Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/2437
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dc.contributorDepartment of Civil and Environmental Engineering-
dc.creatorLi, XZ-
dc.creatorHao, X-
dc.creatorZhu, DY-
dc.date.accessioned2014-12-11T08:29:15Z-
dc.date.available2014-12-11T08:29:15Z-
dc.identifier.issn0959-3330-
dc.identifier.urihttp://hdl.handle.net/10397/2437-
dc.language.isoenen_US
dc.publisherSelper Ltden_US
dc.rights? 2000 Selper Ltd. This is an electronic version of an article published in Environmental Technology, 21(5), 525-534. Environmental Technology is available online at: http://www.informaworld.com, the open URL of the article: http://www.informaworld.com/smpp/content~db=all?content=10.1080/09593332108618093en_US
dc.subjectNutrient removalen_US
dc.subjectWater hyacinthen_US
dc.subjectAerationen_US
dc.subjectUptake of planten_US
dc.subjectChlorosisen_US
dc.titleA modified aeration process for promoting nutrient removal using water hyacinth to treat sewageen_US
dc.typeJournal/Magazine Articleen_US
dc.description.otherinformationAuthor name used in this publication: X. Z. Lien_US
dc.description.otherinformationAuthor name used in this publication: X. Haoen_US
dc.description.otherinformationAuthor name used in this publication: D. Y. Zhuen_US
dc.identifier.spage525-
dc.identifier.epage534-
dc.identifier.volume21-
dc.identifier.issue5-
dc.identifier.doi10.1080/09593332108618093-
dcterms.abstractIn an attempt to upgrade some conventional aeration processes, a laboratory-scale system for promoting nitrogen and phosphorus removal was set up and studied through a series of experiments, in which water hyacinth was planted on the surface of the mixed liquor in aeration tanks. The main purpose of this study was to evaluate the effects of aeration, organic load (chemical oxygen demand) and residence time on the nutrient removal efficiency of a water hyacinth based system for the purification of raw and settled sewage wastewaters. The experiments indicated that the aeration with airflow intensity of 41 min?? can provide enough oxygen supply but no significant disturbance of water hyacinth growth. The water hyacinth grew better in a moderate organic strength of chemical oxygen demand (COD) = 18-80 mg l??. In this study, it was observed that chlorosis of water hyacinth occurred under conditions of nutrient deficiency, and possibility that it was caused by iron (Fe) deficiency was analyzed. The increase of solids retention time (SRT) from 5 to 20 days was of benefit for organic and nutrient removals. The system demonstrated a high performance of nitrogen and phosphorus removals up to 86% and 80% respectively from the raw sewage, which are far better than that in floating aquatic macrophyte-based treatment systems (FAMS) and wetland systems. Dissimilation via nitrification and denitrification was considered as a major pathway of N removal, and assimilation via plant uptake was thought to be responsible for more than half of the P removal in the designed system.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationEnvironmental technology, 2000, v. 21, no. 5, p. 525-534-
dcterms.isPartOfEnvironmental technology-
dcterms.issued2000-
dc.identifier.isiWOS:000087138900004-
dc.identifier.scopus2-s2.0-0034063165-
dc.identifier.eissn1479-487X-
dc.description.oaAccepted Manuscripten_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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