摘要
采用序批式颗粒污泥床反应器(SBBGR)培养、驯化好氧颗粒污泥,并应用于处理再生纤维造纸废水二级出水,探讨废水中污染物的去除效果,分析反应器中微生物种群的变化。结果表明,在进水(二级出水) COD_(Dr)和BOD_(5)分别为(190±33.4) mg/L和(7.2±1.7) mg/L条件下,出水COD_(Dr)可降至(95±22) mg/L,去除率为(47.7±5.0)%;红外光谱和气相色谱-质谱联用仪分析表明,SBBGR反应器对芳香族化合物为代表的特征污染物具有良好的降解去除效果;微生物群落分析表明,经过驯化后具有降解废水中芳香族化合物能力的微生物在污泥中的相对丰度提高,SBBGR反应器有降解木质素的能力。
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 COD_(Dr)Could be reduced to(95±22)mg/L with a removal rate of(47. 7±5. 0)% at the influent COD_(Dr)and BOD_(5)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.
作者
雷利荣
林奕鹏
王彩梦
李广胜
LEI Lirong;LIN Yipeng;WANG Caimeng;LI Guangsheng(State Key Lab of Pulp and Paper Engineering,South China University of Technology,Guangzhou,Guangdong Province,510640)
出处
《中国造纸》
CAS
北大核心
2022年第7期46-53,共8页
China Pulp & Paper
关键词
SBBGR
二级出水
好氧颗粒污泥
微生物群落
废水处理
SBBGR
secondary effluent
aerobic granular sludge
microbial community
wastewater treatment
