生物质热解木醋液对活性污泥微生物活性和群落的影响。
Effects of biomass pyrolysis derived wood vinegar on microbial activity and communities of activated sludge.
机构信息
State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Department of New Energy Science and Technology, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
出版信息
Bioresour Technol. 2019 May;279:252-261. doi: 10.1016/j.biortech.2019.01.133. Epub 2019 Jan 29.
The effects of wood vinegar (WVG) on microbial activity and communities of activated sludge were investigated in a sequencing batch reactor (SBR) process. Results showed that the optimal WVG concentration was 4 μL/L when the pollutants removal efficiency and microbial activity were promoted by a WVG dilution factor of 1000. WVG could reduce the increase in microbial species richness, which led to a more notable variety of microbial species diversity. The enhanced microbial activity and communities were addressed to the promotion of 7 main classes of microbes in Proteobacteria, Bacteroidetes, Acidobacteria, and Nitrospirae phyla. The growth of ammonia-oxidizing bacteria (AOB), nitrite-oxidizing bacteria (NOB), and main genera of denitrifying bacteria (DNB), phosphorus-accumulating organisms (PAOs), and glycogen-accumulating organisms (GAOs) could be promoted by WVG, which improved the sewage treatment effectiveness in a SBR.
木醋液（WVG）对活性污泥微生物活性和群落的影响在序批式反应器（SBR）中进行了研究。结果表明，当污染物去除效率和微生物活性通过 WVG 稀释因子 1000 促进时，最佳的 WVG 浓度为 4 μL/L。WVG 可以减少微生物物种丰富度的增加，从而导致微生物物种多样性更加显著。增强的微生物活性和群落归因于在变形菌门、拟杆菌门、酸杆菌门和硝化螺旋菌门中促进了 7 个主要类别的微生物。氨氧化菌（AOB）、亚硝酸盐氧化菌（NOB）以及主要的反硝化细菌（DNB）、聚磷菌（PAO）和糖原积累菌（GAO）的生长可以通过 WVG 得到促进，这提高了 SBR 中的污水处理效果。
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