SBR法处理选矿废水的影响因素研究

Study on influencing factors of flotation wastewater treatment with SBR method

为考察硫化矿浮选废水生物降解效能,采用序批式生物反应器(SBR)研究浮选废水的降解能力,探讨不同的运行条件对苯胺黑药、黄药及乙硫氮去除效果的影响。结果表明:经过24 d的培养驯化,浮选药剂的降解达到预期效果;SBR在HRT为2 h,pH在6～7之间,葡萄糖投加量为0.1 g/L时,降解效果达到最佳;除此以外活性污泥对硫化物承受浓度可达到120 mg/L。

In order to investigate the biodegradation effectiveness of flotation wastewater,the sequencing batch reactor（SBR） was adopted to study the ability of biodegradation,and the effects of different operational conditions on removal of aniline aerofloat,butyl xanthate and ethyl thiocarbamate were investigated,respectively.The results indicated that the SBR was successfully set up after 24 days’operation,the best removal efficiency could be achieved when the optimal retention time was 2 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.