Application and improvement methods of sludge alkaline fermentation liquid as a carbon source for biological nutrient removal: A review

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F23%3A97496" target="_blank" >RIV/60460709:41330/23:97496 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.scitotenv.2023.162341" target="_blank" >http://dx.doi.org/10.1016/j.scitotenv.2023.162341</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scitotenv.2023.162341" target="_blank" >10.1016/j.scitotenv.2023.162341</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Application and improvement methods of sludge alkaline fermentation liquid as a carbon source for biological nutrient removal: A review

Popis výsledku v původním jazyce

Alkaline fermentation can reduce the amount of waste activated sludge and prepare sludge alkaline fermentation liq-uid (SAFL) rich in short-chain fatty acids (SCFAs), which can be used as a high-quality carbon source for the biological nutrient removal (BNR) process. This review compiles the production method of SAFL and the progress of its applica-tion as a BNR carbon source. Compared with traditional carbon sources, SAFL has the advantages of higher efficiency and economy, and different operating conditions can influence the yield and structure of SCFAs in SAFL. SAFL can sig-nificantly improve the nutrient removal efficiency of the BNR process. Taking SAFL as the internal carbon source of BNR can simultaneously solve the problem of carbon source shortage and sludge treatment difficulties in wastewater treatment plants, and further reduce the operating cost. However, the alkaline fermentation process results in many refractory organics, ammonia and phosphate in SAFL, which reduces the availability of SAFL as a carbon source. Pu-rifying SCFAs by removing nitrogen and phosphorus, directly extracting SCFAs, or increasing the amount of SCFAs in SAFL by co-fermentation or combining with other pretreatment methods, etc., are effective measures to improve the availability of SAFL.

Název v anglickém jazyce

Application and improvement methods of sludge alkaline fermentation liquid as a carbon source for biological nutrient removal: A review

Popis výsledku anglicky

Alkaline fermentation can reduce the amount of waste activated sludge and prepare sludge alkaline fermentation liq-uid (SAFL) rich in short-chain fatty acids (SCFAs), which can be used as a high-quality carbon source for the biological nutrient removal (BNR) process. This review compiles the production method of SAFL and the progress of its applica-tion as a BNR carbon source. Compared with traditional carbon sources, SAFL has the advantages of higher efficiency and economy, and different operating conditions can influence the yield and structure of SCFAs in SAFL. SAFL can sig-nificantly improve the nutrient removal efficiency of the BNR process. Taking SAFL as the internal carbon source of BNR can simultaneously solve the problem of carbon source shortage and sludge treatment difficulties in wastewater treatment plants, and further reduce the operating cost. However, the alkaline fermentation process results in many refractory organics, ammonia and phosphate in SAFL, which reduces the availability of SAFL as a carbon source. Pu-rifying SCFAs by removing nitrogen and phosphorus, directly extracting SCFAs, or increasing the amount of SCFAs in SAFL by co-fermentation or combining with other pretreatment methods, etc., are effective measures to improve the availability of SAFL.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Science of the Total Environment

ISSN

0048-9697

e-ISSN

0048-9697

Svazek periodika

873

Číslo periodika v rámci svazku

162341

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

18

Strana od-do

1-18

Kód UT WoS článku

000948499700001

EID výsledku v databázi Scopus

2-s2.0-85148956570