摘要
研究了纳滤膜处理百草枯生产废水的影响因素,并对影响膜分离性能的因素进行分析。结果表明,当系统操作压力为0.35 MPa、pH为7～9、COD为700～1 000 mg·L-1、氨氮质量浓度1 800～2 300 mg·L-1、温度为25～30℃时,处理效果明显,氨氮的去除率达到37%,COD去除率达到72%,透过液中的氨氮可望进一步分离利用。
We studied the influential factors of the NF system and analyzed the factors of membrane separation in the present. The results showed that ammonia nitrogen removal rate is 37%, COD removal rate reached 72% when the operating pressure was 0.35 MPa, pH is 7 -9, the concentration of COD is 700- 1 000 mg·L^-1, the concentration of ammonia nitrogen is 1 800-2 300 mg·L^-1, T = 25-30℃, ammonia nitrogen in the dialysate was expected to be separated and used in the further separation.
出处
《水处理技术》
CAS
CSCD
北大核心
2011年第4期98-101,共4页
Technology of Water Treatment
关键词
氨氮
纳滤
膜通量
ammonia nitrogen
nano-filtration
membrane flux
