净水污泥的性质与资源化利用  

Properties and re-use of water treatment sludge

作　　者：孔丹 魏美洁 张玉妹 王东田 

机构地区：[1]江苏省环境功能材料重点实验室,江苏苏州215009 [2]江苏省环境科学与工程重点实验室,江苏苏州215011

出　　处：《苏州科技学院学报（工程技术版）》2012年第1期60-63,共4页Journal of Suzhou University of Science and Technology （Engineering and Technology）

基　　金：国家自然科学基金项目(50878136);苏州市科技计划项目(SYG201122);江苏省普通高校研究生科研创新计划项目(CXZZ11-0956);苏州科技学院研究生科研创新计划项目(SKCX11S-057)

摘　　要：主要通过分析苏州新区水厂的净水污泥来探究净水污泥的成分、主要的物相组成与性质,并且初步评估了利用净水污泥制备吸附剂的可行性。研究表明,净水污泥有机质含量约为18%左右,主要的矿物组成为石英、白云母和高岭土等。此外,还对水厂污泥进行了比表面和热重分析测试。由于污泥灰的化学组成与粘土相似,因此可以利用净水污泥制备去除水中重金属离子的吸附剂。以Cd2+为吸附对象,研究了吸附时间、吸附温度、初始浓度及pH对污泥吸附效果的影响。This paper have mainly analyzed the composition and main characterizations of the DWTP sludge from water plants in Suzhou New District and evaluated the feasibility of using the sludge to prepare the adsorbent.The study shows that the sludge contains 18% organic matter,and its main mineral constituents are muscovite,quartz,kaolinite and so on.Furthermore,the specific surface and TGA in the sludge are tested.Due to the similar composition of the clay and the water treatment sludge,the sludge can be used as an adsorbent to remove the heavy metal from the aqueous solution.The paper also studied the influences of adsorption time,adsorption temperature,initial solution and pH value on the adsorption effect by taking the Cd2＋ as an adsorption target.

关 键 词：净水污泥 成分分析 吸附剂 重金属离子 

分 类 号：X703.1[环境科学与工程—环境工程]