化工环保2017，Vol.37Issue(3)：315-319,5.DOI:10.3969/j.issn.1006-1878.2017.03.011
臭氧氧化法连续处理焦化废水生化出水
Advanced treatment of coking wastewater by ozone oxidation under continuous operation
摘要
Abstract
The biochemical effluent from coking wastewater with 151-183 mg/L of COD and about 8 ofpH was treated by ozone oxidization process with continuous inflow of wastewater and ozone.And the mechanism of ozone oxidation was explored by adding tert-butanol as hydroxyl radical inhibitor.Under the optimum conditions of ozone amount 12.15 mg/L,wastewater flow 2 mL/min and without wastewater pH adjustment,the COD removal rate reached 54.5％ and the effluent COD met the national wastewater discharge standard GB 16171-2012.When the system was stable,741.1 mg ozone was needed to degrade 1 kg COD.During the ozone oxidation process,both ozone self-oxidation and free hydroxyl radical oxidation were existed,in which the latter one was the primary oxidation reaction.The reaction process accorded with pseudo first order kinetics model with 0.01 min-1 of reaction rate constant.关键词
臭氧氧化/焦化废水/深度处理/反应动力学Key words
ozone oxidation/coking wastewater/advanced treatment/reaction dynamics分类
资源环境引用本文复制引用
孟冠华,邱菲,方玲,司晨浩..臭氧氧化法连续处理焦化废水生化出水[J].化工环保,2017,37(3):315-319,5.基金项目
安徽省科技攻关计划项目(11010401010). （11010401010）
