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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.4 P.441~449


Kinetics of aerobically activated sludge on terylene artificial silk printing and dyeing wastewater treatment

Author(s):  GUAN Bao-hong, WU Zhong-biao, XU Gen-liang

Affiliation(s):  Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   guanbaohong@zju.edu.cn

Key Words:  Process kinetics, Aerobically activated sludge, COD (chemical oxygen demand), Biological treatability, Prin-ting and dyeing wastewater

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GUAN Bao-hong, WU Zhong-biao, XU Gen-liang. Kinetics of aerobically activated sludge on terylene artificial silk printing and dyeing wastewater treatment[J]. Journal of Zhejiang University Science A, 2004, 5(4): 441~449.

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author="GUAN Bao-hong, WU Zhong-biao, XU Gen-liang",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Kinetics of aerobically activated sludge on terylene artificial silk printing and dyeing wastewater treatment
%A GUAN Bao-hong
%A WU Zhong-biao
%A XU Gen-liang
%J Journal of Zhejiang University SCIENCE A
%V 5
%N 4
%P 441~449
%@ 1869-1951
%D 2004
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2004.0441

T1 - Kinetics of aerobically activated sludge on terylene artificial silk printing and dyeing wastewater treatment
A1 - GUAN Bao-hong
A1 - WU Zhong-biao
A1 - XU Gen-liang
J0 - Journal of Zhejiang University Science A
VL - 5
IS - 4
SP - 441
EP - 449
%@ 1869-1951
Y1 - 2004
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2004.0441

aerobically activated sludge processing was carried out to treat terylene artificial silk printing and dyeing wastewater (TPD wastewater) in a lab-scale experiment, focusing on the kinetics of the COD removal. The kinetics parameters determined from experiment were applied to evaluate the biological treatability of wastewater. Experiments showed that COD removal could be divided into two stages, in which the ratio BOD/COD (B/C) was the key factor for stage division. At the rapid-removal stage with B/C>0.1, COD removal could be described by a zero order reaction. At the moderate-removal stage with B/C<0.1, COD removal could be described by a first order reaction. Then Monod equation was introduced to indicate COD removal. The reaction rate constant (K) and half saturation constant (KS) were 0.0208-0.0642 L/(gMLSS)·h and 0.44-0.59 (gCOD)/L respectively at 20 °C-35 °C. Activation energy (Ea) was 6.05×104 J/mol. By comparison of kinetic parameters, the biological treatability of TPD wastewater was superior to that of traditional textile wastewater. But COD removal from TPD-wastewater was much more difficult than that from domestic and industrial wastewater, such as papermaking, beer, phenol wastewater, etc. The expected effluent quality strongly related to un-biodegradable COD and kinetics rather than total COD. The results provide useful basis for further scaling up and efficient operation of TPD wastewater treatment.

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