water purification plants in Shanghai center areas as the object, aerobic and fermentative tests && studies have been carried out. After fermenting of grade 1 and grade 2, the end product could meet the requirements of innocence and stability with utilization of resources.