【摘要】 [目的]为实现乙呋草黄生产废水的有效治理,开展该废水的预处理实验研究。[方法]采用催化湿式氧化技术进行连续式预处理,考察不同的工艺条件对废水处理效果的影响。[结果]通过条件实验确定最佳的工艺条件:进水CODCr 43 200 mg/L,反应温度240℃,反应压力4.5 MPa,停留时间1 h,催化剂CuSO4用量0.75 mmol/L。在该工艺条件下,乙呋草黄生产废水的CODCr去除率达到85.6%,脱色率>99%,BOD5/CODCr由氧化前的0.08提高至0.46。[结论]催化湿式氧化技术是治理乙呋草黄生产废水的有效预处理技术。更多还原

【Abstract】 [Aims]In order to achieve the effectivetreatment of production wastewater of Ethofumesate,the experimental study of pretreatment was carried out.[Methods]Continuous pretreatment was carried outby the technology of catalytic wet air oxidation（WAO）,the effect on wastewater treatmentof different process conditions was studied.[Results]The optimum process conditions were determined by condition tests as follows:influent COD_Cr 43 200 mg/L,reaction temperature 240℃,reaction pressure 4.5 MPa,residence time 1 h,dosage of catalyst CuSO4 0.75 mmol/L.Under these conditions,the removal rate of COD（Cr） can reach 85.6%,thedecolourization rate can reach more than 99%and the biodegradability of the waste water significantly improve as BOD/COD（Cr） can beincreased from 0.08 to 0.46.[Conclusions]The results showed that the technology of catalytic wet air oxidation is effective for pretreating ethofumesate production wastewater.更多还原