摘要：
山东某污泥处置厂主要服务两座污水厂（污水厂一、污水厂二），原采用太阳能干化工艺将污泥干化至含水率40%后，作为垃圾填埋场覆盖土。目前，该厂存在处理能力不足且含水率40%的污泥无处安置的问题，亟需升级改造。经综合比选，选择“高压带机深度脱水预处理+喷雾干化+回转式焚烧炉焚烧”工艺处理污泥，具体工艺流程如下：含水率80%污泥→高压带机深度脱水→含水率70%污泥储存料仓→喷雾干化→回转式焚烧炉焚烧。该工程试运行结果表明：烟气主要污染物满足《生活垃圾焚烧污染物控制标准》（GB 18485—2014）的要求，灰渣固废中重金属满足《生活垃圾填埋场污染控制标准》（GB 16889—2008）的要求；项目工程投资约5 500万元，吨泥投资为55万，投资较为合理，运行成本约为211.9元/t（以80%含水率污泥计），污泥减量达到90 t/d以上，为中小型污泥焚烧项目提供工程案例经验。
关键词:
高压带机深度脱水,
污泥焚烧,
喷雾干化,
回转式焚烧炉
Abstract:
The sludge treatment plant in Shandong province mainly serves two local wastewater treatment plants (sewage treatment plant Ⅰ and sewage treatment plant Ⅱ). Originally, it used solar energy to dry sludge to a moisture content of 40%, which was then used as cover soil for landfills. However, problems such as insufficient treatment capacity and no available place for the storage of sludge with 40% moisture content necessitated an upgrade. After comprehensive comparison and selection, the process of “high-pressure belt filter press deep dewatering pretreatment+spray drying+rotary incinerator incineration” was chosen for sludge treatment. The specific process flow was as follows: sludge with 80% moisture content→high-pressure belt filter press deep dewatering→70% moisture content sludge storage silo→spray drying→rotary incinerator incineration. The trial operation results indicated that major pollutants in the flue gas met the requirements of the Environmental Control Standard for Pollutants from Municipal Solid Waste Incineration(GB 18485—2014). Heavy metals in ash and solid waste complied with the Environmental Control Standard for Pollution from Municipal Solid Waste Landfills(GB 16889—2008). The total project investment was approximately 55 million yuan, with an investment of 550,000 yuan per ton of sludge, which was relatively reasonable. The sludge operation cost was approximately 211.9 yuan/ton (calculated based on sludge with 80% moisture content), and the daily sludge reduction exceeded 90 tons. This project provided engineering case for small- and medium-sized sludge incineration projects.
Key words:
high-pressure belt filter press deep dewatering,
sludge incineration,
spray drying,
rotary incinerator
中图分类号:
郑伟杰, 张鑫, 卢立泉, 杨林鹏, 杨曦凯, 慕杨, 罗从伟, 翟学东. 山东某污泥处置升级改造工程工艺设计[J]. 工业水处理, 2025, 45(11): 198-203.
Weijie ZHENG, Xin ZHANG, Liquan LU, Linpeng YANG, Xikai YANG, Yang MU, Congwei LUO, Xuedong ZHAI. Process design for the upgrade and renovation project of sludge disposal in Shandong[J]. Industrial Water Treatment, 2025, 45(11): 198-203.