污泥浓度对膜生物反应器的影响

Influences of MLSS on MBR

研究了膜生物反应器处理废水时,污泥浓度对出水水质及膜通量的影响,结果表明,尽管试验中污泥沉降性能较差,但当污泥浓度大于2000mg/L时,出水仍能达到城市杂用水水质标准,出水COD随污泥浓度升高而降低,膜通量与污泥浓度的对数值呈线性关系。

<Abstrcat>The influences of MLSS on effluent and membrane flux were carried out with Membrane Bioreactor (MBR) used in the treatment of wastewater. The results showed that in spite of the bad sludge sedimentation performance , the effluent reached the standard of GB/T18920-2002'Urban Wastewater Reclamation Mixed Water Used for Living of China'when MLSS was 2000mg/L. The COD of effluent descended along with the increase of MLSS. Membrane flux and the logarithm of MLSS had linearity relations.