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Treatment of Recycled Fiber Papermaking Wastewater with Aerobic Granular Sludge
Received:March 17, 2022  
DOI：10.11980/j.issn.0254-508X.2022.07.007
Key Words:SBBGR  secondary effluent  aerobic granular sludge  microbial community  wastewater treatment
Author NameAffiliationPostcode
LEI Lirong* State Key Lab of Pulp and Paper Engineering， South China University of Technology，Guangzhou，Guangdong Province， 510640 510640
LIN Yipeng State Key Lab of Pulp and Paper Engineering， South China University of Technology，Guangzhou，Guangdong Province， 510640 510640
WANG Caimeng State Key Lab of Pulp and Paper Engineering， South China University of Technology，Guangzhou，Guangdong Province， 510640 510640
LI Guangsheng State Key Lab of Pulp and Paper Engineering， South China University of Technology，Guangzhou，Guangdong Province， 510640 510640
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Abstract:In this study， a sequencing batch biofilter granular reactor （SBBGR） was used to cultivate and domesticate aerobic granular sludge and was applied to treat secondary effluent from recycled fiber paper making wastewater， to investigate the removal of pollutants from the wastewater and to analyze the changes of microbial populations in the reactor. The results showed that the effluent CODCr could be reduced to （95±22） mg/L with a removal rate of （47.7±5.0）% at the influent CODCr and BOD5 of （190±33.4） mg/L and （7.2±1.7） mg/L. The FT-IR and GC-MS analysis showed that SBBGR had effective removal of the characteristic pollutants represented by aromatic compounds. Microbial community analysis showed that the relative abundance of micro organisms with the ability of degrading aromatic compounds in wastewater was increased in the sludge after domestication，and SBBGR had the ability to degrade lignin.
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