The effect of lipase and Mn 2+ on the treatment of soluble oil by SBR
It was investigated for the effect of micro-amount Mn 2+ and lipase on soluble oil in the simulation solution in SBR system under different conditions. The results showed that the activated sludge was quickly adapted, and the efficiency of soluble oil degradation and COD removal were obviously raised under the condition of 1 mg ·L -1 lipase in the system. However, the inhibition effect was resulted in the condition of 1.0 mg ·L -1 Mn 2+ . The efficiencies of soluble oil degradation and COD removal were rapidly raised effectively within a short period, the ratio of protein to polysaccharide was increased under the condition of Mn 2+ concentration being 0.05 mg ·L -1 . The result of comprehensiveness of inhibition and enhancement to system was showed in combination of adding 1.0 mg ·L -1 Mn 2+ and 1 mg ·L -1 lipase. The dynamics of the systems were studied and the kinetic constants for systems were calculated as 6.2 ×10 -3 ( for control), 7.5 ×10 -3 (for adding 1 mg ·L -1 lipase), 8.1 × 10 -3 ( for adding 0.05 mg ·L -1 Mn 2+ ), 8.3 ×10 -3 (for adding 1 mg ·L -1 lipase and 0.05 mg/L Mn 2+ ), respectively.
enzyme Mn 2+ SBR system extra-cellular polymeric substance (EPS) degradation kinetics
Yaoxian HUANG Fengkai LIN Zheng XU
School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237 China
国际会议
The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)
大连
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）