摘要
考察了操作条件对陶瓷膜处理脱脂液废水效果的影响。结果表明:采用孔径为200nm氧化锆膜,在操作压力为0.1MPa,膜面流速5～7m/s,操作温度40℃的操作条件下,陶瓷膜处理此体系废水的分离效果最好。膜的稳定通量为390L/m2.h,渗透液油含量小于30mg/L,油的截留率大于99.4%,清洗剂中的无机组分完全透过膜,表面活性剂及有机物大约有85%透过膜。
Ceramic membranes were used to remove oil and grease from alkaline cleaning solution. The effect of operation conditions on treatment of degreasing wastewater by ceramic membranes was studied. Experimental results showed that zirconia membrane with pore size of 200nm had good performance. The optimal conditions were at transmembrane pressure of 0.10MPa,flow speed on membrane surface of 5.2 m/s and the temperature 40℃ .The steady flux could keep at 390 L/m^2·h;the oil content in permeate was less than 30mg/L and oil retention rate was greater than 99.4%; Inorganic alkaline content passed freely through the membranes;moreover about 15% surfactant and organic additives were retained by the membrane.
出处
《水处理技术》
CAS
CSCD
北大核心
2007年第3期42-44,88,共4页
Technology of Water Treatment
基金
国家重点基础研究发展规划(973)项目(2003CB615707)
关键词
陶瓷膜
膜分离
脱脂废水
含油废水
ceramic membrane
membrane separation
degreasing wastewater
