MBR与二段式SBR处理酱油废水的对比分析

通过MBR与SBR处理酱油废水对比分析发现,MBR的出水COD优于二段式SBR,而二段式SBR＋气浮出水COD优于MBR. SBR工艺对色度基本没有去除作用. MBR出水色度低于两段式SBR＋气浮工艺.以日处理水量400 m^3的现场工程为例,对SBR和MBR的工程总投资和运行费用进行了对比分析,MBR的运行费用比SBR低22%. 但MBR的制水成本较高,使其难以推广应用.随着自来水费与排污费的提高、膜组件价格下降及寿命延长,该技术会有更快的发展. 将MBR与SBR工艺进行组合,是解决MBR现存问题的有效途径.

Comparative analysis of MBR and two-stage SBR treating sauce waste water

Analysis result of MBR treating sauce waste water in contrast to SBR is: COD of MBR is better than SBR in effluent,but worse than SBR with air floating.It is no use of SBR technique getting rid of chromaticity,and chromaticity of MBR is better than SBR in effluent.Take a living work as example,treating water quantity is 400 m~3/d,analyze total project investment and annual operational cost of MBR in contrast to SBR,the operational cost of MBR is lower 22% than that of SBR.It is difficult for MBR to use widely result from the cost of producing of MBR is more expensive.With the improvement of fee of tapping water and wastewater discharge,the decrease of membrane module price,prolonging the membrane filtration,the MBR technique will be developed rapidly.A resultful approach to resolve the existent problem is the combination of MBR and SBR technique.