Research on Treatment of Schoolyard Domestic Sewage with Accelerator for Biological Reaction

Abstract:

Abstract. Sufficient dissolved oxygen (DO) is one of the important factors on the treatment of contaminated water by using aerobic microbes. So that oxygen transfer becomes one of the hot spots on the research and development of the wastewater treatment engineering. Oxygen transfering is intensified by the accelerator for biological reaction. In this paper, the schoolyard domestic sewage was processed by the method of sequencing batch reactor (SBR) activated sludge processing. Some important factors, e.g. the dosage of the accelerator for biological reaction, and the effect of the aeration time and intensity on the CODCr removal efficiency have been investigated, the optimum conditions have been chosen.

• Periodical: Advanced Materials Research (Volumes 396-398)
• Pages: 2048-2051
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.396-398.2048
• Online since: November 2011
• Authors: Li Hong Lan, Ping Lan, Tao Xie, An Ping Liao
• Keywords: Accelerator for Biological Reaction, Aerobic Treatment, COD_Cr Removal Efficiency, Schoolyard Domestic Sewage

References

[1] Bin,Zhao.Gas-Liquid mass Transfer in slurry in bubble systems Ⅰ Mathematical modeling based on a single bubble mechanism .Chemical Engineering Journal , 96(2003),pp.23-27

DOI: 10.1016/s1385-8947(03)00238-9

[2] Weiguo Yang. Gas-Liquid mass Transfer in slurry bubble systems Ⅱ.Verification and simulation of the model based on the single bubble mechanism. Chemical Engineering Journal, 96(2003),pp.29-33

DOI: 10.1016/s1385-8947(03)00240-7

[3] Fernado Dorado,Manuel Andres Rodrigo,and Isaac Asencio.Assembly of a Multiphase Bioreactor for laboratory Demornstrations:Study of the Oxygen-Transfer Efficiency in Activated Sludge, Chem. Educator,7(2002),pp.90-95

DOI: 10.1007/s00897020541a

[4] Chang Kyoo yoo, Jong-Min Lee and In-Beum Lee. Nonlinear Model-based Dissolved Oxygen Control in a Biological Wastewater Treatment Process ,Korean J.Chem.Eng., 21(1)( 2004), pp.14-19

DOI: 10.1007/bf02705375

[5] Zhiyong Ji, Xin gang Li , Jinsheng Sun. Aerating Technologies for Treatment of Contaminated Water by Using Aerobic Microbes,Shanghai Environmental Sciences, 25(4)(2006),pp.170-173

[6] Xinle Liang,Jianrong Li,Hong Zhong.Application of N-dodecane Phaffia Rhodozyma Cultivation for Stimulating Astaxanthin Production,Mycosystema,23(4)(2004),pp.524-528

[7] D. Cascaval, A.-I. Galaction, E. Folescu，et al.. Comparative study on the effects of n-dodecane addition on oxygen transfer in stirred bioreactors for simulated,bacterial and yeasts broths[J]. Biochemical Engineering Journal, 31(2006),p.56–66

DOI: 10.1016/j.bej.2006.05.019

[8] K.G. Clarke, P.C. Williams, M.S. Smit，et al.. Enhancement and repression of the volumetric oxygen transfer coefficient through hydrocarbon addition and its influence on oxygen transfer rate in stirred tank bioreactors[J]. Biochemical Engineering Journal,28(2006),p.237–242

DOI: 10.1016/j.bej.2005.11.007

[9] Haidong Huang,Gang Hou.Study on Measurement of K_La in Bioreactor by Methodof Imitate Steady State, Journal of Tianjin Agricultural University,3(2004),pp.28-31

[10] Yikun Zhao,Li Zhou Li,Lingyun Li.Impact of DO Concentration on Filamentous Sludge Bulking in Treatment of Brewery Wastewater by SBR Process, China Environmental Protection Industry, 9(2010),pp.52-55