Effects of carbon-to-sulfur (C/S) ratio and nitrate (N) dosage on Denitrifying Sulfur cycle-associated Enhanced Biological Phosphorus Removal (DS-EBPR).
作者： Mei Yu , Hui Lu , Di Wu , Qing Zhao , Fangang Meng
DOI: 10.1038/SREP23221
关键词:
摘要: In this study, the Denitrifying Sulfur cycle-associated Enhanced Biological Phosphorous Removal (DS-EBPR) with 20 mg P/L/d of volumetric P removal rate was successfully achieved in a Sequencing Batch Reactor (SBR). The effects carbon-to-sulfur (C/S) mass ratio and nitrate (N) dosage were investigated through two batch tests to reveal role wastewater compositions DS-EBPR performance. optimal specific release uptake rates (0.4 2.4 mg P/g VSS/h, respectively) at C/S/P/N 150/200/20/20, poly-S is supplied as potential electron energy storage. range 10–50 mg N/L had no significant influence on (2.1 ~ 2.4 mg VSS/h), but significantly affected storage inclusion poly-S, oxidation increased about 16% while dosing from 20 30 mg N/L. It implies that denitrified phase, excess further consumed by poly-S. Moreover, microbial analysis showed functional bacteria should mostly belong denitrifying or Unclassified genera.
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