Abstract:
Taking COD as an investigating target,heterogeneous catalytic ozonation process has been used for treating drilling wastewater.The effects of influencing factors,such as catalyst dosage,ozone dosage,pH,reaction time,etc.on COD removing efficacy are investigated. The experiment results indicate that the treatment effect of heterogeneous catalytic ozonation process on drilling wastewater is the most effective one,when catalyst dosage is 50 mg/L,ozone dosage 8.0 mg/min,initial pH 11 and reaction time 30 min.Under the above conditions，the removing rate of COD reaches 88.7%,and effluent COD reduces to 141.70 mg/L,which can meet the requirements of the second-grade Integrated Wastewater Discharge Standard（GB 8978—1996）.
Key words:
heterogeneous catalysis,
ozone,
metal catalysts,
drilling wastewater
摘要：
以COD为考察目标,采用多相催化臭氧化技术对钻井废水进行处理试验。考察了催化剂投加量、臭氧投加量、pH、反应时间等因素对COD去除效果的影响。试验结果表明:在催化剂投加质量浓度为50 mg/L,臭氧投加量为8.0mg/min,pH=11和反应时间为30 min时,多相催化臭氧化技术对钻井废水处理效果最好,COD去除率达到88.7%,出水COD降至141.70 mg/L,达到了《污水综合排放标准》(GB 8978—1996)二级标准。
关键词:
多相催化,
臭氧,
金属催化剂,
钻井废水
CLC Number:
Yang Demin, Yuan Jianmei, Wu Xiaojuan, Xiang Xiangrong, Wang Bing. Investigation on the treatment of drilling wastewater by heterogeneous catalytic ozonation process[J]. INDUSTRIAL WATER TREATMENT, 2013, 33(7): 58-61.
杨德敏, 袁建梅, 吴小娟, 向祥蓉, 王兵. 多相催化臭氧化技术处理钻井废水的试验研究[J]. 工业水处理, 2013, 33(7): 58-61.