生物除铁除锰滤池对砷(Ⅲ)的去除效果  

Arsenic(Ⅲ) removal by biofilter for iron and manganese removal

作　　者：刘晓天[1] 李冬[1,2] 曾辉平[1] 张杰[1] 

机构地区：[1]哈尔滨工业大学城市水资源与水环境国家重点实验室,哈尔滨150090 [2]北京工业大学水质科学与水环境恢复工程重点实验室,北京100124

出　　处：《哈尔滨工业大学学报》2010年第6期873-875,共3页Journal of Harbin Institute of Technology

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07424-005-003)

摘　　要：采用人工配制的含有As(Ⅲ)30～200μg/L,Fe2+0.5～1.50mg/L,Mn2+0.6～2.0mg/L的原水,通过已经培养成熟的生物除铁除锰滤柱进行过滤实验,分别考察了3、4、5m/h滤速条件下砷的去除效果.结果表明:在原水中砷质量浓度低于200μg/L的情况下,生物除铁除锰滤池的铁锰去除能力基本不受砷的影响,并且砷的去除效果明显,去除率在95%以上.经过滤柱分层取水实验,发现砷的去除集中在0～660mm的滤层厚度.在反冲洗后,短时期内砷和铁有超标的现象.In this research, the removal efficiency of As （Ⅲ） by biofiher was studied under filtration velocity of 3, 4 and 5 m/h respectively, using well-established biofilter column and synthetic raw water which contains As （Ⅲ）, Fe（Ⅱ） and Mn（Ⅱ） in the concentration of 30 -200μg/L, 0. 5 -1.5 mg/L and 0. 6 -2. 0 mg/L,respectively. The results indicate that the removal efficiency of biofilter on As （Ⅲ） can be over 95%, and it is not affected by As with the concentration below 200 μg/L in the raw water. The capability of arsenic removal of the biofiher is found to concentrate in the filter bed with deepness of 0 -660 mm after measuring the samples from different sampling places. And As （Ⅲ）and Fe（Ⅱ） will exceed the standards for a short time after back-washing.

关 键 词：生物滤池 砷 除铁 除锰 

分 类 号：TU991.2[建筑科学—市政工程]