ZHONGWen-jie,XULiu-cheng,YUANHao-tian,et al.Rotating Biological Contactor-Two-stage A/O-MBR Process for Treatment of Mature Landfill Leachate: Efficiency and Microbial Community Structure[J].China Water & Wastewater,2023,39(1):19-25.
Rotating Biological Contactor-Two-stage A/O-MBR Process for Treatment of Mature Landfill Leachate: Efficiency and Microbial Community Structure
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第1期
Page:
19-25
Column:
Date of publication:
2023-01-01
- Keywords:
- mature landfill leachate; rotating biological contactor; two-stage A/O; MBR; microbial community structure
- Abstract:
- Aiming at the problems of poor biodegradability and significant reduction of carbon nitrogen ratio of mature landfill leachate, rotating biological contactor-two-stage A/O-MBR was used to treat the mature landfill leachate of a landfill in Guangdong Province. The experiment focused on the treatment efficiency of the combined process for mature landfill leachate. During the operation period of the combined process, the average removal rates of COD, NH4+-N and TN were 57.20%, 98.90% and 95.47%, respectively. High-throughput sequencing results showed that Proteobacteria was the most dominant bacteria at the phylum level, and the relative abundances in activated sludge and biofilm attached on rotating biological contactor were 36.56% and 62.50% respectively. The relative abundances of unclassified_f__Methylophilaceae and Hyphomicrobium in activated sludge and biofilm, which could use external carbon source for denitrification, were 17.05%, 23.11% and 4.78%, 12.22%, respectively.
Last Update:
2023-01-01