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Study on the Treatment of Eucalyptus Chemi-mechanical Pulp Wastewater by Intimately Coupled Photocatalysis Oxidation and Biodegradation
Received:May 18, 2023  
DOI：10.11980/j.issn.0254-508X.2023.08.016
Key Words:eucalyptus chemi-mechanical pulp  wastewater  detoxification  photocatalysis  biodegradation
Fund Project:国家重点研发计划（2022YFC2105505）；广西清洁化制浆与污染控制重点实验室基金（2021KF13）。
Author NameAffiliationPostcode
TIAN Qingwen Jiangsu Key Lab of Biomass Energy and Material； Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resource； Key Lab of Chemical Engineering of Forest Products， National Forestry and Grassland Administration； National Engineering Lab for Biomass Chemical Utilization， Institute of Chemical Industry of Forest Products， CAF； Nanjing， Jiangsu Province 210042
College of Light Industry and Food Engineering， Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 		530004
ZHU Yawei Jiangsu Key Lab of Biomass Energy and Material； Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resource； Key Lab of Chemical Engineering of Forest Products， National Forestry and Grassland Administration； National Engineering Lab for Biomass Chemical Utilization， Institute of Chemical Industry of Forest Products， CAF； Nanjing， Jiangsu Province 210042 210042
FANG Guigan* Jiangsu Key Lab of Biomass Energy and Material； Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resource； Key Lab of Chemical Engineering of Forest Products， National Forestry and Grassland Administration； National Engineering Lab for Biomass Chemical Utilization， Institute of Chemical Industry of Forest Products， CAF； Nanjing， Jiangsu Province 210042 210042
PAN Aixiang Jiangsu Key Lab of Biomass Energy and Material； Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resource； Key Lab of Chemical Engineering of Forest Products， National Forestry and Grassland Administration； National Engineering Lab for Biomass Chemical Utilization， Institute of Chemical Industry of Forest Products， CAF； Nanjing， Jiangsu Province 210042 210042
GUO Wenliang Datang Nanjing Environmental Protection Technology Co.， Ltd.， Nanjing， Jiangsu Province， 211100 211100
YIN Hang Jiangsu Key Lab of Biomass Energy and Material； Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resource； Key Lab of Chemical Engineering of Forest Products， National Forestry and Grassland Administration； National Engineering Lab for Biomass Chemical Utilization， Institute of Chemical Industry of Forest Products， CAF； Nanjing， Jiangsu Province 210042 210042
SHI Yingqiao Jiangsu Key Lab of Biomass Energy and Material； Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resource； Key Lab of Chemical Engineering of Forest Products， National Forestry and Grassland Administration； National Engineering Lab for Biomass Chemical Utilization， Institute of Chemical Industry of Forest Products， CAF； Nanjing， Jiangsu Province 210042 210042
LIANG Fangmin Jiangsu Key Lab of Biomass Energy and Material； Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resource； Key Lab of Chemical Engineering of Forest Products， National Forestry and Grassland Administration； National Engineering Lab for Biomass Chemical Utilization， Institute of Chemical Industry of Forest Products， CAF； Nanjing， Jiangsu Province 210042 210042
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Abstract:In this paper， the anaerobic wastewater from eucalyptus chemical-mechanical pulp using intimately coupled photocatalysis and biodegradation （ICPB） and Fenton oxidation treatment was explored， and the efficiency， microbial colony structure， and mechanism of ICPB for treating eucalyptus chemical mechanical pulp anaerobic wastewater were studied. The results showed that the biochemical treatment effect of eucalyptus pulping wastewater was poor. ICPB method could significantly improve the aerobic treatment effect of eucalyptus chemi-mechanical pulp wastewater and reduce the dosage of Fenton reagent in the advanced treatment process， which was due to the synergistic effect between photocatalytic oxidation and microbial degradation. The CODCr removal of wastewater in the aerobic treatment process increases from 46.7% to 74.3%. The diversity and richness of microorganisms in ICPB system increased， and the dominant bacteria degrading aromatic compounds increased significantly.
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