作　　者： ; ; ; ; ; ;

机构地区： 广东工业大学环境科学与工程学院

出　　处： 《电镀与涂饰》 2010年第6期38-41,共4页

摘　　要： 采用自制一体化膜生物反应器(SMBR)处理印刷线路板(PCB)综合废水,对系统驯化过程的污泥生物相变化,SV_(30)(污泥沉降比)、SVI(污泥沉降指数)、MLSS(混合液悬浮固体浓度)、MLVSS(混合液挥发性悬浮固体浓度)等污泥特性,以及系统pH、铜离子浓度、化学耗氧量(COD)等水质指标进行了监测。试验结果表明:污泥培养驯化过程中,游泳型纤毛虫、固着型纤毛虫(累枝虫、钟虫)、轮虫、红斑顠体虫、表壳虫、固着型纤毛虫交替成为优势种群。进水铜离子质量浓度为12 mg/L左右驯化完成,此时污泥MLSS为6 100 mg/L,SV_(30)为29%～38.5%,SVI为75～90 mL/g。系统出水COD、铜离子浓度和pH均达广东省水污染物排放限值一级标准,COD和铜离子的去除率分别超过85%和95%。 A home-made submerged membrane bioreactor （SMBR） device was used to treat the comprehensive wastewater from the printed circuit board （PCB） industry. The variation of sludge biological phase, sludge properties such as SV30 （settled volume in 30 min）, SVI （settled volume index）, MLSS （mixed liquor suspended solids） and MLVSS （mixed liquor volatile suspended solids）, and parameters of water quality such as pH, copper ion concentration and chemical oxygen demand （COD） were monitored during acclimation. The results showed that the swimming ciliates, sessile ciliates （epistylis, vorticella）, rotifer, aeolosoma hemprichi, arcella and sessile ciliates become the dominant species alternately. The MLSS was 6 100 mg/L, SV30 29%-38.5% and SVI 75-90 mL/g at the end of acclimation when the mass concentration of copper ions reached 12 mg/L.The COD, copper ion concentration and pH of the treated wastewater reached the first class discharge standard of Guangdong province. The removal efficiency of COD and copper ion were above 85% and 95%, respectively.

关 键 词： 印刷线路板 综合废水 一体化膜生物反应器 活性 污泥 驯化 回用 铜离子 化学耗氧量

领　　域： [环境科学与工程]