生物接触氧化法处理选矿废水的影响因素  

Some influencing factors of flotation wastewater treatment with bio-contact oxidation method

作　　者：宋卫锋[1] 唐铁柱[1] 林梓河[1] 严明[1] 邓琪[1] 陈小清[1] 

机构地区：[1]广东工业大学环境科学与工程学院,广州510006

出　　处：《环境工程学报》2013年第2期603-607,共5页Chinese Journal of Environmental Engineering

基　　金：南京铅锌银矿业有限公司资助项目(企2009220)

摘　　要：选矿废水主要来源于有色金属矿山,具有水量大、悬浮物浓度高、重金属浓度高、有机浮选药剂浓度高等明显特征。选矿废水若直接排放,对环境的危害相当大。采用生物接触氧化法对模拟选矿废水进行了处理实验研究,考察了不同工艺条件对苯胺黑药、黄药及乙硫氮等浮选药剂去除效果的影响,结果表明:接触氧化反应器的最佳停留时间为8 h,进水最佳pH为6～7,葡萄糖投加量为0.1 mg/L时,降解效果达到最佳;此外,接触氧化反应器中微生物承受硫化物的浓度可达到120 mg/L。Flotation wastewater comes mainly from non-ferrous metal mines, with a large volume of water, high concentrations of suspended solids, heavy metals and organic wastewater flotation reagent . If flotation wastewater was discharged directly, it would make serious harm to the environment. We.adopted bio-contact oxi- dation to research the ability of biodegradation and the effects of different operational conditions on removal of an- iline aerofloat,butyl xanthate and ethyl thiocarbamate, respectively . The results indicated that the best removal efficiency could be achieved when the optimal retention time was 8 h,the appropriate ranges of pH was 6 -7, the dosage of glucose was 0.1 g/L. Besides, the concentration of sulfide bearing reached 120 mg/L.

关 键 词：生物接触氧化法 浮选药剂 生物降解 影响因素 

分 类 号：X781[环境科学与工程—环境工程]