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Heavy metal biosorp...
Heavy metal biosorption by Rhizopus sp. biomass immobilized on textiles
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Gomez, P.F. (författare)
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- Lennartsson, P.R. (författare)
- Högskolan i Borås,Institutionen Ingenjörshögskolan,Biotechnology
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- Persson, N.K. (författare)
- Högskolan i Borås,Institutionen Textilhögskolan,Biotechnology
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- Taherzadeh, M.J. (författare)
- Högskolan i Borås,Institutionen Ingenjörshögskolan,Biotechnology
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(creator_code:org_t)
- 2014-01-05
- 2014
- Engelska.
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Ingår i: Water, Air and Soil Pollution. - : Springer. - 0049-6979 .- 1573-2932. ; 225:2
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Pollution by heavy metals is at present one of the major environmental concerns. In the present study, the potential of the filamentous zygomycete fungus Rhizopus sp. to absorb/adsorb metal ions from solution was investigated. With the aim to develop a feasible process, the fungus was immobilized on 10 different textile materials during the cultivation. All immobilized biosorbents reduced the Cu2+ concentrations initially from 20 to 3.1–5.6 mg/l within 150 min, with the exception of the biomass immobilized on wool, which reduced the Cu2+ level to 10.2 mg/l. The immobilized biomass (with the exception of wool) fitted well into a pseudo-second-order model. The uptake of copper showed a slight dependence on initial metal concentration. By reapplying immobilized Rhizopus sp. to a solution containing a low concentration of Cu2+ after going through a first step of biosorption, a decrease of the concentration to below 2 mg/l was accomplished, meeting the stipulated level for Cu2+ in human drinking water. Immobilization of fungal biomass in a cushion was also successfully applied in the biosorption process. The positive results obtained in a two-step biosorption indicate that a sequential arrangement could be the foundation for a commercial product.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology (hsv//eng)
Nyckelord
- Resource Recovery
- Resursåtervinning
- Resource Recovery
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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