Activated sludge-loaded polyvinyl alcohol microparticles for starch wastewater treatment in an airlift bioreactor

Slobodan Cvetkovic; Branko Bugarski; Bojana Obradovic

Korean Journal of Chemical Engineering, Vol.35, No.2, 324-327, February, 2018

DOI10.1007/s11814-017-0313-9 Export Citation

Activated sludge-loaded polyvinyl alcohol microparticles for starch wastewater treatment in an airlift bioreactor

Slobodan Cvetkovic, Branko Bugarski¹, and Bojana Obradovic^{1, †}

Ministry of Environmental Protection of the Republic of Serbia, Omladinskih Brigada 1, 11070 New Belgrade, Serbia
¹Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia

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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 (~400 μm in diameter) was evaluated in glucose syrup solutions and heat-pretreated wastewater from a starch factory by measurements of permanganate index (CODMn) reduction. The reaction followed first-order kinetics, revealing slight mass transfer limitations in PVA microparticles as determined from the kinetic rate constant that was ~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 (~100 kgCOD m-3 d -1), PVA microparticles (12.4% volume fraction) remained active and induced a decrease of over 90% of biodegradable CODMn at the hydraulic retention time of 8 h.

Keywords:Poly(vinyl alcohol) Hydrogel;Freezing-thawing;Activated Sludge;Airlift Bioreactor;Starch Wastewater

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[Referenced By]

[1] Hassan CM, Peppas NA, Adv. Polym. Sci., 153, 37 (2000)

[2] Seo JK, Jung IH, Kim MR, Kim BJ, Nam SW, Kim SK, Aquacult. Eng., 24, 181 (2001)

[3] Rostron WM, Stuckey DC, Young AA, Water Res., 35, 1169 (2001)

[4] Chen Y, Wang Y, Fan M, Jin H, Procedia Environ. Sci., 11, 1171 (2011)

[5] Bae H, Yang H, Chung YC, Yoo YJ, Lee S, Bioprocess. Biosyst. Eng., 37, 1115 (2014)

[6] Zhang ZY, Lei ZF, He XY, Zhang ZY, Yang YN, Sugiura N, J. Hazard. Mater., 163(2-3), 1090 (2009)

[7] Uemoto H, Saiki H, Appl. Environ. Microbiol., 66, 816 (2000)

[8] Trogl J, Bouskova A, Mrakota J, Pilarova V, Krudencova J, Mechurova J, Krizenecka S, Stloukal R, Desalination, 275(1-3), 82 (2011)

[9] El-Naas MH, Al-Muhtaseb SA, Makhlouf S, J. Hazard. Mater., 164(2-3), 720 (2009)

[10] Liu YJ, Zhang AN, Wang XC, Biochem. Eng. J., 44, 187 (2009)

[11] Chen KC, Lee SC, Chin SC, Houng JY, Enzyme Microb. Technol., 23(5), 311 (1998)

[12] Ramteke SP, Gogate PR, J. Chem. Technol. Biotechnol., 91, 456 (2014)

[13] Wenjie Z, Dunqiu W, Yasunori K, Taichi Y, Li Z, Kenji F, Bioresour. Technol., 99, 840 (2008)

[14] Zhang WJ, Xie QL, Rouse JD, Qiao S, Furukawa K, J. Biosci. Bioeng., 107(1), 49 (2009)

[15] Merchuk J, Trends Biotechnol., 8, 66 (1990)

[16] Nicolella C, van Loosdrecht MCM, Heijnen SJ, Trends Biotechnol., 18, 312 (2000)

[17] Nicolella C, van Loosdrecht MCM, Heijnen SJ, J. Biotechnol., 80, 1 (2000)

[18] Guobin S, Jianmin X, Chen G, Huizhou L, Jiayong C, Let. Appl. Microbiol., 40, 30 (2005)

[19] He SY, Lin YH, Hou KY, Hwang SCJ, Bioresour. Technol., 102(10), 5609 (2011)

[20] Ficek BJ, Peppas NA, J. Control. Release, 27, 259 (1993)

[21] Li JK, Wang N, Wu XS, J. Control. Release, 56, 117 (1998)

[22] International Organization for Standards (ISO) “Water quality -Determination of permanganate index” ISO 8467:1993(E), Geneve,Switzerland (1993).

[23] Milivojevic M, Dudukovic A, Obradovic B, Spasic A, Bugarski B, Hem. Ind., 58, 10 (2004)

[24] Milivojevic M, Pavlou S, Pajic-Lijakovic I, Bugarski B, Chem. Eng. J., 123, 117 (2007)

[25] Karahan O, Martins A, Orhon D, van Loosdrecht MCM, Biotechnol. Bioeng., 93(5), 964 (2006)

[26] Huang LP, Jin B, Lant P, Zhou JT, J. Chem. Technol. Biotechnol., 78(8), 899 (2003)

[27] Rajbhandari BK, Annachhatre AP, Bioresour. Technol., 95(2), 135 (2004)

[28] Rajasimman M, Karthikeyan C, J. Appl. Sci. Environ. Manage., 11, 97 (2007)