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| Construction for Coupling System of Photocatalysis-microbial Film and Its Treatment for ECF Bleaching Wastewater |
| Received:June 21, 2021 |
| DOI：10.11981/j.issn.1000-6842.2022.01.87 |
| Key Words:ECF bleaching wastewater;photocatalysis coupling biological method;white rot fungus;activated sludge;physicochemical properties |
| Fund Project:国家自然科学基金（No.21968005）；国家自然科学基金（No. 31860193）；广西八桂学者专项经费（ZR201702）资助。 |
| Author Name | Affiliation | Postcode | | LIANG Yinna* | School of Resources， Environment and Materials， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 | 530004 | | XIONG Jianhua | School of Resources， Environment and Materials， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004
Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control， Nanning， Guangxi Zhuang Autonomous Region， 530004 | 530004 | | WANG Shuangfei | Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control， Nanning， Guangxi Zhuang Autonomous Region， 530004 | 530004 | | YANG Qifeng | Guangxi Bossco Environmental Protection Technology Co.， Ltd.， Nanning， Guangxi Zhuang Autonomous Region， 530007 | 530007 |
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| Abstract: |
| In this study， the visible light-induced intimately coupled photocatalysis and biodegradation （ICPB） system was constructed by using bagasse cellulose/TiO2 composite as carrier， white rot fungus mixed activated sludge as biological source， single white rot fungus and single activated sludge as controls， to explore the physical and chemical characteristics and wastewater treatment efficiency of different ICPB systems in the domestication process. The results showed that the ICPB system constructed by white rot fungus mixed with activated sludge had good physical and chemical properties， i.e.， the values of MLSS， SVI， and PN/PS after domestication were 6~8 g/L， 60~85 mL/g， and 1.61， respectively. The removal rates of AOX， CODCr， and DOC reached 92%， 77%， and 75%， which were higher than those of the controls. The addition of dominant bacteria is beneficial to enhance the degradation effect of ICPB system and this study provides a new idea for efficient treatment of ECF bleaching wastewater. |
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