TREATMENT OF LANDFILL LEACHATE BY PHOTOSYNTHETIC BACTERIA IN SBR SYSTEM AND ANALYSIS ON BIOLOGICAL COMMUNITY STRUCTURE

XU Xin-yu; LI Wei-min; YE Jiang-yu

doi:10.13205/j.hjgc.202001015

Volume 38 Issue 1

Mar. 2020

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(1): 99-104

XU Xin-yu, LI Wei-min, YE Jiang-yu. TREATMENT OF LANDFILL LEACHATE BY PHOTOSYNTHETIC BACTERIA IN SBR SYSTEM AND ANALYSIS ON BIOLOGICAL COMMUNITY STRUCTURE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(1): 99-104. doi: 10.13205/j.hjgc.202001015

Citation:

XU Xin-yu, LI Wei-min, YE Jiang-yu. TREATMENT OF LANDFILL LEACHATE BY PHOTOSYNTHETIC BACTERIA IN SBR SYSTEM AND ANALYSIS ON BIOLOGICAL COMMUNITY STRUCTURE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(1): 99-104. doi: 10.13205/j.hjgc.202001015

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TREATMENT OF LANDFILL LEACHATE BY PHOTOSYNTHETIC BACTERIA IN SBR SYSTEM AND ANALYSIS ON BIOLOGICAL COMMUNITY STRUCTURE

doi: 10.13205/j.hjgc.202001015

Faculty of Urban Construction and Environment Engineering, Chongqing University, Chongqing 400045, China

Received Date: 2018-10-12

Abstract

Abstract

A photosynthetic bacteria R1 with nitrogen and phosphorus removal ability was isolated from the landfill leachate and identified as Rhodopseudomonas palustris. R1 was added to a SBR system to study the effect of strengthening the treatment of landfill leachate and analyze the composition of the bacteria community in the reactor. The results showed that the removal rates of COD, NH₄⁺-N and TP were 76.895%, 65.964% and 94.036%, respectively, in the SBR reactor with photosynthetic bacteria in the experimental group, and the sludge yield was significantly lower than that of the control group. The results of high-throughput sequencing showed that Proteobacteria, Chlorobacteria, Firmicutes, Acidobacteria and Bacteroidetes were the dominant bacteria. Under the combined action of Caldilineaceae, Acinetobacter, Pseudomonas, etc., R1 could not only stably exist in the activated sludge, but also effectively improve the microbial community structure in the activated sludge and improve its nitrogen and phosphorus removal performance.
- activated sludge method,
- landfill leachate,
- photosynthetic bacteria,
- high-throughput sequencing,
- community structure

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References(21)

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