Abstract
The features of organic pollutants degradation mainly characterized by bio-flocculation for step-A of adsorption-biodegredation (AB) process were studied. By investigating the relationship of extracellular polymeric substances (EPS) with bioflocculation and introducing kinetic model of organic pollutant degradation into EPS, the kinetic model of organic pollutant degradation for step-A bioflocculation was deducted. And through the experiments, the kinetic constants were calculated as follows: k 1=0.005 3; k c1=1 710.7 and v max1 = 10 min−1.
Similar content being viewed by others
References
Beitelsmann D, Diering A, Frechen B. Zukunftweisende abwasertechdogie auch für belastete abwasser[J]. Korrespondenz Abwësser, 1986, 28(3): 48–52.
NIAN Yue-gang. The mechanism of AB process[J]. Water & Wastewater, 1995, 20(10): 5–7. (in Chinese)
LIAO B Q, Allen D G, Droppo I G, et al. Surface properties of sludge and their role in bioflocculation and settleability [J]. Wat Res, 2001, 35(2): 339–350.
Frølund B, Palmgren R, Keiding K, et al. Extraction of extracellular polymers from activated sludge using a cation exchange resin[J]. Wat Res, 1996, 30 (3): 1749–1758.
Chang E E, Chiang P C, Lu P H, et al. Comparisons of metal leachability for various wastes by extraction and leaching methods[J]. Chemosphere, 2001, 45 (1):91–99.
Boever J L, Vanacker J M, Fiems L O, et al. Rumen degradation characteristics and protein value of grassland products and their prediction by laboratory measurements and NIRS [J]. Anima Feed Science and Technology, 2004(116): 53–66.
WEN Fu-seng, QI Wen-qu, WANG Xin-fang, et al. Analytical method of water and wastewater[M]. Beijing: China Environmental Science Press, 2004: 86–324. (in Chinese)
XU Bao-jiu, Long Teng-rui. Contemporary principles of water and wastewater treatment [M]. Beijing: Higher Education Press, 2000: 49–58. (in Chinese)
Wilen B M. The influence of key chemical constituents in activated sludge on surface and flocculating properties[J]. Wat Res, 2003, 37(12): 2127–2139.
Sponza D T. Extracellular polymer substances and physicochemical properties of flocs in steady and unsteady-state activated sludge systems[J]. Process Biochemistry, 2002, 37(1): 983–998.
ZHOU Jian, Long Teng-rui. Effect of extracellular polymeric substances (EPS) on sedimentation of activated sludge [J]. Acta Scientiae Circumstantiae, 2004, 24(4): 613–618. (in Chinese)
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation item: project (2004B4604A01-01) supported by the Mega-projects of Science Research for the 10th Five-Year Plan
Rights and permissions
About this article
Cite this article
Zhou, J., Wu, Zg. & Jiang, Wc. Effects of extra-cellular polymeric substances on organic pollutants biodegradation kinetics for A-step of adsorption-biodegradation process. J Cent. South Univ. Technol. 13, 229–233 (2006). https://doi.org/10.1007/s11771-006-0136-z
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s11771-006-0136-z