污泥低温干化工艺的工程实践与运行成本分析  

Engineering Practice and Operation Costs Analysis of Sludge Low‑temperature Drying Process

作　　者：虞佳庆 张丽丽 武丹丹 王健美 徐园园 YU Jia‑qing;ZHANG Li‑li;WU Dan‑dan;WANG Jian‑mei;XU Yuan‑yuan(Hangzhou Water Group Co.Ltd.,Hangzhou 310009,China)

机构地区：[1]杭州市水务集团有限公司,浙江杭州310009

出　　处：《中国给水排水》2025年第6期102-108,共7页China Water & Wastewater

基　　金：浙江省建设科研项目(2022K155)。

摘　　要：杭州某污水处理厂污泥处理采用离心脱水+低温干化工艺,分析了低温干化工艺的运行状况和存在的问题。污泥低温干化后质量约缩减67.8%,提升了外运处置的稳定性,但也存在产泥高峰期处理能力不足和臭气处理等问题。在干化运行成本中,电费占47.07%,运输费用占14.01%,处置费用占25.47%,运维费用占11.08%,除臭费用占2.37%。该厂污泥干化后外运和湿污泥直接外运两种运行模式的价格平衡点为污泥运输处置单价340元/t,从经济性和运行稳定性分析,现阶段采用湿污泥外运处置模式。The sludge treatment process of centrifugal dehydration and low‑temperature drying is used in a sewage treatment plant in Hangzhou.The operation status and existing problems of the low‑temperature drying process were summarized and analyzed.The weight of the dried sludge was reduced by 67.8%,which improved the stability of sludge transportation and disposal.However,there were also problems such as insufficient capacity during the peak period of sludge production and odor treatment.In the sludge drying operation cost,electricity,transportation,disposal,operation and maintenance,deodorization cost accounted for 47.07%,14.01%,25.47%,11.08%and 2.37%,respectively.The unit price of 340 yuan/t of sludge transportation and disposal is the price balance point of the two operation models,including wet sludge transportation and dried sludge transportation.On analysis of economy and operational stability,the wet sludge disposal mode was adopted at this stage.

关 键 词：污泥低温干化 离心脱水 运行成本 运输处置 电耗 光催化氧化 等离子除臭 

分 类 号：TU992[建筑科学—市政工程]