水泥窑协同处置城市干化污泥技术及其工程化应用  

Technology and Engineering Application of Collaborative Treatment of Urban Dried Sludge with Cement Kiln

作　　者：陈锐章 陶从喜 赵必胜 刘超 罗辉 CHEN Ruizhang;TAO Congxi;ZHAO Bisheng;LIU Chao;LUO Hui(China Resources Cement Investment Co.,Ltd.,Shenzhen Guangdong 518000,China;China Resources Cement Technology R&D(Guangxi)Co.,Ltd.,Nanning Guangxi 530409,China;Guangzhou Yuebao Cement Co.,Ltd.,Guangzhou Guangdong 510460,China)

机构地区：[1]华润水泥投资有限公司,广东深圳518000 [2]华润水泥技术研发(广西)有限公司,广西南宁530409 [3]广州市越堡水泥有限公司,广东广州510460

出　　处：《水泥技术》2023年第3期25-31,共7页Cement Technology

基　　金：“十四五”国家重点研发计划(2021YFB3802001)。

摘　　要：广州越堡水泥协同处置城市干化污泥项目采用“污水处理厂内干化+水泥窑协同处置”技术路线,市政污泥经污水处理厂深度脱水+电热干化后,污泥最终含水率降至40%以下;干化污泥再经协同处置系统卸料、输送、破碎、喂料、除尘除臭,处置城市干化污泥量达600t/d,折算处置含水湿污泥约1 800t/d,技术优势明显。污泥处置系统运行以来,二噁英排放量为0.037ng TEQ/m~3,远低于国家标准排放限值0.1ng TEQ/m~3;年节煤约4.4万吨,节煤收益>3 750万元,按照吨烟煤排放CO_(2) 2.0t估算,年可减排CO_(2)约8.8万吨。The Guangzhou Yuebao cement collaborative disposal of urban dried sludge project adopts the technical route of "drying in the sewage treatment plant+collaborative disposal in cement kilns".After the municipal sludge is deeply dehydrated and electrically dried by the sewage treatment plant,the final moisture content of the sludge decreases to below 40%.The dried sludge is then discharged,transported,crushed,fed,and dedusted and deodorized through a collaborative disposal system.The amount of urban dried sludge disposed reaches 600t/d,which is equivalent to approximately 1 800t/d of wet sludge.The technological advantage is obvious.Since the implementation and operation of the project,the emission of dioxins has been 0.037ng TEQ/m~3,far below the national standard emission limit of 0.1ng TEQ/m~3.The annual coal saving is about 44 000 tons,and the coal saving income is more than 37.5 million yuan.Based on the estimated CO_(2) emission of 2.0t per ton of bituminous coal,the annual CO_(2) emission can be reduced by about 88 000 tons.

关 键 词：干化污泥 协同处置 污水处理 除尘除臭 

分 类 号：TQ172.44[化学工程—水泥工业]