摘要
针对传统铁碳微电解装置存在的偏流、堵塞、填料板结等问题,提出了相应的解决方法及措施,对装置结构进行优化改进,并进行了现场中试实验。通过在装置内部增加挡圈防止设备偏流,增设废水内循环工艺防止设备堵塞,改变填料的结构防止设备板结。采用改进型铁碳微电解设备处理青岛某电镀废水,稳定运行120 d出水平均值ρ(Cr6+)为0.03 mg/L,ρ(Cr)为0.04 mg/L,ρ(Zn^(2+))为0.12 mg/L,ρ(Cu^(2+))为0.67 mg/L,达到了GB 21900—2008《电镀废水排放标准》的要求,且设备运行稳定可靠。
The article analyzed the shortcomings of the conventional micro-electrolysis,such as bias current,jams,packing harden,and the solution to optimize the structure of the device was provided based on the experiment. The retaining ring inside was used to prevent equipment drift. The circulating was added to prevent equipment congestion. The appearance of packing structure was changed to prevent equipment harden. Then the pilot test was carried out to treat the electroplating wastewater from Qingdao City by the improved iron-carbon micro electrolysis process. The equipment was in operation for 120 days. the average effluence of Cr（ Ⅵ）,total Chromium,Zn^（2＋）and Cu^（2＋）was 0. 03,0. 04,0. 12,0. 67 mg / L. The effluence reached the requirements of the ＂Electroplating Wastewater Discharge Standard ＂（ GB 21900—2008）,and the equipment operation was stable and reliable.
出处
《环境工程》
CAS
CSCD
北大核心
2015年第12期39-42,48,共5页
Environmental Engineering
基金
河北省科技支撑计划重点项目(15273607D)
关键词
铁碳微电解
填料
结构改进
电镀废水
iron-carbon micro-electrolysis
structure modification
electroplating wastewater
