空气氧化除Fe^(2+)机理与生物除Fe^(2+)除Mn^(2+)工艺技术研究(Ⅱ)  

Study on the Mechanism of Fe^(2+) Removal by Air and the Technology of Biological Removal of Fe^(2+) Mn^(2+) (Ⅱ)

作　　者：李冬[1] 杨宏[1] 陈立学[2] 张杰[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100022 [2]中国市政工程东北设计研究院,长春130021

出　　处：《北京工业大学学报》2003年第4期441-446,共6页Journal of Beijing University of Technology

基　　金：国家科技攻关基金资助项目(86-06-02);吉林省科技攻关基金资助项目(990334)

摘　　要：在生物固Mn2+除Mn2+理论的指导下,通过滤柱装置试验,探求生物滤层中Fe2+、Mn2+的氧化动态.得出Mn2+的氧化虽然迟后于Fe2+的氧化,但Fe2+、Mn2+的氧化带并无明显界限.Fe2+虽然在无菌滤层中就可以完全氧化,但在生物滤层中Fe2+参与了除Mn2+菌的代谢,在维系生物滤层的稳定上是不可缺少的. Fe2+、Mn2+可以在同一滤层中得以去除.由此开发了一级过滤除Fe2+除Mn2+的简缩工艺流程和一系列配套的工艺技术,并应用于大型除Fe2+除Mn2+水厂的设计与运行.投产2a来,出水ρ(Mn2+)小于0.05mg/L,总铁为痕量,均优于国家饮用水标准,达到了预期目的.Under the direction of theory of biological fixation and removal of manganese, the oxidation trends of Fe2+ and Mn2+ in the filter is studied. It is concluded that the oxidation of Mn2+ is later than that of Fe2+. There is no clear limit between the oxidation areas of Fe2+ and Mn2+. Fe2+ can be completely oxidized in the sterile filter, but because Fe2+ take part in the metabolism of manganese removal bacteria in biological filter, which is indispensable to keep the stabilization of the filter. Fe2+ and Mn2+ can be simultaneously removed in one biological filter. On this basis the concise process(one stage filtration) and relevant technology have been invented. A large scale biological treatment plant for iron and manganese removal has been designed in Shenyang according to the theory. The removal effect is satisfactory: Total Fe is in trace and p (Mn2+) is less than 0.05 mg/L in filtrate, which are superior to the national standard for drinking water.

关 键 词：地下水 生物固Mn^2+除Mn^2+ Fe^2+、Mn^2+同时去除 

分 类 号：X523[环境科学与工程—环境工程]