微量脂肪酶与Mn^(2+)促进SBR系统处理溶解性油废水的研究  

Effects of Lipase and Mn^(2+) on the Treatment of Soluble Oil Wastewater by SBR

作　　者：黄耀贤[1] 林逢凯[1] 李晟[1] 胥峥[1] 

机构地区：[1]华东理工大学资源与环境工程学院,上海200237

出　　处：《净水技术》2009年第2期40-44,共5页Water Purification Technology

基　　金：上海市科委资助(062312021)

摘　　要：在SBR系统中,通过考察不同浓度的Mn2+与脂肪酶单独或协同作用对溶解性油废水降解的影响,发现同时加入浓度分别为1 mg·L-1的脂肪酶和0.05 mg·L-1Mn2+时,溶解性油的降解率和COD的去除率显著提高,胞外聚合物(EPS)中蛋白质/多糖的比值也显著增大。SBR系统的反应速率常数分别是:对照组为6.2×10-3L·mg-1·h-1,加入1 mg·L-1脂肪酶的系统为7.5×10-3L·mg-1·h-1,加入0.05 mg·L-1 Mn2+的系统为8.1×10-3L·mg-1·h-1,加入1 mg·L-1脂肪酶和0.05 mg/L Mn2+的系统为8.3×10-3L·mg-1·h-1。In SBR system, separate or cooperative effects of different concentrations of Mn^2＋ and lipase on the degradation of soluble oil wastewater were investigated, it was found that the efficiencies of soluble oil degradation and COD removal were rapidly raised within a short period, and the ratio of protein to polysaccharide in the extra-cellular polymeric substance （EPS） as well. The degradation reaction rate constants of SBR systems were determined as 6.2×10^-3L·mg^-1·h^-1 （for the control）, 7.5×10^-3L·mg^-1·h^-1（adding 1 mg.L-1 lipase）, 8.1×10^-3L·mg^-1·h^-1 （adding 0.05 mg.L^-1 Mn^2＋） and 8.3×10^-3L·mg^-1·h^-1（adding 1 mg.L^-1lipase and 0.05 mg/L Mn^2＋）, respectively.

关 键 词：脂肪酶 Mn2+ 活性污泥 胞外聚合物(EPS) 降解动力学 

分 类 号：X703[环境科学与工程—环境工程]