Effect of chloride on ferrous iron oxidation by a Leptospirillum ferriphilum‐dominated chemostat culture
Yazarlar (4)
Chandra Sekhar Gahan
Jan‐Eric Sundkvist
Åke Sandström
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Biotechnology and bioengineering (Q1)
Dergi ISSN 0006-3592 Dergi Bilgileri (2010)
Makale Dili – Basım Tarihi 06-2010
Kabul Tarihi – Yayınlanma Tarihi 30-03-2010
Cilt / Sayı / Sayfa 106 / 3 / 422–431 DOI 10.1002/bit.22709
Makale Linki https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/abs/10.1002/bit.22709
UAK Araştırma Alanları
Dedektör Teknolojisi
Özet
Biomining is the use of microorganisms to catalyze metal extraction from sulfide ores. However, the available water in some biomining environments has high chloride concentrations and therefore, chloride toxicity to ferrous oxidizing microorganisms has been investigated. Batch biooxidation of Fe2+ by a Leptospirillum ferriphilum‐dominated culture was completely inhibited by 12 g L−1 chloride. In addition, the effects of chloride on oxidation kinetics in a Fe2+ limited chemostat were studied. Results from the chemostat modeling suggest that the chloride toxicity was attributed to affects on the Fe2+ oxidation system, pH homeostasis, and lowering of the proton motive force. Modeling showed a decrease in the maximum specific growth rate (µmax) and an increase in the substrate constant (Ks) with increasing chloride concentrations, indicating an effect on the Fe2+ oxidation system. The model proposes a lowered …
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Google Scholar 55
Effect of chloride on ferrous iron oxidation by a Leptospirillum ferriphilum‐dominated chemostat culture

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