Simulation Study on Constructed Wetland Treatment on Villages and Small Towns' Sewage

Constructed wetland, one of technologies of wastewater treatment, is developing recently. There are many advantages for this technology: high removal capacity, simple technology of construction operation and maintenance, and low costs in investment, maintenance and operation. Therefore it is adapted...

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Bibliographic Details
Published in2009 International Conference on Environmental Science and Information Application Technology Vol. 3; pp. 302 - 304
Main Authors Baoping Song, Yanxia Zheng, Xuyang Zhao
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2009
Subjects
Cities and towns
constructed wetland
Costs
Geometry
Investments
Microorganisms
sewage
Sewage treatment
Slabs
Sludge treatment
Surface treatment
village and small town
Wastewater treatment
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Summary:Constructed wetland, one of technologies of wastewater treatment, is developing recently. There are many advantages for this technology: high removal capacity, simple technology of construction operation and maintenance, and low costs in investment, maintenance and operation. Therefore it is adapted to sewage treatment of village and small town short of fund and technician. In this paper, the effective specific surface area (alpha S ) and area factor (delta) of constructed wetland with different depths are calculated to study the location of aerobic microorganism according to the slab geometry theory. The simulation results indicated that alpha s in different depths of wetland is different, that is, alpha s of the upper layer is threefold as the wetland bed. The contamination is removed mainly in the upper 25 cm where microorganism is active.
ISBN:9780769536828
0769536824
DOI:10.1109/ESIAT.2009.416