Lead Biosorption by a Moderately Halophile Penicillium sp. Isolated from Çamalti Saltern in Turkey

Yıl 2016, Cilt: 5 Sayı: 1, 13 - 22, 13.05.2016

Mine Aydın Kurç , Kiymet Güven , Elif Korcan , Alaettin Güven , Semra Malkoc

https://doi.org/10.18036/btdc.01000

Öz

Owing the importance of biosorption of heavy metals by different organisms, a moderately halophilic fungus isolated from Çamalti saltern was first time investigated for its potential for biosorption. Different heavy metals namely, lead [(Pb(NO₃)₂], nickel (NiCl₂), chromium (K₂CrO₄), zinc (ZnCl₂), cadmium (CdCl₂.H₂O), copper (CuSO₄) and cobalt (CoCl₂.6H₂O) were screened for resistance and the most tolerated heavy metal by Penicillium sp. was chosen in biosorption assay.

The heavy metal tolerance of Penicillium sp. was observed in order of lead>cadmium >chromium>copper>nickel>zinc>cobalt. Different concentrations (145 mg/l, 644 mg/l and 1388 mg/l) of lead biosorption was investigated and increasing the metal ion concentration resulted in decreased uptake for lead. Freundlich isotherm was more effective than Langmuir isotherm for lead biosorption by Penicillium sp. The binding sites for lead attributed to the amine groups on the biomass surface were verified by Fourier Transform Infra Red (FTIR) analysis.

A halotolerant Penicillium sp. having high resistance to lead, could be suggested for use as an agent for abatement of lead pollution in hypersaline conditions or in waters of fluctuating salinity, as well as in non-saline environments after further studies of optimization.

LEAD BIOSORPTION BY A MODERATELY HALOPHILE PENICILLIUM SP. ISOLATED FROM ÇAMALTI SALTERN IN TURKEY

Öz

Ağır metallerin farklı organizmalarla biyosorbsiyonunun önemi sebebiyle Çamaltı tuzlasından izole edilen tuza toleranslı (halotolerant) fungusun biyosorbsiyon potansiyeli bu çalışma ile ilk kez araştırılmıştır. Penicillium sp. izolatının kurşun [(Pb(NO3)2], nikel (NiCl2), krom (K2CrO4), çinko (ZnCl2), kadmiyum (CdCl2.H2O), bakır (CuSO4) ve kobalt (CoCl2.6H2O) ağır metallerine dirençlilikleri araştırılmış ve Penicillium sp. nin en yüksek tolerans gösterdiği ağır metal biyosorpsiyon çalışmaları için seçilmiştir

Anahtar Kelimeler

Biyosopsiyon, Kurşun, Penicillum sp., Ilımlı halofil

Kaynakça

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