Babatunde, A.O.A.O.BabatundeZhao, Y.Q.Y.Q.ZhaoZhao, X.H.X.H.Zhao2011-09-232011-09-232010 Elsev2010-08Bioresource Technology0960-8524http://hdl.handle.net/10197/3170The concept, design and performance analysis of a four-stage novel constructed wetland system (CWs) capable of enhanced and simultaneous removal of phosphorus (P) and organic matter (OM) from wastewaters is described. Alum sludge, a largely available by-product of drinking water facilities using aluminium salts as coagulant was used as the media. Under a hydraulic loading rate of 1.27 m3/m2.d and a range of organic loading rate of 279.4–774.7 g-BOD5/m2.d and 361.1–1028.7 g-COD/m2.d, average removal efficiencies (mean ±SD) of 90.6 ±7.5% for BOD5 and 71.8 ±10.2% for COD were achieved, respectively. P removal was exceptional with average removal efficiency of 97.6 ±1.9% achieved for soluble reactive P at a mean influent concentration of 21.0 ±2.9 mg/l. Overall, the system holds great promise as a novel CWs for simultaneous removal of P and OM, and at the same time, it transforms alum sludge from a waste into a useful material.240511 bytesapplication/pdfenThis is the author’s version of a work that was accepted for publication in Bioresource Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Bioresource Technology, 101 (16): 6576-6579 DOI 10.1016/j.biortech.2010.03.066.Alum sludgeConstructed wetlandsPhosphorusTidal flowSelf organizing mapsWater treatment plant residualsConstructed wetlandsPhosphorusSelf-organizing mapsJournal Article101166576657910.1016/j.biortech.2010.03.066https://creativecommons.org/licenses/by-nc-sa/1.0/