{"title":"Influence of S. carnosus Bacteria as Biocollector for the Recovery Organic Matter in the Flotation Process","authors":"G. T. Ramos-Escobedo, E. T. Pecina-Trevi\u00f1o, L. F. Camacho-Ortegon, E. Orrantia-Borunda","volume":94,"journal":"International Journal of Bioengineering and Life Sciences","pagesStart":1128,"pagesEnd":1133,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/9999561","abstract":"
The mineral bioflotation represents a viable
\r\nalternative for the evaluation of new processes benefit alternative.
\r\nThe adsorption bacteria on minerals surfaces will depend mainly on
\r\nthe type of the microorganism as well as of the studied mineral
\r\nsurface. In the current study, adhesion of S. carnosus on coal was
\r\nstudied. Several methods were used as: DRX, Fourier Transform
\r\nInfra-Red (FTIR) adhesion isotherms and kinetic. The main goal is to
\r\nrecovery of organic matter by the microflotation process on coal
\r\nparticles with biological reagent (S. carnosus). Adhesion tests
\r\nrevealed that adhesion took place after of 8 h at pH 9. The results
\r\nsuggest that the adhesion of bacteria to solid substrates can be
\r\nconsidered an abiotic physicochemical process that is consequently
\r\ngoverned by bacterial surface properties such as their specific surface
\r\narea, hydrophobicity and surface functionalities. The greatest coal
\r\nfine flotability was of 75%, after 5 min of flotation.<\/p>\r\n","references":"[1] Elmahdy AM, El-Mofty SE, Abdel-Khalek NA, El-Midany AA. Impact\r\nof corynebacterium-diphtheriae-intermedius bacteria adsorption on\r\nenhancing the phosphate and dolomite separation selectivity. Adsorpt\r\nSci Technol 2011; 29: 47\u201357.\r\n[2] Elmahdy AM, El-Mofty SE, Abdel-Khalek NA, El-Midany AA. Do\r\nPseudomonas Aeruginosa bacteria affect the selectivity of\r\ndolomite\/apatite separation? Tenside Surfact Deterg 2011; 48: 439\u201344.\r\n[3] Elmahdy AM, El-Midany AA, Abdel-Khalek NA, El-Mofty SE. Effect\r\nof oleate\/bacteria interactions on dolomite separation from phosphate\r\nOre. Tenside Surfact Deterg 2009;46:340\u20135.\r\n[4] Jia, CY, Wei, DZ, Li, PJ, Li, XJ, Tai, PD, Liu, W, Gong, ZQ. Selective\r\nadsorption of Mycobacterium phleion pyrite and sphalerite. Colloids and\r\nSurfaces B: Biointerfaces; 2011 83, 214\u2013219\r\n[5] Dwyer, R, Bruckard, WJ, Rea, S, Holmes, RJ,. Review, bioflotation and\r\nbioflocculation review: microorganisms relevant for mineral\r\nbeneficiation, Mineral Processing and Extractive Metallurgy\r\n(Transaction Institute Mineral Metallurgy C), 2012; 121, 2, 65\u201371.\r\n[6] Botero, AEC, Torem, ML, Mesquita, LMS. Fundamental studies of\r\nhodococcus opacus as a biocollector of calcite and magnesite. Minerals\r\nEngineering. 2008; 20 (10), 1026\u20131032.\r\n[7] Sharma PK, Rao H K. Analysis of different approaches for evaluation of\r\nsurface energy of microbial cells by contact angle goniometry; Advances\r\nin Colloid and Interface Science, 2002, 98; 341-463.\r\n[8] D\u00edaz-L\u00f3pez, CV, Pecina-Trevi\u00f1o, ET., Orrantia-Borunda, E. A study of\r\nbioflotation of chalcopyrite and pyrrhotite mixtures in presence of L.\r\nferrooxidans. Canadian Metallurgical Quarterly 2012; 51 (2), 118\u2013125\r\n[9] Rao, KH, Subramanian, S. Bioflotation and bioflocculation of relevance\r\nto minerals bioprocessing. In: Microbial processing of metal sulfides\r\n(Edgardo R. Donati e Wolfgang Sand), 2007;. 267\u2013286.\r\n[10] El-Midany AA, Abdel-Khalek MA. Reducing sulfur and ash from coal\r\nusing Bacillus subtilis and Paenibacillus polymyxa. Fuel 2014;115\r\n(2014) 589\u2013595.\r\n[11] Yoon RH, Bubble\u2013particle interactions in flotation, in: B.K. Parekh, J.D.\r\nMiller (Eds.), Advances in Flotation Technology, Society for Mining,\r\nMetallurgy and Exploration, 1999, 95\u2013112.\r\n[12] Poortinga AT, Bos R, Norde W, Busscher HJ.Surface Science Reports\r\n2002;47:1\u20139.\r\n[13] Stratton H, Brooks P, Griffiths P, Seviour R. Cell surface\r\nhydrophobicity and mycolic acid composition of Rhodococcus strains\r\nisolated from activated sludge foam. J Ind Microbiol Biotechnol 2002;\r\n28:264\u20137.\r\n[14] Patra P, Natarajan KA. Microbially induced flocculation and flotation\r\nfor separation of chalcopyrite from quartz and calcite. Int J Miner\r\nProcess 2004;74:143\u201355.\r\n[15] Hanumantha KR, Vilinska A, Chernyshova IV. Minerals bioprocessing:\r\nR & D needs in mineral biobeneficiation. Hydrometallurgy, 2010; 104:\r\n465-470.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 94, 2014"}