Achieving stably enhanced biological phosphorus removal from aerobic granular sludge system via phosphorus rich liquid extraction during anaerobic period
| Autor: | Rongzhi Chen, Zhenya Zhang, Duu-Jong Lee, Tian Yuan, Qian Wang, Jixiang Wang, Zhongfang Lei, Zejiao Li, Yasuhisa Adachi, Kazuya Shimizu |
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| Rok vydání: | 2021 |
| Předmět: |
Environmental Engineering
Sewage Renewable Energy Sustainability and the Environment Chemistry Nitrogen Phosphorus Extraction (chemistry) chemistry.chemical_element Bioengineering General Medicine Pulp and paper industry Waste Disposal Fluid Aerobiosis Enhanced biological phosphorus removal Bioreactors Sewage treatment Anaerobiosis Waste Management and Disposal Effluent Anaerobic exercise |
| Zdroj: | Bioresource technology. 346 |
| ISSN: | 1873-2976 |
| Popis: | In order to sustainably manage wastewater treatment plants and the environment, enhanced biological phosphorus (P) removal (EBPR) was proposed to achieve P recovery through extracting P-rich liquid (i.e., Phostrip) from the bottom of aerobic granular sludge (AGS)-based sequencing batch reactors (SBRs) under no mixing during the anaerobic phase. Results showed both tested bacterial AGS (BAGS) and algal-bacterial AGS (A-BAGS) systems stably produced low effluent P ( 99%). The collected P-rich liquids (55-83 mg-P/L) from both systems showed great potential for P recovery of about 83.85 ± 0.57 % (BAGS) or 83.99 ± 0.77% (A-BAGS), which were contributed by the influent P (> 95%) and P reserves in granules based on P balance analysis. This study suggests that the AGS-based SBRs coupling the Phostrip holds great potentials for P recovery profit and further reduction in energy consumption. |
| Databáze: | OpenAIRE |
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