【摘要】 利用活性污泥法对制药有机废水进行有机物降解实验。确定了最佳工艺参数:污泥种子为污水处理厂取样的干污泥,加入适量无机盐类,最佳温度20~30℃,培养周期为一周左右,按n(BOD)∶n(N)∶n(P)=100∶5∶1的比例投加氯化铵、磷酸氢二钠营养液,持续供给微生物氧气,控制pH值为6~7。结果表明:培养出来的活性污泥具有较好的生物活性,对于BOD浓度2000~4000mg/L的制药有机污水,总BOD去除率一般在90%以上,出水BOD达到排放标准的50~100mg/L。更多还原

【Abstract】 The optimal conditions were investigated and the activity of the activated sludge was tested.Through studies on factors affecting cultivation,the optimal conditions were selected: sludge was cultivated with necessary inorganic salt at 20～30℃ for more than 7 days [n(BOD)∶n(N)∶n(P)=100∶5∶1],the optimal pH value was 6～7.The results demonstrated that under the above-mentioned conditions,the activated showed a high bioactivity and could be used to treat pharmaceutical wastewater.When treating wastewater with BOD concentration of 2000～4000 mg/L,the BOD removed rate was more than 90%,could meet the BOD standard requirement which was 50～100mg/L.更多还原