武汉工程大学学报2018，Vol.40Issue(3)：284-287,4.DOI:10.3969/j.issn.1674-2869.2018.03.010
碳化硅陶瓷膜处理工业废水的工艺特性研究
Process Characteristics of Industrial Wastewater Treatment with Silicon Carbide Ceramic Membrane
摘要
Abstract
The process characteristics of waste-water treatment and effects of the silicon carbide ceramic membranes were studied for three kinds of industrial waste water,the mixture of diluted phosphoric acid and pulp,monoammonium phosphate slurry and oil-containing cutting fluid by the cross-flow filtration method. The effects of the filtration time and transmembrane pressure on the flux through silicon carbide ceramic membranes were evaluated. And the flushing times for flux recovery were also investigated. The experimental results indicated that when the pore size of silicon carbide ceramin membrane was 0.5 μm,transmembrane pressure was 0.14 MPa,the filtration time was 20 min,the suspended solids contents in the filtrate were 54 mg/L,49 mg/L and 16 mg/L,respectively,meeting the Integrated Wastewater Discharge Standard. The membrane flux decreased with increasing filter time,then kept stable after 16 min. As for the oil containing cutting fluid,the filtation effect was best at 0.2 MPa transmembrane pressure. The contents of oil and suspended solids in the filtrate were 0.78 mg/L and 9.35 mg/L respectively,meeting the emissions standard. The flux of the contaminated ceramic membrane can be recovered from 250 L/(h·m2)to 406 L/(h·m2)with 97% or higher recovery ratio after backflushing for 5 times with the mixture of air and water.关键词
碳化硅陶瓷膜/废水处理/膜通量/反冲洗Key words
silicon carbide ceramic membrane/industrial wastewater/membrane flux/backflushing分类
化学化工引用本文复制引用
代小元,沈凡,戴武斌,季家友,王树林,王昭,徐慢..碳化硅陶瓷膜处理工业废水的工艺特性研究[J].武汉工程大学学报,2018,40(3):284-287,4.基金项目
湖北省技术创新专项(2016ACA160) （2016ACA160）
湖北省科技支撑计划项目(2014BAA102) （2014BAA102）
