序批式生物反应器处理选矿黄药废水的研究  

TREATMENT OF BUTYL XANTHATE WASTEWATER BY SEQUENCING BATCH REACTOR

作　　者：张新[1] 周洪波[1,2] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083 [2]生物冶金教育部重点试验室,湖南长沙410083

出　　处：《水处理技术》2011年第1期108-111,132,共5页Technology of Water Treatment

基　　金：教育部新世纪优秀人才支持计划项目(NECT-06-0691);国家自然科学基金创新研究群体科学基金资助项目(50621063)

摘　　要：采用序批式生物反应器(SBR)处理模拟丁基黄药选矿废水,考察了曝气量、进水方式、沉降时间等反应器参数对丁基黄药生物降解效果的影响。结果表明,丁基黄药含量、沉降时间、曝气时间和进水方式对SBR处理丁基黄药废水的效果有影响。在优化上述运行参数以后,SBR运行周期可调至8h,其中进水10min,曝气6h,沉降时间为40min,排水10 min,闲置60 min。固定进水丁基黄药的质量浓度为100 mg·L-1、曝气体积流量为100 mL·min-1时,出水丁基黄药的质量浓度为0.04mg·L-1、COD为55mg·L-1,达到辽Q1647-83排放标准。每天可运行3个周期,提高了反应器的处理量。Simulated butyl xanthate wastewater was treated by a sequencing batch reactor（SBR）.The effects of mass concentration,aeration rate,feeding mode,settling time on the biodegradation of butyl xanthate were investigated.Experimental results showed that,under the conditions of 8 h completed mixed aeration,100 mg·L^-1 influent xanthate concentration,the effluent xanthate concentration was less than 0.4 mg·L^-1.At optimum conditions,i.e.12 h running cycle,including 10 min batch wastewater filling,8 h completed mixed aeration,air flow rate of 100 mL·L^-1,40 min sludge settling,10 min decantation and 180 min idle period,the influent 100 mg·L^-1 xanthate was completely degraded.At the optimum process conditions,maintaining the influent concentration of 100 mg·L^-1 constant,aeration time was reduced to 6 h,the SBR runs 3 cycles per day with a full cycle of 8 h,which increases the daily treatment capacity of the SBR reactor.While the effluent xanthate concentration was 0.04 mg·L^-1,and the effluent COD concentration is 55 mg·L^-1,both meet the emission requirements.

关 键 词：序批式生物反应器 丁基黄药 生物降解 工艺优化 

分 类 号：X751[环境科学与工程—环境工程]