摘要
针对某炼化企业反渗透(RO)浓水进行臭氧氧化与活性炭催化臭氧氧化的静态实验研究。考察臭氧氧化中p H与反应时间对处理效果的影响,结果表明,在p H=8.14,反应时间为40 min时,COD去除率可达45%。对活性炭进行3种方式改性,结果表明,双氧水改性活性炭的催化效果最好。分别测定各工艺出水B/C值,发现催化臭氧氧化出水的B/C值为0.38,而仅单独臭氧氧化出水的B/C值就可高达0.54,鉴于催化臭氧氧化出水COD并未达排放标准,可以考虑采取臭氧氧化作为生化单元的预处理工艺。
Static experiments of treating the reverse osmosis concentrated water from a petrochemical enterprise by ozonation and activated carbon catalytic ozonation methods are separately carried out. The effects of p H and reaction time on the ozone oxidation are investigated. The results show that the removal rate of COD can be up to 45% when p H is8. 14 and the reaction time is 40 min. The modification of activated carbon is performed by three methods. The catalytic effect of hydrogen peroxide modified activated carbon is the best. The B / C value of the effluent treated by activated carbon catalytic ozonation technology is 0. 38. However,the B / C value of the effluent treated single ozonation is as high as 0. 54,indicating that the COD of the effluent treated by single ozonation method does not reach the emission standard.So,the ozonation step can be used as pretreatment process of biochemical unit.
出处
《现代化工》
CAS
CSCD
北大核心
2016年第3期58-61,共4页
Modern Chemical Industry
关键词
催化臭氧氧化
RO浓水
活性炭改性
可生化性
catalytic ozonation
the reverse osmosis concentrated water
modification of activated carbon
biodegradability
作者简介
白小霞（1991-），女，硕士生，研究方向为活性炭催化臭氧氧化炼厂反渗透浓水的研究，bxx910117@163．com
杨庆（1974-），男，博士，教授，从事水污染控制与处理研究，通讯联系人，yangq@mail．lzjtu．cn。
