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Biodegradation of some organic reagents from mineral process effluents
Indian Institute of Science.
Indian Institute of Science.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriell miljö- och processteknik.
1999 (Engelska)Ingår i: Biohydrometallurgy and the Environment toward the Mining of the 21st century: Proceedings of the International Biohydrometallurgy Symposium IBS 1999, Madrid, Spain / [ed] R. Amils; A. Ballester, Elsevier, 1999, Vol. Part B: Molucular biology, biosorption, bioremediation, s. 687-696Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

The utility of a soil microbe, namely Bacillus polymyxa, in the removal of organic reagents such as dodecylamine, ether diamine, isopropyl xanthate and sodium oleate from aqueous solutions is demonstrated. Time-bound removal of the above organic reagents from an alkaline solution was investigated under different experimental conditions during bacterial growth and in the presence of metabolites by frequent monitoring of residual concentrations as a function of time, reagent concentration and cell density. The stages and mechanisms in the biodegradation process were monitored through UV-visible and FTIR spectroscopy. Surface chemistry of the bacterial cells as well as the biosorption tendency for various organics were also established through electrokinetic and adsorption density measurements. Both the cationic amines were found to be biosorbed followed by their degradation through bacterial metabolism. The presence of the organic reagents promoted bacterial growth through effective bacterial utilization of nitrogen and carbon from the organics. Under optimal conditions, complete degradation and bioremoval of all the organics could be achieved

Ort, förlag, år, upplaga, sidor
Elsevier, 1999. Vol. Part B: Molucular biology, biosorption, bioremediation, s. 687-696
Nationell ämneskategori
Metallurgi och metalliska material
Forskningsämne
Mineralteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-33029DOI: 10.1016/S1572-4409(99)80159-XScopus ID: 2-s2.0-77957039561Lokalt ID: 7c254860-b0de-11de-8293-000ea68e967bISBN: 0-444-50193-2 (tryckt)OAI: oai:DiVA.org:ltu-33029DiVA, id: diva2:1006264
Konferens
International Biohydrometallurgy Symposium : 20/06/1999 - 23/06/1999
Anmärkning
Godkänd; 1999; 20091004 (hrao)Tillgänglig från: 2016-09-30 Skapad: 2016-09-30 Senast uppdaterad: 2018-07-10Bibliografiskt granskad

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Rao, K. HanumanthaForssberg, Eric

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