Performance of Anaerobic Stage-Constructed Wetland Integrated in Treatment of Low-Concentration Domestic Sewage


Article Preview

Prompted by the constructed wetland without long-term stable operation and anaerobic baffled reactor (ABR) with higher suspended solid (SS) removal rate, an anaerobic stage-constructed wetland integrated sewage treatment system was designed and applied to treat low-concentration domestic sewage from campus. The hydraulic retention times (HRTs) of anaerobic stage and constructed wetland were set as HRT1, HRT2 by our research. All the trials lasted 30 months, and the results of trial indicated that SS removal rate of the ABR stage was at least 82% under the condition that HRT1 ≥20h. At( 22±2)°C, under the conditions that HRT1=45h and HRT2=15h, the COD, TN, TP removal rates of integrated wastewater treatment system could be over 82.38%, 76.75% and 71.29%, respectively. Based on the results of trial, the operational life of constructed wetland integrated with ABR was evaluated that at least 4 times than that of individual constructed wetland, and the mechanisms of higher efficacy and long-term stable operation of integrative sewage treatment system in treatment of low-concentration domestic sewage from campus were owed to high efficient SS removal rate at ABR stage.



Advanced Materials Research (Volumes 347-353)

Edited by:

Weiguo Pan, Jianxing Ren and Yongguang Li




C. B. Ye et al., "Performance of Anaerobic Stage-Constructed Wetland Integrated in Treatment of Low-Concentration Domestic Sewage", Advanced Materials Research, Vols. 347-353, pp. 1959-1963, 2012

Online since:

October 2011




[1] Yin J., Cui Y. B., Wastewater treatment technology in the artificial wetlands[M] Beijing: Chemical industry press, 2006, 4-13.

[2] Huan Y. Q., Zhang M., Xu Y. X. Optimizing substrate gradation for constructed wetland treating domestic wastewater[J]. Environmental Science & Technology, 2009, 32(3): 130-134, 138.

[3] Fan J., W., Zhang J., Yin D., Q. Treatment of rural domestic sewage by enhanced septic tanks/subsurface-flow constructed wetland[J]. China Water & Waste Water, 2009, 25(24): 69-71.

[4] Wei H. L., Li Y. M. Research progress of constructed wetland removal pesticide in agricultural runoff[J]. Water & Wastewater Engineering, 35(S2): 219-222.

[5] Wu zh. B., Xie X. L., Xu D., et al. Application of integrated vertical flow constructed wetland for improvement of water quality of dragon-shaped water system in Beijing Olympic Forest Park[J]. China Water & Waste Water, 2009, 25(24): 28-31, 35.

[6] Environmental Protection Bureau of China, Standard Methods for Examination of Water and Wastewater association of China. Standard Methods for Examination of Water and Wastewater fourth Edition China. China Environmental Science press, Beijing, (2002).

[7] Ma F., Ren N. Q., Yang J. X. Pollution control microbiology experiment [J]. Harbin: Harbin institute of technology press, 2002, 103~106.

[8] Gao T. D., Lu J. Ch., Lin Zh. X. Study on integrated device-subsurface constructed wetland to treat domestic wastewater[J]. Water & Wastewater Engineering, 2008, 34(11): 161-164.

[9] Li J., Yang X. Sh., Peng Y. Zh., et al. Microorganism and Water Treatment Engineering [M]. Beijing: Chemal Industry Press, (2002).