城市污泥干燥焚烧一体化处理工艺的研究

Research on the Treatment Technology of Drying-Incinerating Integrated Systems for Sewage Sludge

城市污泥的产量日益增加,若不进行处理,不仅浪费土地资源而且污染环境。对污泥中的水分形式和污泥的处理工艺进行了分析,认为污泥的干燥和焚烧是最完全、稳定的处理工艺。提出一种城市污泥干燥焚烧一体化处理工艺,利用污泥自身焚烧产生的热值,提供干燥系统所需的热量,达到整个污泥处理系统能量的基本自给。对该系统的流程和各工艺进行了分析,结果表明该系统的污泥减量大、干燥效率高、运行成本低、尾气排放有效控制。

The output of sewage sludge increases day by day. It will not only waste the land resource but also pollute the environment if it does not be treated. The water form and treatment technology of sludge were analyzed, and drying and incinerating were deemed to the most complete and steady treatment technology. A treatment technology of drying-incinerating integrated systems for sewage sludge was proposed which the heat amount from sludge incineration provides the requirement of the incinerating system and the whole drying-incinerating integrated systems can be self-support basically. The processes and technologies of the systems were analyzed, and the results showed that the advantages of the systems were the large decrement of sludge, high drying efficiency, low running cost and effective control of the exhaust emissions.