复合铁酶促活性污泥抗低温硝化能力的研究  

Nitrification Ability of Compound Ferric Enzymatic Activated Sludge at Low Temperature

作　　者：毕学军[1] 赵方超[1] 邢尚生 赵庆彬[1] 

机构地区：[1]青岛理工大学青岛市城市水环境污染控制工程研究中心,山东青岛266033 [2]青岛首创瑞海水务有限公司,山东青岛266042

出　　处：《中国给水排水》2013年第19期18-21,共4页China Water & Wastewater

基　　金：国家自然科学基金资助项目(51078192);国家水体污染控制与治理科技重大专项(2012ZX07203-004);青岛市科技支撑计划项目(12-1-3-54-nsh);中德国际合作项目(2012DFG91380)

摘　　要：在11-15℃低温条件下，从微生物活性、系统硝化能力以及硝化过程与硝化速率角度，比较分析了复合铁酶促活性污泥与普通活性污泥的差别。结果表明，复合铁酶促活性污泥系统的INT-ETS、TTC—DHA、NH4^＋-N硝化率以及好氧初期硝化速率分别较普通活性污泥系统提高了62．5％、17．97％、9．1％、233％。复合铁酶促活性污泥通过铁离子介入微生物生化反应与能量代谢过程，强化铁离子参与电子传递作用与酶促反应激活剂作用，使其具有较高的电子传递体系活性、脱氢酶活性以及较强的硝化功能，这对解决低温硝化难题具有十分重要的意义。At low temperature of 11 to 15 ℃, the difference between compound ferric enzymatic activated sludge system （CFEASS） and conventional activated sludge system was compared and analyzed in terms of microbial activity, nitrification ability, nitrification process and nitrification rate. The results showed that the INT-ETS activity, TTC-DHA, nitrogen removal efficiency and nitrification rate at the beginning of aerobic period in the CFEASS were higher by 62.5%, 17.97%, 9.1% and 233% compared with those in the conventional activated sludge system, respectively. CFEASS strengthened the role of ferric ion participating in electron transfer and enzymatic reaction activator by getting ferric ion involved into microbial biochemical reactions and energy metabolism, which resulted in higher INT-ETS activity, TTC- DHA, and nitrification ability. CFEASS has a vital significance for solving the challenge of nitrification at low temperature.

关 键 词：低温 铁 微生物活性 硝化 

分 类 号：X703[环境科学与工程—环境工程]