Optimized hydraulic retention time for phosphorus and COD removal from synthetic domestic sewage with granules in a continuous-flow reactor
作者： Dong Li , Yufeng Lv , Meizhong Cao , Huiping Zeng , Jie Zhang
DOI: 10.1016/J.BIORTECH.2016.05.061
关键词: Pulp and paper industry 、 Enhanced biological phosphorus removal 、 Biology 、 Bioreactor 、 Phosphorus 、 Proteobacteria 、 Segmented filamentous bacteria 、 Betaproteobacteria 、 Environmental engineering 、 Anaerobic exercise 、 Hydraulic retention time
摘要: In continuous-flow reactor (CFR), suboptimal hydraulic retention time (HRT) can affect the substrate loading, anaerobic and aerobic further performance characteristics of granules, thus different HRTs (7.5, 6.0, 4.5 5.2h) were tested to improve phosphorus (P) carbon (COD) removal system with granules in this study. When HRT was below 6.0h, COD efficiency zone P reduced obviously, settling ability EBPR deteriorated. The residual resulted proliferation filamentous bacteria on surface. Pyrosequencing analysis revealed that Proteobacteria dominant phylum system. class transformed from Betaproteobacteria Gammaproteobacteria when 6.0h 4.5h.
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