https://scholars.lib.ntu.edu.tw/handle/123456789/547635
標題: | Ionic response of algal-bacterial granular sludge system during biological phosphorus removal from wastewater | 作者: | Wang, J. Lei, Z. Tian, C. Liu, S. Wang, Q. Shimizu, K. Zhang, Z. Adachi, Y. Lee, D.-J. DUU-JONG LEE |
關鍵字: | Acetate; Algal-bacterial aerobic granular sludge; Anion; Cation; Phosphorus release | 公開日期: | 2021 | 卷: | 264 | 來源出版物: | Chemosphere | 摘要: | Biological phosphorus removal (BPR) from wastewater can be generally realized through alternative non-aeration and aeration operation to create anaerobic and aerobic conditions respectively for P release and uptake/accumulation by polyphosphate accumulating organisms (PAOs), with P removal finally achieved by controlled discharge of P-rich sludge. In this study, the response of algal-bacterial aerobic granular sludge (AB-AGS) during BPR to main ions including Ac− (acetate), Cl−, SO42−, NH4+, K+, Mg2+, Ca2+ and Na+ in wastewater was investigated with conventional bacterial AGS (B-AGS) as control and acetate as the sole carbon source. Results show that BPR process mainly involved the changes of Ac−, K+, Mg2+, and Ca2+ rather than Cl−, SO42−, NH4+ and Na+. The mole ratio of ΔP/ΔAc kept almost unchanged during the non-aeration (P release) phase in both B-AGS and AB-AGS systems (ΔPB-AGS/ΔAcB-AGS > ΔPAB-AGS/ΔAcAB-AGS), and it was negatively influenced by the light in AB-AGS systems, in which 62% of acetate was not utilized for P release at the high illuminance of 81 k lux. During the entire non-aeration/aeration period, both ΔK/ΔP and ΔMg/ΔP remained constant, while ΔKAB-AGS/ΔPAB-AGS > ΔKB-AGS/ΔPB-AGS and ΔMgAB-AGS/ΔPAB-AGS ≈ ΔMgB-AGS/ΔPB-AGS. The presence of algae seemed not beneficial for PAOs to remove P, while more K+ and P uptake by algae in AB-AGS suggest its great potential for manufacturing biofertilizer. © 2020 Elsevier Ltd |
URI: | https://www.scopus.com/inward/record.url?eid=2-s2.0-85092191986&partnerID=40&md5=bd3dae9b9b98ba5d707911fbbd0ed5fb https://scholars.lib.ntu.edu.tw/handle/123456789/547635 |
ISSN: | Wang, J.;Lei, Z.;Tian, C.;Liu, S.;Wang, Q.;Shimizu, K.;Zhang, Z.;Adachi, Y.;Lee, D.-J. | DOI: | 10.1016/j.chemosphere.2020.128534 | SDG/關鍵字: | Algae; Bacteria; Biological water treatment; Granular materials; Phosphorus; Aerobic condition; Aerobic granular sludges; Bio fertilizers; Biological phosphorus removal; Granular sludge systems; Main ions; Polyphosphate-accumulating organisms; Sole carbon source; Chemicals removal (water treatment); acetic acid; ammonia; calcium; chlorine; magnesium; phosphorus; potassium; sodium; biological product; nitrogen; phosphorus; activated sludge; alga; bacterium; biological method; ionic composition; oxic conditions; phosphorus; pollutant removal; wastewater treatment; aeration; aerobic granular sludge; algal bacterial aerobic granular sludge; analytic method; Article; carbon source; enhanced biological phosphorus removal; polyphosphate accumulating organism; waste water management; bioreactor; sewage; waste water; algae; Bacteria (microorganisms); Biological Products; Bioreactors; Nitrogen; Phosphorus; Sewage; Waste Disposal, Fluid; Waste Water |
顯示於: | 化學工程學系 |
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