3种一体式臭氧-BAF工艺对石化废水生化出水有机物去除特性比较研究

付丽亚; 吴昌永; 周鉴; 罗晋; 左剑恶; 周岳溪

doi:10.12153/j.issn.1674-991X.20200061

3种一体式臭氧-BAF工艺对石化废水生化出水有机物去除特性比较研究

doi: 10.12153/j.issn.1674-991X.20200061

付丽亚^1,2,3,,
吴昌永^1,2,
周鉴⁴,
罗晋⁵,
左剑恶³,
周岳溪^1,*, ,

1.
环境基准与风险评估国家重点实验室,中国环境科学研究院
2.
中囯环境科学研究院环境污染控制工程技术研究中心
3.
清华大学环境学院
4.
中国石油吉林石化污水处理厂
5.
北控水务(中国)投资有限公司

详细信息

作者简介:
付丽亚(1986—),女,助理研究员,博士,主要从事水污染控制技术研究,liyafu1115@163.com

通讯作者:
周岳溪 E-mail: zhouyuexi@263.com

中图分类号: X703.1
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出版历程
- 收稿日期: 2020-03-24
- 刊出日期: 2021-01-20

Comparison study of organics removal characteristics by three kinds of integrated ozone-BAF processes treating biochemical effluent of petrochemical wastewater

FU Liya^{1,2,3
,},
WU Changyong^1,2,
ZHOU Jian⁴,
LUO Jin⁵,
ZUO Jian’e³,
ZHOU Yuexi^{1,*
, ,}

1.
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences
2.
Research Center of Environmental Pollution Control Engineering Technology, Chinese Research Academy of Environmental Sciences
3.
School of Environment, Tsinghua University
4.
Jilin Petrochemical Wastewater Treatment Plant, PetroChina Jilin Petrochemical Company
5.
Beijing Enterprises Water Group (China) Investment Co., Ltd.

More Information

Corresponding author: ZHOU Yuexi E-mail: zhouyuexi@263.com

摘要

摘要: 一体式臭氧-曝气生物滤池(biological aerated filter, BAF)是工业废水臭氧氧化深度处理节能降耗的潜在工艺,但臭氧氧化方式对该组合工艺处理效果的影响目前鲜见报道。研究了单独臭氧、臭氧/双氧水和臭氧/催化剂3种臭氧氧化方式下一体式臭氧-BAF工艺对石化废水生化出水有机物的处理效果,并结合出水有机物分子量分布和三维荧光区域积分变化及BAF微生物形貌、生物量和生物活性等,分析有机物去除特性。结果表明:单独臭氧方式下,优化臭氧投加量为5 mg/L,出水平均COD为55.7 mg/L;臭氧/双氧水方式下,出水COD会有一定程度积累;臭氧/催化剂方式下,优化臭氧投加量为5 mg/L时,出水平均COD为39.5 mg/L,去除率为39.9%,出水COD能稳定达标(GB 31571—2015《石油化学工业污染物排放标准》)。单独臭氧方式下,出水中分子量≤1 300 Da和3 000~6 000 Da的有机物增加,生物量降低68.3%;臭氧/双氧水方式下,出水中分子量≤800 Da的有机物增加,生物量降低60%以上;臭氧/催化剂方式出水大部分分子量范围的有机物都能被去除,生物量削减48.3%,且生物活性提高106.4%,溶解性微生物代谢副产物和类腐殖酸等降解优势明显。
- 石化废水 /
- 臭氧 /
- 催化剂 /
- 曝气生物滤池(BAF) /
- 深度处理 /
- 排阻色谱 /
- 荧光光谱
Abstract: The integrated ozone-biological aerated filter (BAF) is a potential energy-saving process for advanced treatment of industrial wastewater treatment by ozonation. However, there were few reports on the influences of the ozonation technology on the treatment effects of integrated ozone-BAF. The treatment effect of integrated ozone-BAF process on the biochemical effluent of petrochemical wastewater was studied under three kinds of ozonation methods: ozone alone, ozone/H₂O₂ and ozone/catalyst. Molecular weight distribution of effluent organic matter, three-dimensional fluorescence regional integration change, BAF microbial morphology, biomass and biological activity were helped to explore the removal characteristics of organic matter. The results showed that the average chemical oxygen demand (COD) was 55.7 mg/L at the optimal ozone dosage of 5 mg/L in single ozone-BAF technology. COD accumulated to a certain extent by the ozone/H₂O₂-BAF technology. The average COD achieved to 39.5 mg/L (removal rate was 39.9%) at the optimal ozone dosage of 5 mg/L in ozone/catalyst-BAF technology, and effluent COD could meet Emission Standard of Pollutants for Petroleum Chemistry Industry (GB 31571-2015) stably. In single ozone-BAF technology, organics with molecular weight ≤1 300 Da and 3 000-6 000 Da increased, the biomass decreased by 68.3%. In ozone/H₂O₂-BAF technology, organics with molecular weight ≤800 Da increased, and the biomass decreased by over 60.0%. In the ozone/catalyst-BAF technology, almost the organics with whole range of molecular weight were removed, the biomass reduced by 48.3%, and the bioactivity increased by 106.4%. Soluble microbial by-products and humic acids were removed significantly by the ozone/catalyst-BAF technology.
- petrochemical wastewater /
- ozone /
- catalyst /
- biological aerated filter (BAF) /
- advanced treatment /
- size exclusion chromatography /
- fluorescence spectroscopy

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