混合炸药废水的厌氧处理研究

对混合炸药废水的一般特性进行了分析,采用生物测试技术对废水的厌氧生化可降解性进行试验研究,同时采用上流式厌氧污泥床反应器(UASB)进行连续厌氧生物处理研究.研究结果表明,该废水氮、磷营养物缺乏,碱度偏低,废水处理时按CODBD、氮、磷为(300~500)∶5∶1的比例添加氮、磷元素.废水厌氧生化降解率为90%,含有的难降解污染物黑索今可通过厌氧方法降解;废水经UASB处理后,出水黑索今浓度低于5.0mg/L,平均去除率为88%;COD去除率约70%,在厌氧反应器运行过程中,应注意出水挥发性脂肪酸VFA浓度的监测.

Study on anaerobic treatment of hybrid explosive wastewater

Based on the analysis of the characteristics of hybrid explosive wastewater, the anaerobic biodegradability of the wastewater is tested using a new bioassay technique. The test is carried out in an upflow anaerobic sludge bed (UASB), which is a continuous anaerobic treatment reactor. The test results show that, the wastewater is lack of alkalinity and nutrients such as nitrogen and phosphorus, nitrogen and phosphorus elements should be added according to the proportion of CODED: N:P = (300-500) :5:1 when the wastewater is treated; the anaerobic biodegradation degree of the wastewater is 90% ; the removal rate of RDX in the wastewater which is hard to degraded is 88% , the concentration of RDX in the treated wastewater is less than 5.0 mg/ L; the removal rate of COD is about 70% ; the concentration of volatile fatty acid should be monitored in the anaerobic treatment of the wastewater.