摘要：
江苏南通某化学品有限公司的苯醚甲环唑生产废水呈高COD、高氨氮、高有机氮的特点。将电催化Fenton氧化与管式电化学反应器耦合，形成“电催化Fenton氧化+电化学氧化”的工艺路线脱除废水中的COD、总氮、有机氮。实验结果表明：该组合工艺可以有效地将废水中难以去除的有机氮转化为氨氮和硝态氮。优化条件下，有机氮去除率达83.4%，COD去除率达54.0%，总氮去除率达54.5%，B/C从0.1提高至0.33，处理后废水的可生化性得到大幅度提高。
关键词:
苯醚甲环唑,
电催化Fenton氧化,
电化学氧化,
高有机氮
Abstract:
The wastewater from difenoconazole production in Jiangsu Nantong Chemical Co., Ltd., is characterized by high COD, high ammonia nitrogen and high organic nitrogen. The electrocatalytic Fenton oxidation is coupled with the tubular electrochemical oxidation to form a process route of 'electrocatalytic Fenton oxidation+electrochemical oxidation' to remove COD, total nitrogen and organic nitrogen in the wastewater. The test results show that the combined process can effectively convert the organic nitrogen which is difficult to remove in wastewater into ammonia nitrogen and nitrate nitrogen. Under optimal conditions, the organic nitrogen removal rate is 83.4%, the COD removal rate is 54.0%, and the total nitrogen removal rate is 54.5%. The B/C increases from 0.1 to 0.33, which indicates the biodegradability of the treated wastewater is greatly improved.
Key words:
difenoconazole,
electrocatalytic Fenton oxidation,
electrochemical oxidation,
high organic nitrogen
中图分类号:
邵星宇,朱伟,何斌,刘润. 电Fenton和电化学氧化组合工艺处理苯醚甲环唑废水[J]. 工业水处理, 2020, 40(6): 56-59.
Xingyu Shao,Wei Zhu,Bin He,Run Liu. Treatment of wastewater from difenoconazole production by a combined process of electrocatalytic Fenton oxidation and electrochemical oxidation[J]. Industrial Water Treatment, 2020, 40(6): 56-59.