Sewage treatment effect of AOA-SBR under different C/P value and its mechanism of nitrogen and phosphorus removal

Nie, Zebing; Huo, Mingxin; Li, Qingzhe; Shi, Xueying; Ma, Yunguang; Yu, Gui; Zhu, Suiyi; Ai, Shengshu; Wang, Fan; Bian, Dejun

doi:10.1016/j.jwpe.2022.102774

Cited by 12 publications

(1 citation statement)

References 20 publications

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“…It also suggests that as the PAC dosage increases, its optimization effect on the EQI dwindles. These two points match with the findings [24,30]. By adding a small amount of ECR, the EQI values have a certain decrease, but with the increase in the dosage, the EQI values will turn to increase (Figure 3c).…”

Section: Effect Of Operational Parameters On the Operation Cost Index...supporting

confidence: 87%

Multi-Objective Optimization Based on Simulation Integrated Pareto Analysis to Achieve Low-Carbon and Economical Operation of a Wastewater Treatment Plant

Liao,

Li,

Liu

et al. 2024

Water

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It is essential to reduce carbon emissions in wastewater treatment plants (WWTPs) to achieve carbon neutrality in society. However, current optimization of WWTPs prioritizes the operation cost index (OCI) and effluent quality index (EQI) over greenhouse gas (GHG) emissions. This study aims to conduct a multi-objective optimization of a WWTP, considering GHG emissions, EQI, and OCI. The anaerobic-anoxic-oxic integrated membrane bioreactor (AAO-MBR) process in an actual WWTP was selected as a typical case, tens of thousands of scenarios with combinations of six operational parameters (dissolved oxygen (DO), external carbon resource (ECR), poly aluminum chloride (PAC), internal reflux ratio (IRR), external reflux ratio (ERR), and sludge discharge (SD)) were simulated by GPS-X software (Hydromantics 8.0.1). It was shown that ECR has the greatest impact on optimization objectives. In the optimal scenario, the main parameters of ATDO, MTDO, IRR, and ERR were 0.1 mg/L, 4 mg/L, 50%, and 100%, respectively. The EQI, OCI, and GHG of the best scenario were 0.046 kg/m3, 0.27 ¥/m3, and 0.51 kgCO2/m3, which were 2.1%, 72.2%, and 34.6% better than the current situation of the case WWTP, respectively. This study provides an effective method for realizing low-carbon and economical operation of WWTPs.

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Section: Effect Of Operational Parameters On the Operation Cost Index...supporting

confidence: 87%

Multi-Objective Optimization Based on Simulation Integrated Pareto Analysis to Achieve Low-Carbon and Economical Operation of a Wastewater Treatment Plant

Liao,

Li,

Liu

et al. 2024

Water

View full text Add to dashboard Cite

show abstract

Microbial community structure of an anaerobic side-stream coupled anoxic–aerobic membrane bioreactor (AOMBR–ASSR) for an in-situ sludge reduction process

Ning,

Hu,

Yue

et al. 2024

Bioprocess Biosyst Eng

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Effects of phosphorus sources on the transformation of phosphorus forms, microbial community, and functional genes in up-flow anaerobic sludge bed reactor

Tao,

Chen,

Wang

et al. 2024

Biochemical Engineering Journal

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Sewage treatment effect of AOA-SBR under different C/P value and its mechanism of nitrogen and phosphorus removal

Cited by 12 publications

References 20 publications

Multi-Objective Optimization Based on Simulation Integrated Pareto Analysis to Achieve Low-Carbon and Economical Operation of a Wastewater Treatment Plant

Multi-Objective Optimization Based on Simulation Integrated Pareto Analysis to Achieve Low-Carbon and Economical Operation of a Wastewater Treatment Plant

Microbial community structure of an anaerobic side-stream coupled anoxic–aerobic membrane bioreactor (AOMBR–ASSR) for an in-situ sludge reduction process

Effects of phosphorus sources on the transformation of phosphorus forms, microbial community, and functional genes in up-flow anaerobic sludge bed reactor

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