Paper Title:
Performance of Anaerobic Stage-Constructed Wetland Integrated in Treatment of Low-Concentration Domestic Sewage
  Abstract

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.

  Info
Periodical
Advanced Materials Research (Volumes 347-353)
Chapter
Chapter 3: Development and Utilization of Wind Energy
Edited by
Weiguo Pan, Jianxing Ren and Yongguang Li
Pages
1959-1963
DOI
10.4028/www.scientific.net/AMR.347-353.1959
Citation
C. B. Ye, L. Li, J. J. Zhang, "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
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Price
$32.00
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