https://scholars.lib.ntu.edu.tw/handle/123456789/576264
標題: | Use of sodium chloride to rapidly restore polyhydroxyalkanoates production from filamentous bulking without polyhydroxyalkanoates productivity impairment | 作者: | Wen Q Ji Y Chen Z Lee D.-J. DUU-JONG LEE |
關鍵字: | Batch reactors; Industrial management; Productivity; Acid mixtures; Filamentous bacteria; Filamentous bulking; Polyhydroxyalkanoates; Production process; Sequencing batch reactors; Sludge settleability; Sodium chloride (NaCl); Sodium chloride; polyhydroxyalkanoic acid; sodium chloride; sodium chloride; bacterium; biomass; bioreactor; chemical compound; concentration (composition); microbial activity; organic acid; salt; sodium chloride; Article; bacterial growth; biomass production; carbon source; controlled study; DNA extraction; halophilic bacterium; high throughput sequencing; microbial community; nonhuman; Paracoccus; priority journal; salinity; sludge bulking; solids retention time; suspended particulate matter; Thauera; biomass; bioreactor; sewage; Bacteria (microorganisms); Candidatus Meganema; Paracoccus (bacterium); Thauera; Biomass; Bioreactors; Polyhydroxyalkanoates; Sewage; Sodium Chloride | 公開日期: | 2020 | 卷: | 313 | 來源出版物: | Bioresource Technology | 摘要: | Occurrence of filamentous bulking would lead to excess biomass washout to fail the polyhydroxyalkanoate (PHA) production process. A strategy using sodium chloride (NaCl) addition to enhance sludge settleability so that high PHA productivity could be retained was tested in two sequencing batch reactors (SBR #1 and #2) fed with different organic acid mixtures but at identical NaCl gradients (0, 5 and 10 g/L). Significant improved sludge settleability was observed at 10 g/L NaCl regardless of occurrence of filamentous bulking. The NaCl addition strategy suppressed the growth of principal filamentous bacterium, Meganema, and enriched the PHA producers (Paracoccus and Thauera) to reach enhanced PHA productivities of 0.244–0.298 g/L?1 d?1 for the present studied system. ? 2020 Elsevier Ltd |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85086505751&doi=10.1016%2fj.biortech.2020.123663&partnerID=40&md5=38add625129751aa7e73699e1bb128e9 https://scholars.lib.ntu.edu.tw/handle/123456789/576264 |
ISSN: | 9608524 | DOI: | 10.1016/j.biortech.2020.123663 |
顯示於: | 化學工程學系 |
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