给水厂污泥免烧结陶粒强化尾水除磷除氟性能研究  

Study on enhanced dephosphorization and defluorination of tail water by non-sintered ceramsite from waterworks sludge

作　　者：张烨 余轶鹏 汪炎 章保 杨靖 牛泽睿 王伟[1] ZHANG Ye;YU Yipeng;WANG Yan;ZHANG Bao;YANG Jing;NIU Zerui;WANG Wei(Department of Municipal Engineering,School of Civil Engineering,Hefei University of Technology,Hefei 230009,China;Hefei Municipal Design and Research Institute Co.,Ltd.,Hefei 230041,China;Anhui Provincial Key Laboratory of Industrial Wastewater and Environmental Treatment,Hefei 230022,China)

机构地区：[1]合肥工业大学土木与水利工程学院市政工程系,合肥230009 [2]合肥市市政设计研究总院有限公司,合肥230041 [3]工业废水及环境治理安徽省重点实验室,合肥230022

出　　处：《工业用水与废水》2023年第5期62-67,共6页Industrial Water & Wastewater

基　　金：国家重点研发计划项目(2019YFC0408502);安徽省科技重大专项(2021d07050001);合肥市市政设计研究总院有限公司研发项目(W2020JSFW0692)。

摘　　要：为探索给水厂污泥固体废弃物的资源化利用途径,以给水厂污泥为主要原料开发出一种新型免烧结陶粒,并将其用作水处理滤料,研究其除磷除氟性能。正交试验结果表明,原料的最佳质量配比为:给水厂污泥45%、粉煤灰25%、水泥25%和激发剂5%。在污水处理厂尾水动态吸附柱试验中,水力停留时间为8 h时,总磷和氟化物去除率分别稳定在38.1%和19.1%左右,去除效果较普通陶粒分别提升了6.1倍和2.7倍。利用给水厂污泥制备的免烧结陶粒为城镇污水处理厂尾水除磷除氟提供了新的方法。In order to explore the way of resource utilization of solid waste of waterworks sludge,a new type of non-sintered ceramsite with waterworks sludge as main material was developed,and then be used as water treatment filter material,meanwhile,its dephosphorization and deflourination performance were studied.The results of the orthogonal test showed that,the optimal raw materials mass ratio of the non-sintered ceramsite was 45%of waterworks sludge,25%of fly ash,25%of cement and 5%of activator.In the tail water dynamic adsorption column experiment,when the hydraulic retention time was 8 h,the removal rates of total phosphorus and fluoride were stable at about 38.1%and 19.1%respectively,which were 6.1 and 2.7 times higher respectively than that of the ordinary ceramsite.Therefore,non-sintered ceramsite prepared from waterworks sludge provids a new method for dephosphorization and defluorination of tail water of municipal sewage treatment plant.

关 键 词：给水厂污泥 免烧结陶粒 除磷 除氟 深度处理 

分 类 号：X703.1[环境科学与工程—环境工程]