Effect of Seed Sludge Type on Aerobic Granulation, Pollutant Removal and Microbial Community in a Sequencing Batch Reactor Treating Real Textile Wastewater
Rattachement africain : cn, be. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
The aerobic granulation, pollutant removal, and microbial community in real textile wastewater (TWW) treatment were compared using conventional activated sludge (CAS) and preformed aerobic granular sludge (AGS) in synthetic wastewater as seed in two reactors, reactor-1 (R1) and reactor-2 (R2), respectively. The results showed that complete granulation was achieved in R1 (sludge volume index at 5 min (SVI5) and 30 min (SVI30): 19.4 mL/g; granule size: 210 μm) within 65 days, while it only required 28 days in R2 (SVI5 and SVI30: 27.3 mL/g; granule size: 496 μm). The removal of COD, NH4+-N and TN in R1 (49.8%, 98.8%, and 41.6%) and R2 (53.6%, 96.9%, and 40.8%) were comparable in 100% real TWW treatment, but stable performance was achieved much faster in R2. The real TWW had an inhibitory effect on heterotrophic bacteria activity, but it had no inhibition on ammonia-oxidizing bacteria activity. AGS with a larger particle size had a higher microbial tolerance to real TWW. Furthermore, filamentous Thiothrix in the AGS in R2 disappeared when treating real TWW, leading to the improvement of sludge settleability. Thus, seeding preformed AGS is suggested as a rapid start-up method for a robust AGS system in treating real TWW.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Effect of Seed Sludge Type on Aerobic Granulation, Pollutant Removal and Microbial Community in a Sequencing Batch Reactor Treating Real Textile Wastewater
- Date Crossref
- 01/09/2022
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Zhejiang University of Technology Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province pays non établi dans la noticeUniversité ou école supérieure
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Ghent University Center for Microbial Ecology and Technology (CMET) pays non établi dans la noticeUniversité ou école supérieure
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Zhejiang Province Institute of Architectural Design and Research pays non établi dans la noticeStructure de recherche
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College of Environment pays non établi dans la noticeUniversité ou école supérieure
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Eco-Environmental Science Design & Research Institute of Zhejiang Province pays non établi dans la noticeStructure de recherche
Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province — Zhejiang University of Technology, Center for Microbial Ecology and Technology (CMET) — Ghent University et Zhejiang Province Institute of Architectural Design and Research, avec 2 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.