Modifying alumina red mud to support a revegetation cover

Xenidis, A; Harokopou, AD; Mylona, E; Brofas, G

dc.contributor.author	Xenidis, A	en
dc.contributor.author	Harokopou, AD	en
dc.contributor.author	Mylona, E	en
dc.contributor.author	Brofas, G	en
dc.date.accessioned	2014-03-01T01:22:47Z
dc.date.available	2014-03-01T01:22:47Z
dc.date.issued	2005	en
dc.identifier.issn	1047-4838	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16651
dc.subject	Ammonium Nitrate	en
dc.subject	Calcium Phosphate	en
dc.subject	Electric Conductivity	en
dc.subject	Iron	en
dc.subject	Plant Growth	en
dc.subject	Plant Species	en
dc.subject	Red Mud	en
dc.subject	Sewage Sludge	en
dc.subject	Soil Structure	en
dc.subject	Ammonium Sulfate	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Metallurgy & Metallurgical Engineering	en
dc.subject.classification	Mineralogy	en
dc.subject.classification	Mining & Mineral Processing	en
dc.subject.other	Alkalinity	en
dc.subject.other	Ammonium compounds	en
dc.subject.other	Calcium compounds	en
dc.subject.other	Chemical modification	en
dc.subject.other	Electric conductivity	en
dc.subject.other	Extraction	en
dc.subject.other	Gypsum	en
dc.subject.other	pH	en
dc.subject.other	Revegetation	en
dc.subject.other	Sewage sludge	en
dc.subject.other	Alumina red mud	en
dc.subject.other	Ammonium nitrate	en
dc.subject.other	Ammonium sulfate	en
dc.subject.other	Calcium phosphate	en
dc.subject.other	Ferrous sulfate	en
dc.subject.other	Alumina	en
dc.title	Modifying alumina red mud to support a revegetation cover	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s11837-005-0214-y	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s11837-005-0214-y	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	Alumina red mud, a fine-textured, iron-rich, alkaline residue, is the major waste product of bauxite digestion with caustic soda to remove alumina. The high alkalinity and salinity as well as the poor nutrient status are considered to be the major constraints of red mud revegetation. This research was conducted to evaluate the ameliorating effect of gypsum, sewage sludge, ferrous sulfate, ammonium sulfate, ammonium nitrate, and calcium phosphate on alumina red mud. The effectiveness of the mixtures was evaluated by applying extraction tests and performing experiments using six plant species. Gypsum amendment significantly reduced the pH, electrical conductivity, and sodium and aluminum content of red mud. Sewage sludge application had an extended effect in improving both the soil structure and the nutrient status Of the gypsum-amended red mud. Together with the gypsum and sewage sludge, calcium phosphate application into red mud enhanced plant growth and gave the most promising results.	en
heal.publisher	MINERALS METALS MATERIALS SOC	en
heal.journalName	JOM	en
dc.identifier.doi	10.1007/s11837-005-0214-y	en
dc.identifier.isi	ISI:000226887000006	en
dc.identifier.volume	57	en
dc.identifier.issue	2	en
dc.identifier.spage	42	en
dc.identifier.epage	46	en