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Migration and Occurrence of Adsorbable Organic Halides in Pulp and Paper Wastewater
Received:November 22, 2022  
DOI：10.11980/j.issn.0254-508X.2023.06.009
Key Words:pulp and paper wastewater  AOX  sludge  extracellular polymeric substance  pollutant migration
Fund Project:国家自然科学基金（22208066）；南宁市创新创业领军人才“邕江计划”项目（2019003）。
Author NameAffiliationPostcode
HUANG Wei School of Resources， Environment and Materials， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 530004
ZHAO Mingyang College of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 530004
WANG Shuangfei College of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 530004
YANG Qifeng Guangxi Bossco Environmental Protection Technology Co.， Nanning， Guangxi Zhuang Autonomous Region， 530007 530007
TANG Lin College of Environmental Science and Engineering， Hu’nan University， Changsha， Hu’nan Province， 410082 410082
ZHANG Jian* College of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004
College of Environmental Science and Engineering， Hu’nan University， Changsha， Hu’nan Province， 410082 		410082
LIANG Chen College of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 530004
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Abstract:Wastewater and sludge samples were collected from two pulp and papermaking enterprises to explore the path of adsorbable organic halides （AOX） removal during wastewater treatment process and its microscopic occurrence in sludge. The results showed that the terminal AOX concentration of pulp and paper wastewater was lower than 1.0 mg/L. AOX was mainly removed through biochemical treatment， and the residual sludge played an important role in AOX migration. Sludge adsorbed 21.1%~24.8% of total AOX from influent， and the adsorbed AOX concentrated in the sludge cell phase and extracellular polymeric substance （EPS）.
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