Microbial detoxification of cyanide solutions: a new biotechnological approach using algae

Gürbüz, Fatma; Çiftçi, Hasan; Akçıl, Ata; Karahan, Aynur Gül

doi:10.1016/j.hydromet.2003.10.004

Cited by 66 publications

(31 citation statements)

References 24 publications

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“…Enzymatic activities associated with certain species of bacteria, fungi and algae are known to oxidise cyanide to less toxic cyanate [20,73,74]. Aerobic and anaerobic passive biological treatment processes are cost-effective alternatives to conventional cyanide treatment strategies since they do not need external energy, chemicals and routine maintenance.…”

Section: Biological Oxidation Methodsmentioning

confidence: 99%

Review of the Impact on Water Quality and Treatment Options of Cyanide Used in Gold Ore Processing

Nyamunda¹

2017

Water Quality

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Cyanide has been widely used in several industrial applications such as electroplating photography, metal processing, agriculture, food and the production of organic chemicals, plastics, paints and insecticides. The strong affinity of cyanide for metals such as gold and silver makes it suitable for selective leaching of these metals from ores. Cyanide is highly toxic; hence, there is a need to regulate and limit the amount of cyanide that may be discharged into the environment. Technologies focusing on the use of physical, chemical and biological methods have been developed to reduce the concentration of cyanide and cyanide compounds in wastewaters to permissible limits. This chapter reviews the current and emerging technologies for treatment of cyanide from wastewaters generated in gold mining processes.

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Section: Biological Oxidation Methodsmentioning

confidence: 99%

Review of the Impact on Water Quality and Treatment Options of Cyanide Used in Gold Ore Processing

Nyamunda¹

2017

Water Quality

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“…Conventional techniques which have already been industrially viable include the separation of lipids from the other components of the biomass (Gurbuz, et al, 2004). This however leads to a loss in biomass amount and low yield in combustible fuel.…”

Section: Post-treatment Of Collected Biomass and Conversion In Biofuelsmentioning

confidence: 99%

Bio-Algal Gas Cleaning Plant for Treatment of Blast Furnace Wastewater

Bose

Bhattacharjee

2017

Mijst

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“…In contrast, Rhizopus arrhizus could remove iron(III)-cyanide complexes from aqueous solutions by active uptake and intracellular bioaccumulation without degradation occurring (Aksu et al 1999). Algae have also demonstrated high activity to degrade free cyanides at alkaline pH in concentrations as high as 400 ml )1 (Gurbuz et al 2004).…”

Section: Future Applications Of Biological Cyanide Degrading Systemsmentioning

confidence: 99%

The current and future applications of microorganism in the bioremediation of cyanide contamination

Baxter

Cummings

2006

Antonie Van Leeuwenhoek

117

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Inorganic cyanide and nitrile compounds are distributed widely in the environment, chiefly as a result of anthropogenic activity but also through cyanide synthesis by a range of organisms including higher plants, fungi and bacteria. The major source of cyanide in soil and water is through the discharge of effluents containing a variety of inorganic cyanide and nitriles. Here the fate of cyanide compounds in soil and water is reviewed, identifying those factors that affect their persistence and which determine whether they are amenable to biological degradation. The exploitation of cyanides by a variety of taxa, as a mechanism to avoid predation or to inhibit competitors has led to the evolution in many organisms of enzymes that catalyse degradation of a range of cyanide compounds. Microorganisms expressing pathways involved in cyanide degradation are briefly reviewed and the current applications of bacteria and fungi in the biodegradation of cyanide contamination in the field are discussed. Finally, recent advances that offer an insight into the potential of microbial systems for the bioremediation of cyanide compounds under a range of environmental conditions are identified, and the future potential of these technologies for the treatment of cyanide pollution is discussed.

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Microbial detoxification of cyanide solutions: a new biotechnological approach using algae

Cited by 66 publications

References 24 publications

Review of the Impact on Water Quality and Treatment Options of Cyanide Used in Gold Ore Processing

Review of the Impact on Water Quality and Treatment Options of Cyanide Used in Gold Ore Processing

Bio-Algal Gas Cleaning Plant for Treatment of Blast Furnace Wastewater

The current and future applications of microorganism in the bioremediation of cyanide contamination

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