Stimulation of sulfate-reducing bacteria in lake water from a former open-pit mine through addition of organic wastes
Journal Article
·
· Water Environment Research
A method to improve water quality in a lake occupying a former open-pit mine was evaluated in a laboratory-scale study. Untreated pit lake water contained high levels of sulfate, iron, and arsenic and was mildly acidic ({approximately} pH 6). Varying amounts of two locally available organic waste products were added to pit water and maintained in microcosms under anoxic conditions. In selected microcosms, populations of sulfate-reducing bacteria increased with time; sulfide was generated by sulfate reduction; sulfate, iron, and arsenic concentrations approached zero; and pH approached neutrality. Best results were obtained with intermediate amounts of waste potato skin.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 346821
- Journal Information:
- Water Environment Research, Vol. 71, Issue 2; Other Information: PBD: Mar-Apr 1999
- Country of Publication:
- United States
- Language:
- English
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