Biosorption of copper(II) by live and dead cells of Yarrowia lipolytica

• Autorzy: Wierzba S.

Identyfikatory

DOI

10.2428/ecea.2013.20(07)082

Warianty tytułu

PL

Biosorpcja miedzi(II) przez żywe i martwe komórki Yarrowia lipolytica

• Języki publikacji: EN

Abstrakty

EN

The biosorption characteristic of Cu(II) using live and dead cells of Yarrowia lipolytica as biosorbents have been investigated in the present research. Biosorption of Cu(II) was enhanced with an increase in pH, temperature, agitation, contact time and initial concentration of the metal ion. It was observed that dead and live biomass efficiently removed copper at 30 min at an initial pH of 5.0. Temperature of 35 oC was optimum at agitation speed of 150 or 200 rpm. For initial copper concentrations of 1–200 mg/dm3, the adsorption data provide an excellent fit to the Langmuir isotherm. The maximum metal uptake values (qmax, mg/g) were found as 9.82 and 12.03 for live and dead biomass, respectively.

PL

W pracy przedstawiono charakterystykę biosorpcji Cu(II) przy użyciu żywych i martwych komórek Yarrowia lipolytica jako biosorbentu. Biosorpcja Cu(II) zwiększała się wraz ze wzrostem pH, temperatury, szybkości mieszania, czasu kontaktu i początkowego stężenia jonu metalu. W pracy zaobserwowano, że żywa i martwa biomasa skutecznie usuwa miedź w ciągu 30 minut, przy początkowym pH 5,0. Temperatura 35 oC była optymalna przy szybkości mieszania wynoszącej 150–200 rpm. Dla początkowego stężenia miedzi z zakresu 1–200 mg/g uzyskane dane biosorpcji były doskonale dopasowane do modelu Langmuira. Maksymalne wartości sorpcji (qmax, mg/g) dla żywej i martwej biomasy wynosiły odpowiednio 9,82 i 12.03.

Słowa kluczowe

EN

biosorption; copper; Yarrowia lipolytica; live cells; dead cells

PL

biosorpcja; miedź; Yarrowia lipolytica; żywe komórki; martwe komórki

• Wydawca: Towarzystwo Chemii i Inżynierii Ekologicznej
• Czasopismo: Ecological Chemistry and Engineering. A
• Rocznik: 2013
• Tom: Vol. 20, nr 7-8
• Strony: 875--883
• Opis fizyczny: Bibliogr. 20 poz., wykr., rys., tab.

Twórcy

autor

Wierzba S.

• Department of Biotechnology and Molecular Biology, Opole University, ul. kard. B. Kominka 6, 40–035 Opole, Poland, phone: [phone]

Bibliografia

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