Maximizing energy recovery from wastewater via bioflocculation-enhanced primary treatment: a pilot scale study
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F19%3A43920113" target="_blank" >RIV/60461373:22320/19:43920113 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.tandfonline.com/doi/full/10.1080/09593330.2019.1697377" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/09593330.2019.1697377</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/09593330.2019.1697377" target="_blank" >10.1080/09593330.2019.1697377</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Maximizing energy recovery from wastewater via bioflocculation-enhanced primary treatment: a pilot scale study
Popis výsledku v původním jazyce
Anaerobic digestion of municipal sewage sludge is widely used for harvesting energy from wastewater organic content. The more organic carbon we can redirect into the primary sludge, the less energy is needed for aeration in secondary treatment and the more methane is produced in anaerobic digesters. Bioflocculation has been proposed as a promising separation technology to maximize carbon capture in primary sludge. Thus far, only limited data on bioflocculation are available under real conditions, i.e. from pilot-scale reactors treating raw sewage. Moreover, no study has discussed yet the influence of bioflocculation on denitrification potential of sewage. Therefore, we performed bioflocculation of raw sewage in high-rate contact stabilization process in pilot-scale to investigate maximal primary treatment efficiency. During 100 days of operation at sludge retention time of only 2 days, the average removal efficiencies of chemical oxygen demand (COD), suspended solids and total phosphorus were 75%, 87% and 51%, respectively, using no chemicals for precipitation. Up to 76% of incoming COD was captured in primary sludge and 46% for subsequent anaerobic digestion, where energy recovery potential achieved 0.33–0.37 g COD as CH4 per g COD of influent. This study showed in real conditions that this newly adapted separation process has significant benefits over chemically enhanced primary treatment, enabling sewage treatment process to overcome energy self-sufficiency. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.
Název v anglickém jazyce
Maximizing energy recovery from wastewater via bioflocculation-enhanced primary treatment: a pilot scale study
Popis výsledku anglicky
Anaerobic digestion of municipal sewage sludge is widely used for harvesting energy from wastewater organic content. The more organic carbon we can redirect into the primary sludge, the less energy is needed for aeration in secondary treatment and the more methane is produced in anaerobic digesters. Bioflocculation has been proposed as a promising separation technology to maximize carbon capture in primary sludge. Thus far, only limited data on bioflocculation are available under real conditions, i.e. from pilot-scale reactors treating raw sewage. Moreover, no study has discussed yet the influence of bioflocculation on denitrification potential of sewage. Therefore, we performed bioflocculation of raw sewage in high-rate contact stabilization process in pilot-scale to investigate maximal primary treatment efficiency. During 100 days of operation at sludge retention time of only 2 days, the average removal efficiencies of chemical oxygen demand (COD), suspended solids and total phosphorus were 75%, 87% and 51%, respectively, using no chemicals for precipitation. Up to 76% of incoming COD was captured in primary sludge and 46% for subsequent anaerobic digestion, where energy recovery potential achieved 0.33–0.37 g COD as CH4 per g COD of influent. This study showed in real conditions that this newly adapted separation process has significant benefits over chemically enhanced primary treatment, enabling sewage treatment process to overcome energy self-sufficiency. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20801 - Environmental biotechnology
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Environmental Technology
ISSN
0959-3330
e-ISSN
—
Svazek periodika
in press
Číslo periodika v rámci svazku
in press
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
11
Strana od-do
1-11
Kód UT WoS článku
000500639100001
EID výsledku v databázi Scopus
2-s2.0-85076055897