摘要
以转鼓脱水的净水厂污泥为研究对象,采用半干压法将其制备成陶瓷膜支撑体,并对其进行了结构与性能表征。结果表明,经过1 100℃保温3 h烧制后,支撑体孔隙率为61.0%,平均孔径为14.237μm,纯水通量为515.72 L/(m^2·h·k Pa),抗压强度为54.92 k N,维氏硬度为49.3 MPa;净水厂污泥中Si构成陶瓷膜支撑体的主体骨架。利用净水厂的废弃物制造机械强度高、孔隙率大的陶瓷膜支撑体,将兼获经济效益、社会效益和环境效益。
Using dehydrated sludge as a research object, the ceramic membrane support was pre- pared using the semi-dry pressing method, and the structure and performance of the support were characterized. The results showed that after calcination at 1 100 ℃ for 3 h, the porosity of the support was 61.0% , the average pore size was 14. 237 μm, the pure water flux was 515.72 L/（m^2 · h · kPa） , the compressive strength was 54.92 kN, and the Vickers hardness was 49.3 MPa. Silicon in the sludge of the waterworks formed the main skeleton of the ceramic membrane support. Producing high-strength ceramic membrane support from waterworks solid wastes has demonstrated economic, social and environmental benefits.
出处
《中国给水排水》
CAS
CSCD
北大核心
2017年第21期67-71,共5页
China Water & Wastewater
关键词
净水厂污泥
陶瓷膜支撑体
制备技术
资源化
抗压强度
waterworks sludge
ceramic membrane support
preparation
resource recovery
compressive strength
