ClO_2催化氧化处理土霉素废水处理站二级出水  

Treatment of secondary effluent of oxytetracycline wastewater treatment plant by chlorine dioxide catalytic oxidation

作　　者：李再兴[1] 刘焕[1] 刘艳芳[1] 李伟[1] 李贵霞[1] 赵俊娜[1] 周崇晖 王勇军 

机构地区：[1]河北科技大学环境科学与工程学院,河北石家庄050018 [2]华北制药集团有限责任公司环境保护研究所,河北石家庄050015

出　　处：《河北科技大学学报》2013年第4期365-369,共5页Journal of Hebei University of Science and Technology

基　　金："十一五"国家水体污染控制与治理科技重大专项(2008ZX07529-006)

摘　　要：以土霉素废水处理站二级出水为研究对象,二氧化氯(ClO2)为氧化剂,以自制活性炭负载铜氧化物(CuOx-AC)催化剂进行ClO2催化氧化试验研究。试验结果表明,ClO2催化氧化最佳反应条件为初始反应pH值为7.0、ClO2投加量为0.24g/L(折纯,质量浓度)、催化剂投加量为50g/L(质量浓度)和反应时间为30min。在此条件下,废水COD的质量浓度由472.7～523.4mg/L降至301.2～340.1mg/L,COD去除率在35%左右,但废水B/C值由0.04～0.07提高至0.21～0.24,可生化性显著提高,为进一步采取生化处理工艺实现废水达标排放奠定了基础。Secondary effluent of oxytetracycline wastewater treatment plant is treated by C1Oz with CuO,-AC as catalyst. The results show that the optimal reaction conditions are as follows： pH value 7.0, C1Oz dosage 0.24 g/L,catalyst dosage 50 g/L and reaction time 30 rain. Under these conditions, COD is decreased from 472.7-523.4 mg/L to 301.2-340.1 mg/L and the removal efficiency is about 35 %. The B/C value is increased to 0.21-0.24 from 0.04-0.07, and the biodegradability is im- proved, which is beneficial to further biological treatment and to meet the discharge standards.

关 键 词：土霉素废水 二级出水 CLO2 催化氧化 可生化性 

分 类 号：X703.1[环境科学与工程—环境工程]