摘要
在阿苏卫垃圾卫生填埋场渗滤液改扩建工程中,以膜生物反应器(MBR)的出水为研究对象,考察了在一定的pH、进水流量、操作压力下纳滤膜对CODcr、NH3-N和电导率的去除情况.结果表明:在设备初期运行阶段,在pH为7、操作压力为0.5 MPa时,纳滤膜对CODcr的去除率达75%;对NH3-N的去除率较低,出水的NH3-N值略低于进水;对电导率的平均去除率达55%.此外,还分析了纳滤膜的运行性能以及与原有反渗透处理工艺联合使用等问题.
The removal of CODer, NH3 - N and conductivity of the MBR outlet water that treated with nanofil- tration was studied at a certain pH, water flow,operating pressure in the project of leachate reconstruction and extension in Beijing asuwei sanitry landfill. The result show such conditions as optimal operation conditions at initial operation stage： pH of 7, pressure of 0.5 MPa, under which removal of CODer reached 75 %, removal of NH3 - N was low, NH3 - N concentration of effluence was removal of CT was 55 %. In addition, some problems such - RO, etc was analysis. slightly lower than that of inffluet, and the average as performance of NF and cooperative effects of NF- RO, etc was analysis.
出处
《膜科学与技术》
CAS
CSCD
北大核心
2010年第1期78-81,共4页
Membrane Science and Technology
关键词
垃圾渗滤液
纳滤
反渗透
CODCR
去除率
landfill leachate
nanofiltration （NF）
reverse osmosis （RO）
removal of CODcr
