【摘要】 [目的]探讨微波诱导催化氧化核苷酸废水的最佳条件。[方法]采用微波诱导催化氧化技术预处理核苷酸废水,考察了微波功率、微波时间、氧化剂用量及pH等因素对废水COD去除率及B/C比的影响,通过正交试验分析最佳的试验条件。[结果]各因素对废水COD去除率的影响大小顺序为:复合氧化剂用量、微波功率、微波时间、pH。最佳试验条件为:进水pH=1.0,氧化剂投加量24 g/L,微波功率800 W,微波时间为3 min。在此条件下,核苷酸废水的COD去除率达78.2%,B/C比由0.005升至0.150,可生化性提高了30倍。[结论]该研究为核苷酸生产废水的处理提供了理论依据。更多还原

【Abstract】 [Objective]The study aimed to discuss the optimal conditions for the treatment of nucleotide wastewater by microwave induced oxidation process. [Method]Nucleotide wastewater was treated by microwave induced oxidation process,and the effects of microwave power,microwave time,oxidant dosage and pH on the removal rate of COD and B/C ratio as well as the optimal conditions were discussed through an orthogonal test. [Result]Oxidant dosage affects the removal rate of COD most greatly,followed by microwave power and time,while the impact of pH is the smallest. The best conditions are as follows: pH = 1. 0,oxidant dosage 24 g/L,microwave power 800 W,and microwave time 3min. Under the best conditions,the removal rate of COD reaches 78. 2%,and B/C ratio increases from 0. 005 to 0. 150,that is,the biodegradability rises by 30 times. [Conclusion]The research can provide scientific references for the treatment of nucleotide wastewater in future.更多还原