电絮凝工艺的毛纺废水深度处理效能影响及优化研究  

Efficiency effect and optimization of tertiary treatment of wool scouring wastewater in electrocoagulation process

作　　者：吴佳华 张国智 张海峰 施雪卿 赵飞 王羚 WU Jiahua;ZHANG Guozhi;ZHANG Haifeng;SHI Xueqing;ZHAO Fei;WANG Ling(School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266525,China)

机构地区：[1]青岛理工大学环境与市政工程学院,青岛266525

出　　处：《青岛理工大学学报》2025年第1期96-102,共7页Journal of Qingdao University of Technology

基　　金：山东省自然科学基金青年项目(ZR2020QE236)。

摘　　要：为了研究毛纺废水中生物处理后难降解化学需氧量(COD)和总氮(TN)强化处理问题,利用电絮凝技术对毛纺废水进行深度处理,通过操作条件优化及响应面法实验,强化生物单元尾水中难降解的COD和TN的去除效能。结果表明,使用铁电极、初始pH值为6、电流密度大于35 mA/cm^(2)更有利于电絮凝去除污染物,反应时间30~60 min去除率较高且能耗合理。由响应面法分析,在最佳条件下COD和TN去除率分别为57.8%和19.4%,实验验证证明模型预测良好。三维荧光光谱分析显示,经过电絮凝后荧光强度明显减小,进一步说明其对有机物的削减效果显著。To study the enhanced treatment of refractory chemical oxygen demand(COD)and total nitrogen(TN)after biological treatment in wool scouring wastewater,electrocoagulation technology was used for tertiary treatment in this work.Through the optimization of operating conditions and the response surface method experiments,the removal efficiency of refractory COD and TN in the tailwater of biological units was improved.The results demonstrated that using iron electrodes,maintaining the initial pH of 6,utilizing a current density greater than 35 mA/cm^(2) were favorable conditions for the effective removal of contaminants through electrocoagulation;the rate of removal was significantly higher and the energy consumption was reasonable during a reaction period of 30 to 60 minutes.According to the analysis by response surface method,the removal rates of COD and TN were 57.8%and 19.4%respectively under optimal conditions.The verification experiment demonstrated that the model predicted accurately.Three dimensional fluorescence spectroscopy revealed a significant reduction in the fluorescence intensity after electrocoagulation,further exhibiting its substantial effect on reducing organic matter.

关 键 词：电絮凝 毛纺废水 响应面分析 

分 类 号：X703[环境科学与工程—环境工程]