Activated sludge-loaded polyvinyl alcohol microparticles for starch wastewater treatment in an airlift bioreactor
Samo za registrovane korisnike
2018
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Emulsification followed by freezing and thawing cycles was applied to produce poly(vinyl alcohol) (PVA) microparticles and to simultaneously immobilize activated sludge. Activity of the obtained microparticles (similar to 400 mu m in diameter) was evaluated in glucose syrup solutions and heat-pretreated wastewater from a starch factory by measurements of permanganate index (COD (Mn) ) reduction. The reaction followed first-order kinetics, revealing slight mass transfer limitations in PVA microparticles as determined from the kinetic rate constant that was similar to 35% lower than that in the freely suspended activated sludge culture. Yet, efficiency of the microparticles increased almost five-fold in a laboratory airlift bioreactor operating either in batch or continuous regimes. Over 19 days of operation under high organic loadings in the industrial wastewater (similar to 100 kgCOD m(-3) d(-1)), PVA microparticles (12.4% volume fraction) remained active and induced a decrease of over... 90% of biodegradable COD (Mn) at the hydraulic retention time of 8 h.
Ključne reči:
Poly(vinyl alcohol) Hydrogel / Freezing-thawing / Activated Sludge / Airlift Bioreactor / Starch WastewaterIzvor:
Korean Journal of Chemical Engineering, 2018, 35, 2, 324-327Izdavač:
- Korean Institute Chemical Engineers, Seoul
Finansiranje / projekti:
- Razvoj novih inkapsulacionih i enzimskih tehnologija za proizvodnju biokatalizatora i biološki aktivnih komponenata hrane u cilju povećanja njene konkurentnosti, kvaliteta i bezbednosti (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-46010)
DOI: 10.1007/s11814-017-0313-9
ISSN: 0256-1115
WoS: 000423598000003
Scopus: 2-s2.0-85038365747
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Cvetković, Slobodan AU - Bugarski, Branko AU - Obradović, Bojana PY - 2018 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3988 AB - Emulsification followed by freezing and thawing cycles was applied to produce poly(vinyl alcohol) (PVA) microparticles and to simultaneously immobilize activated sludge. Activity of the obtained microparticles (similar to 400 mu m in diameter) was evaluated in glucose syrup solutions and heat-pretreated wastewater from a starch factory by measurements of permanganate index (COD (Mn) ) reduction. The reaction followed first-order kinetics, revealing slight mass transfer limitations in PVA microparticles as determined from the kinetic rate constant that was similar to 35% lower than that in the freely suspended activated sludge culture. Yet, efficiency of the microparticles increased almost five-fold in a laboratory airlift bioreactor operating either in batch or continuous regimes. Over 19 days of operation under high organic loadings in the industrial wastewater (similar to 100 kgCOD m(-3) d(-1)), PVA microparticles (12.4% volume fraction) remained active and induced a decrease of over 90% of biodegradable COD (Mn) at the hydraulic retention time of 8 h. PB - Korean Institute Chemical Engineers, Seoul T2 - Korean Journal of Chemical Engineering T1 - Activated sludge-loaded polyvinyl alcohol microparticles for starch wastewater treatment in an airlift bioreactor EP - 327 IS - 2 SP - 324 VL - 35 DO - 10.1007/s11814-017-0313-9 ER -
@article{ author = "Cvetković, Slobodan and Bugarski, Branko and Obradović, Bojana", year = "2018", abstract = "Emulsification followed by freezing and thawing cycles was applied to produce poly(vinyl alcohol) (PVA) microparticles and to simultaneously immobilize activated sludge. Activity of the obtained microparticles (similar to 400 mu m in diameter) was evaluated in glucose syrup solutions and heat-pretreated wastewater from a starch factory by measurements of permanganate index (COD (Mn) ) reduction. The reaction followed first-order kinetics, revealing slight mass transfer limitations in PVA microparticles as determined from the kinetic rate constant that was similar to 35% lower than that in the freely suspended activated sludge culture. Yet, efficiency of the microparticles increased almost five-fold in a laboratory airlift bioreactor operating either in batch or continuous regimes. Over 19 days of operation under high organic loadings in the industrial wastewater (similar to 100 kgCOD m(-3) d(-1)), PVA microparticles (12.4% volume fraction) remained active and induced a decrease of over 90% of biodegradable COD (Mn) at the hydraulic retention time of 8 h.", publisher = "Korean Institute Chemical Engineers, Seoul", journal = "Korean Journal of Chemical Engineering", title = "Activated sludge-loaded polyvinyl alcohol microparticles for starch wastewater treatment in an airlift bioreactor", pages = "327-324", number = "2", volume = "35", doi = "10.1007/s11814-017-0313-9" }
Cvetković, S., Bugarski, B.,& Obradović, B.. (2018). Activated sludge-loaded polyvinyl alcohol microparticles for starch wastewater treatment in an airlift bioreactor. in Korean Journal of Chemical Engineering Korean Institute Chemical Engineers, Seoul., 35(2), 324-327. https://doi.org/10.1007/s11814-017-0313-9
Cvetković S, Bugarski B, Obradović B. Activated sludge-loaded polyvinyl alcohol microparticles for starch wastewater treatment in an airlift bioreactor. in Korean Journal of Chemical Engineering. 2018;35(2):324-327. doi:10.1007/s11814-017-0313-9 .
Cvetković, Slobodan, Bugarski, Branko, Obradović, Bojana, "Activated sludge-loaded polyvinyl alcohol microparticles for starch wastewater treatment in an airlift bioreactor" in Korean Journal of Chemical Engineering, 35, no. 2 (2018):324-327, https://doi.org/10.1007/s11814-017-0313-9 . .