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Browsing by Subject "Organic wastes--Purification"

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An alternative arrangement of gravel media in tidal flow reed beds treating pig farm wastewater

Sun, Guangzhi ; Zhao, Y.Q. ; Allen, Stephen (Springer, 2007-01)

The effect of using coarse grain in the upper layer of a gravel-based reed bed is investigated. The aim for testing the “anti-sized” arrangement of gravel media is to seek a solution for the practical problem of medium ...
Anti-sized reed bed system for animal wastewater treatment : a comparative study

Zhao, Y.Q. ; Sun, Guangzhi ; Allen, Stephen (Elsevier, 2004-07)

Two separate sets of reed bed systems were operated in parallel for the purpose to study a comparative behaviour of high strength animal wastewater treatment. Each system consisted of five-stage gravel-based reed beds. The ...
From "fills" to filter : insights into the reuse of dewatered alum sludge as a filter media in a constructed wetland

Babatunde, A.O. ; Zhao, Y.Q. ; Yang, Y. ; Kearney, P. (DesTech Publications, 2007-07)

Dewatered alum sludge, a by-product of drinking water treatment plants, hitherto consigned to landfills was used to develop a novel bio-filter in form of a constructed wetland. Performance results have demonstrated the ...
Optimising the performance of a lab-scale tidal flow reed bed system treating agricultural wastewater

Zhao, Y.Q. ; Sun, Guangzhi ; Lafferty, C. ; Allen, Stephen (IWA Publishing, 2004)

A gravel-based tidal flow reed bed system was operated with three different strategies in order to investigate its optimal performance for the treatment of high strength agricultural wastewaters. According to the three ...