sulfate reducing mine treatment

Sulfate Reducing Bacteria Problems in Water Treatment
Sulfate Reducing Bacteria Problems in Water Treatment

Sulfate Reducing Bacteria Sulfate reducing bacteria are responsible for significant corrosion of equipment The two most common species of these bacteria, known scientifically as Desulfovibrio desulfuricans or Desulfotomaculum nigrificans, can be the cause of severe pitting corrosion – even on stainless steel components

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Biological sulfate reduction and recovery of elemental ,
Biological sulfate reduction and recovery of elemental ,

Keywords: mine water treatment, sulfate-reducing microorganisms, sul de oxidation, UASB bioreactor, bacterial communities Sulfate in waste waters, especially in e uents of the mining industry, is a growing concern in environmental protection The conventional methods are limited in terms of sulfate remoalv e ciency, and new processes are needed .

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Preparation of metal-resistant immobilized sulfate ,
Preparation of metal-resistant immobilized sulfate ,

Novel immobilized sulfate-reducing bacteria (SRB) beads were prepared for the treatment of synthetic acid mine drainage (AMD) containing high concentrations of Fe, Cu, Cd and Zn using up-flow anaerobic packed-bed bioreactor The tolerance of immobilized SRB beads to heavy metals was significantly enhanced compared with that of suspended SRB

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The Sulfur Cycle in Wastewater Systems - BIOLOGICAL WASTE ,
The Sulfur Cycle in Wastewater Systems - BIOLOGICAL WASTE ,

Oct 08, 2018· Sulfur Reducing Bacteria - these chemotrophic bacteria obtain energy by reducing sulfur into sulfide In most wastewater, these are less common than the Sulfate Reducing Bacteria that use sulfur as an alternative electron acceptor You would find these organisms in mines, subsea volcanic vents, hot springs, and oil formations

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Sulfate-Reducing Bioreactors For The Treatment Of Acid ,
Sulfate-Reducing Bioreactors For The Treatment Of Acid ,

Citation: Venot, C, L Figueroa, M HOLMES, AND D J REISMAN Sulfate-Reducing Bioreactors For The Treatment Of Acid Mine Drainage Presented at 2008 EPA Science .

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Potential acid mine drainage treatment utilizing ,
Potential acid mine drainage treatment utilizing ,

drainage (AMD) Acid mine drainage has characteristic traits of: a rust color, low pH levels (around 3 or 4) and high concentrations of sulfate, metal sulfates and heavy metals Sulfate reducing bacteria (SRB) are often utilized in acid mine drainage treatment by implementing them into biochemical reactors (BCR) As SRB break down various

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A New Process For Sulfate Removal From Industrial Waters
A New Process For Sulfate Removal From Industrial Waters

Closed Gold Mine Water from a closed gold mine in Montana was also tested in CESR-process bench tests In reducing the sulfate concentration to approximately 30 mg/L, the total dissolved solids (TDS) concentration of this water was reduced from approximately 4400 mg/L to 1400 mg/L (Table 2)

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Treatment of acid mine drainage by sulfate reducing ,
Treatment of acid mine drainage by sulfate reducing ,

In order to treat acid mine drainage (AMD) effectively using sulfate-reducing bacteria (SRB) at high concentration of sulfate and heavy metals, Fe 0 was added to enhance the activity of SRB When AMD was treated by SRB and Fe 0 at 25 °C, more than 61% of sulfate was removed and the effluent pH was improved from 275 to 620 during the operation Cu 2+ was removed effectively with the removal .

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Sulfate-reducing bacteria - BioMineWiki - Skellefteå
Sulfate-reducing bacteria - BioMineWiki - Skellefteå

Sulfate-reducing bacteria (SRB) form one group of sulfate reducing prokaryotMain genus is Desulfovibrio Desulfovibrio desulfuricans is often used to immobilize dissolved heavy metals as metallic sulfid Beijerinck showed in 1895 that living matter could reduce sulphate to sulphide in sediments under anaerobic conditions Although many bacteria can produce sulphide, only a few do so at a .

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Reduction of Sulfate Concentrations in Neutral Mine ,
Reduction of Sulfate Concentrations in Neutral Mine ,

3 Biological sulfate reduction: Sulfate reducing bacteria (SRB) are increasingly used for treatment of acidic drainage from mines, both in coal regions as well as hard rock sit The process is relatively simple in that a carbon/electron source is provided to sulfate reducing bacteria that use it to convert sulfate to sulfide The sulfide is then

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Microbiology Chapter 21 Flashcards | Quizlet
Microbiology Chapter 21 Flashcards | Quizlet

23) Which of the following is the first, or initiator, reaction in acid mine drainage and leaching? A) oxidation of reduced sulfides to sulfate and the release of reduced iron (Fe2+) B) rapid spontaneous reduction of oxidized iron (Fe3+) C) rapid oxidation of sulfides to sulfate by oxidized iron (Fe3+) D) microbial sulfate reduction

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Bioremediation by Sulfate Reducing Bacteria of Acid Mine ,
Bioremediation by Sulfate Reducing Bacteria of Acid Mine ,

Bioremediation by Sulfate Reducing Bacteria of Acid Mine Drainage Paul Frank UC Berkeley Department of Environmental Sciences Abstract Mining activity produces metal sulfide wastes - particularly pyrite - which remain in the mine long after operations cease When water percolates through a mine where oxygen is

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Sulfate in Drinking-water - whoint
Sulfate in Drinking-water - whoint

sulfate (alum) is used as a sedimentation agent in the treatment of drinking-water Copper sulfate has been used for the control of algae in raw and public water supplies (McGuire et al, 1984) 14 Environmental fate Sulfates are discharged into water from mines and smelters and from kraft pulp and

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Sulfate Removal Technologies A Review - Water Online
Sulfate Removal Technologies A Review - Water Online

Jan 06, 2015· Review of Sulfate Treatment Issues: An Overview of INAP’s Treatment of Sulfate in Mine Effluents INAP Sulfate Workshop, Salt Lake City, February 27 th Ramachandran, V, 2012 Removal, Control and Management of Total Dissolved Solids rom Process Effluent Streams in the Non-Ferrous Metallurgical Industry – A Review

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Leviathan Mine - Wikipedia
Leviathan Mine - Wikipedia

Leviathan Mine is a United States superfund site (CERCLIS ID: CAD98067685) at an abandoned open-pit sulfur mine located in Alpine County, California The mine is located on the eastern slope of the Sierra Nevada at about 7,000-foot (2,100 m) elevation, 6 miles (97 km) east of Markleeville and 24 miles (39 km) southeast of Lake Tahoe

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Biologically-Induced Precipitation of Minerals in a Medium ,
Biologically-Induced Precipitation of Minerals in a Medium ,

Biologically-Induced Precipitation of Minerals in a Medium with Zinc Under Sulfate-Reducing Conditions , Selection and isolation of sulfate-reducing micro-bial communiti , Treatment of acid mine drainage by sulphate-reducing bacteria using low cost matric

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Sulfates
Sulfates

Reverse osmosis (RO) is a water treatment system that eliminates most dissolved elements and chemicals, such as sulfate, from water by pushing the water through a plastic surface similar to cellophane known as a "semipermeable membrane" Generally, it can eliminate between 93 and 99 % of the sulfate in drinking water This depends on the type of unit

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DESIGN IMPROVEMENTS TO SULFATE-REDUCING ,
DESIGN IMPROVEMENTS TO SULFATE-REDUCING ,

Mine-influenced water (MIW), a waste water product containing heavy metals and sulfates, is a significant pollution source to waters in Montana Implementing a low cost, passive treatment system, such as a sulfate-reducing bioreactor (SRBR), is desired for remediation of streams influenced by heavy metals in remote locations

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Sulfate-reducing microorganisms - Wikipedia
Sulfate-reducing microorganisms - Wikipedia

Some sulfate-reducing microorganisms can reduce hydrocarbons, and they have been used to clean up contaminated soils Their use has also been proposed for other kinds of contaminations Sulfate-reducing microorganisms are considered as a possible way to deal with acid mine waters that are produced by other microorganisms [citation needed]

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Bacteria & Acid Mine Drainage Treatment Method
Bacteria & Acid Mine Drainage Treatment Method

Objective: To develop an in-mine water treatment system in which bacterial sulfate reduction and limestone dissolution continuously remove metals and acidity from contaminated drainage Approach: A section of mine tunnel was converted into a water treatment bioreactor by constructing cinder block dams and filling the area between them with a porous substrate mixture of limestone gravel and .

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Effects of Lead and Mercury on Sulfate-Reducing Bacterial ,
Effects of Lead and Mercury on Sulfate-Reducing Bacterial ,

Jul 26, 2016· Effects of Lead and Mercury on Sulfate-Reducing Bacterial Activity in a Biological Process for Flue Gas Desulfurization Wastewater Treatment Skip to ,

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Sulfate reduction at low pH to remediate acid mine ,
Sulfate reduction at low pH to remediate acid mine ,

Industrial activities and the natural oxidation of metallic sulfide-ores produce sulfate-rich waters with low pH and high heavy metals content, generally termed acid mine drainage (AMD) This is of great environmental concern as some heavy metals are highly toxic Within a number of possibilities, biological treatment applying sulfate-reducing bacteria (SRB) is an attractive option to treat .

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Treatment of metal‐contaminated water using bacterial ,
Treatment of metal‐contaminated water using bacterial ,

Carmen-Mihaela Neculita, Gérald J Zagury and Bruno Bussiére, Effectiveness of sulfate-reducing passive bioreactors for treating highly contaminated acid mine drainage: I Effect of hydraulic retention time, Applied Geochemistry, 23, 12, (3442), (2008)

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Biological treatment of heavy metals in acid mine drainage ,
Biological treatment of heavy metals in acid mine drainage ,

T1 - Biological treatment of heavy metals in acid mine drainage using sulfate reducing bioreactors AU - Sierra Alvarez, Maria Reye AU - Karri, S AU - Freeman, S AU - Field, James A PY - 2006 Y1 - ,

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High rate of biological removal of sulfate, organic matter ,
High rate of biological removal of sulfate, organic matter ,

The anaerobic biological treatment of sulfate‐rich effluents, such as acid mine drainage (AMD), is mediated by sulfate‐reducing bacteria (SRB) This process involves the reduction of sulfates in the presence of an electron donor Complex carbon compounds can be used as electron donors

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SULFATE-REDUCING BIOREACTOR DESIGN AND ,
SULFATE-REDUCING BIOREACTOR DESIGN AND ,

1 SULFATE-REDUCING BIOREACTOR DESIGN AND OPERATING ISSUES: IS THIS THE PASSIVE TREATMENT TECHNOLOGY FOR YOUR MINE DRAINAGE? James J Gusek, PE, Knight Piésold and Co, 1050 Seventeenth Street, Suite 650, Denver, CO 80265, [email protected]

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MICROBIAL SULFATE REDUCTION FOR THE TREATMENT ,
MICROBIAL SULFATE REDUCTION FOR THE TREATMENT ,

MICROBIAL SULFATE REDUCTION FOR THE TREATMENT OF ACID MINE DRAINAGE: A LABORATORY STUDY R W Hammack and R S Hedin Pittsburgh Research Center US Bureau of Mines US Department of the Interior Pittsburgh, PA ABSTRACT A laboratory study was conducted to determine if sulfate‐reducing ecosystems can effectively

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Biological Treatment Helps Remove Nitrate, Sulfate from ,
Biological Treatment Helps Remove Nitrate, Sulfate from ,

By Mark Reinsel Nitrate and sulfate are common contaminants in surface water and groundwater associated with mining operations Three biological treatment systems have successfully removed nitrate and sulfate at the Kettle River Operations near Republic, WA, since their construction in 2005-06

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Exploited application of sulfate-reducing bacteria for ,
Exploited application of sulfate-reducing bacteria for ,

Jun 03, 2016· Exploited application of sulfate-reducing bacteria for concomitant treatment of metallic and non-metallic wastes: a mini review Ali Hussain , 1 Ali Hasan , 1 Arshad Javid , 1 and Javed Iqbal Qazi 2 1 Department of Wildlife & Ecology, University of ,

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Acid mine drainage - microbewiki
Acid mine drainage - microbewiki

Acid mine drainage (AMD) occurs when metal sulfides, most commonly pyrite, are exposed to and react with air and water When water flows over or through sulfur-bearing mine tailings, a chemical reaction occurs between the water and rocks resulting in metal-rich water

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