微气泡催化臭氧化-生化耦合工程装置运行性能

doi:10.11894/iwt.2019-0834

工业水处理 ›› 2020, Vol. 40 ›› Issue (8): 32-37. doi: 10.11894/iwt.2019-0834

微气泡催化臭氧化-生化耦合工程装置运行性能

施佳泽^1,²(),张磊^1,²,张静^1,²,刘春^1,^2,*(),陈晓轩^1,²,郭延凯^1,²

1. 河北科技大学环境科学与工程学院, 河北石家庄 050018
2. 河北省污染防治生物技术重点实验室, 河北石家庄 050018

收稿日期:2020-06-01 出版日期:2020-08-20 发布日期:2020-08-26
通讯作者: 刘春 E-mail:824373215@qq.com;liuchun@hebust.edu.cn
作者简介:施佳泽(1995-), 硕士研究生。电话:18330820238, E-mail:824373215@qq.com
基金资助:
河北省自然科学基金项目(E2019208418)

Performance of full-scale combination system of microbubble catalytic ozonation and biological treatment

Jiaze Shi^1,²(),Lei Zhang^1,²,Jing Zhang^1,²,Chun Liu^1,^2,*(),Xiaoxuan Chen^1,²,Yankai Guo^1,²

1. School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
2. Pollution Prevention Biotechnology Laboratory of Hebei Province, Shijiazhuang 050018, China

Received:2020-06-01 Online:2020-08-20 Published:2020-08-26
Contact: Chun Liu E-mail:824373215@qq.com;liuchun@hebust.edu.cn

摘要/Abstract

摘要：

采用首例微气泡催化臭氧化—生化耦合工程装置深度处理煤化工废水，对其长期连续运行性能进行评估。结果表明，该工程装置能够稳定可靠运行，微气泡催化臭氧化可有效降解大分子有机污染物并改善废水可生化性，耦合生化处理可进一步去除小分子产物。较优运行条件下，整体COD去除率为57.5%，臭氧投加量/COD去除量为0.63。生化处理中细菌种群受有机污染物变化和DO浓度影响较大。该工程装置为微气泡催化臭氧化-生化耦合工艺实际应用提供了良好示范。

关键词: 微气泡, 催化臭氧化, 生化处理, 工程装置, 煤化工废水

Abstract:

The first full-scale combination system of microbubble catalytic ozonation and biological treatment was used for advanced treatment of coal chemical wastewater, and its performance during a continuous long-term operation was evaluated. The results showed that the combination system could operate stably and reliably. Macromolecular organic pollutants were degraded effectively and the biodegradability was improved in microbubble catalytic ozonation, and the generated small-molecular products were removed in the coupling biochemical treatment. The total COD removal efficiency was 57.5% and the ratio of ozone dose to COD removal amount was 0.63 under the optimal conditions. Bacterial populations in biochemical treatment were influenced by variation of organic pollutants and DO concentration. This full-scale combination system can provide a good demonstration for real application of microbubble catalytic ozonation and biochemical coupling treatment process.

Key words: microbubble, catalytic ozonation, biological treatment, full-scale device, coal chemical wastewater

中图分类号:

X703

施佳泽,张磊,张静,刘春,陈晓轩,郭延凯. 微气泡催化臭氧化-生化耦合工程装置运行性能[J]. 工业水处理, 2020, 40(8): 32-37.

Jiaze Shi,Lei Zhang,Jing Zhang,Chun Liu,Xiaoxuan Chen,Yankai Guo. Performance of full-scale combination system of microbubble catalytic ozonation and biological treatment[J]. Industrial Water Treatment, 2020, 40(8): 32-37.

https://www.iwt.cn/CN/Y2020/V40/I8/32

图/表 9

图1 耦合工艺系统工程装置

表1 微气泡催化臭氧化—生化耦合工程装置运行条件

阶段	运行时间/d	处理水量/（m³·d^-1）	HRT/h		进水COD负荷/（kg·m^-3·d^-1）	臭氧投加量/进水COD
阶段	运行时间/d	处理水量/（m³·d^-1）	MOR	BR	进水COD负荷/（kg·m^-3·d^-1）	臭氧投加量/进水COD
Ⅰ	13	48	2.0	6.0	1.99	0.42
Ⅱ	13	84	1.1	3.3	3.67	0.37
Ⅲ	34	120	0.80	2.4	5.52	0.37
Ⅳ	30	200	0.48	1.4	8.38	0.40

图2 MOR对COD的去除性能

图3 BR对COD的去除性能

图4 MOR的UV₂₅₄去除性能

图5 BR对UV₂₅₄的去除性能

图6 BR对氨氮的去除性能

表2 不同高度生物膜样品各分类水平的细菌种群数

样品	门	纲	目	科	属
接种污泥	32	61	126	154	200
上部生物膜	20	44	77	96	147
中部生物膜	20	45	86	107	157
下部生物膜	22	51	102	123	170

图7 不同高度生物膜样品中门水平（a）和属水平（b）的细菌相对丰度

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