iron mine methane drainage and recovery

  • Sources of Coal Mine Methane | US EPA

    Sep 30, 2021 · CMM is emitted from five sources: Degasification systems at underground coal mines (also commonly referred to as drainage systems). These systems may employ vertical and/or horizontal wells to recover methane in advance of mining activities (known as "pre-mine drainage") or after mining activities (in "gob" or "goaf" wells).

  • Identifying Opportunities for Methane Recovery at U.S ...

    Mine drainage systems in place may be especially good candidates for the developme nt of cost-effective methane recovery and use projects because a ready supply of high- or medium-concentration mine gas already exists. There are also projects at abandoned mines in the U.S.; however, this report only profiles mines that were active in 2016.

  • How does mine drainage occur? | U.S. Geological Survey

    Mine drainage is formed when pyrite (an iron sulfide) is exposed and reacts with air and water to form sulfuric acid and dissolved iron. Some or all of this iron can precipitate to form the red, orange, or yellow sediments in the bottom of streams containing mine drainage. The acid runoff further dissolves heavy metals such as copper, lead, and mercury into groundwater or surface water.

  • Down-flow Fixed-Structured Bed Reactor: An Innovative ...

    Down-flow Fixed-Structured Bed Reactor: An Innovative Reactor Configuration Applied to Acid Mine Drainage Treatment and Metal Recovery A down-flow fixed-structured bed reactor (DFSBR) was operated for 277 days treating a mixture of synthetic substrates simulating an iron-rich acid mine drainage (AMD) and the soluble fraction of a sugarcane vinasse.

  • What is methane and why is it a safety concern? | U.S ...

    Methane (a gas composed of carbon and hydrogen) is produced two ways:Through biologic decomposition of organic matter at shallow depths. Swamps, landfills, and even shallow bedrock are some settings where this occurs. Methane can also be derived over millions of years by high pressure and high temperature processes that produce fossil fuels deep underground.

  • Coal Mine Methane | UNECE

    The work of the Group of Experts on Coal Mine Methane (CMM) has a benefit for coal mine safety through improvements in the drainage, recovery and use of coal mine methane. The Group of Experts on Coal Mine Methane (CMM) is a subsidiary body of the Committee on Sustainable Energy (CSE) that promotes the reduction of greenhouse gas emissions from ...

  • Minerals | Special Issue : Acid Mine Drainage Recovery

    Apr 30, 2019 · The aim of this work is to evaluate the microalga Muriellopsis sp. as a potential remover of metallic ions such as copper (Cu 2+), zinc (Zn 2+) and iron (Fe 2+), pollutants of acid mine drainage (AMD) type waters. For this, the removal of these ions was verified in artificial acid waters with high concentrations of the ions under examination.

  • Down-flow fixed-structured bed reactor: An innovative ...

    Jul 15, 2017 · Sulfate and iron from a synthetic acid mine drainage were efficiently removed. • Balanced methanogenesis and sulfidogenesis occurred at COD/SO 4 2-ratio of 2. • Synthetic vinasse was feasible as electron donor for the biological sulfate reduction. • The alkalinity resulted from the processes promoted the reactor operating stability. •

  • Using Acid Mine Drainage to Recover a Coagulant from Water ...

    Nov 18, 2016 · 高达12%返现 · We evaluated the recovery of aluminum from water treatment residuals by acidification using acidic coal mine drainage as an extraction solution. The water treatment residuals had Al and total Fe concentrations of 1.2 and 1.3%, respectively, based on mass. The influence of contact time of the mine water with the water treatment residuals and the percent of excess sulfate

  • A novel method based on membrane distillation for treating ...

    Sep 01, 2021 · Acid mine drainage (AMD), formed from the oxidation of sulfide minerals such as pyrite (FeS 2, Eq. ), has become a severe environmental issue (Sharma et al., 2020; Daraz et al., 2021). Typically, the AMD is characterized by high concentration of sulfate and iron as well as low pH (2–4) (Yan et al., 2020; Wang et al., 2021a).

  • ore mine methane recovery and utiliation

    Mine Safety and Health Act of 1977, 30 U.S.C. 801 et seq. FMC seeks to vacate two 104(a) citations that allege violations of 30 C.F.R. 57.22305, which provides: Equipment used in or beyond the last open crosscut and equipment used in areas where methane may enter the air current, such as pillar recovery workings, longwall faces

  • Recovery of a Marketable Iron Product from Coal Mine

    Recovery of a Marketable Iron Product from Coal Mine Drainage Robert S Hedin Hedin Environmental 634 Washington Road Pittsburgh, PA 15228 The purpose of mine drainage treatment systems is the production of an effluent whose quality satisfies either the terms of an NPDES permit or a water quality goal set by a restoration group.

  • Treatment and recovery of iron from acid mine drainage: a ...

    Dec 08, 2021 · In this study, the feasibility of treating and recovering valuable Fe from acid mine drainage by H 2 O 2-NaOH technology was explored. The results can be summarized as follow: (1) Owing to the acidity of acid mine drainage, H 2 O 2 can quickly, efficiently, and stably oxidize Fe 2+ with an oxidation rate of 99.83%. The oxidation conditions are ...

  • Iron Oxide Recovery - Hedin Env

    Iron Oxide Recovery (IOR) is a subsidiary of Hedin Environmental and specializes in the production of pigment-grade iron oxide from abandoned coal mine drainage. IOR is located in southwestern Pennsylvania , where long-abandoned coal mines discharge millions of gallons of iron-contaminated water into receiving streams daily.

  • Methane Drainage | Article about Methane Drainage by The ...

    Methane drainage is used to reduce inflows of methane from coal beds and rock to mine workings and to aid the ventilation of mine shafts and completely prevent or considerably reduce enforced idleness in extraction (production) districts caused by the filling of workings with gas.

  • Methane Management | UNECE

    Sep 27, 2019 · Best Practice Guidance for Effective Methane Management in the Oil and Gas Sector: MRV and Mitigation - avilable on-line. The content of the document was approved by the Committee on Sustainable Energy at its 28th annual session held on 25-27 September 2019 in Geneva, Switzerland. For more information please visit a page dedicated to the project within the framework of which the

  • Coal Santillan - Global Methane Initiative

    Recovery and Use Projects Mario Santillán –– Minosa CoalCoal Sector ... AHMSA. Coal Mines. Iron ore Mines. Distances in Miles: Monclova – Eagle Pass, TX: 150. Monclova – Laredo, TX: 160. Monclova – Palau: 60. Monclova – Hércules: 150. ... Methane Gas Drainage Systems . CMM CMM CBM. Unidad MIMOSA. MINERA DEL NORTE. Sources of ...

  • Recovery of Byproducts from Acid Mine Drainage Treatment ...

    5.2.4 Utilization of Alkali in Mine Water for Removal of Iron(II) 107. 5.2.5 Modeling 107. ... 6 Recovery of Ochers from Acid Mine Drainage Treatment: A Geochemical Modeling and Experimental Approach 159 ... 11.3.6 Mine Methane Gas Extraction 342. 11.3.6.1

  • METHANE GAS FROM UNDERGROUND COAL MINES: A CLEAN

    Jan 01, 1984 · Methane gas coming from coal seams could be an addition to gas supply for U. S. energy needs. It has been estimated that methane gas in place can reach values from 60 to 200 Tm 3.() The extraction cost of this gas is still quite high.However, some gassy coal mines cannot operate on full production capacity as the methane gas mixed with air constitutes an explosive ().

  • ECONOMIC COMMISSION FOR EUROPE - UNECE

    effective methane emission reductions through recovery and use from four key methane sectors: coal mining, landfills, oil and gas systems, and agriculture. The Coal Subcommittee has brought together key experts in coal mine methane recovery and utilisation to share information about state‐of‐the‐art

  • Intelligent and integrated techniques for coalbed methane ...

    Jun 09, 2017 · Coalbed methane (CBM) recovery is a crucial approach to realize the exploitation of a clean energy and the reduction of the greenhouse gas emission. In the past 10 years, remarkable achievements on CBM recovery have been obtained in China. However, some key difficulties still exist such as long borehole drilling in complicated geological condition, and poor gas drainage effect due

  • 21.1 Summary of Coal Industry - Global Methane

    issues through employment of a holistic approach targeting gas drainage systems and mine ventilation air. The mine ventilation systems at the mines account for 70 percent of the methane liberated at the three mines, with the remainder of emissions coming from methane drainage systems (CDM, 2014).

  • Pre-Feasibility Study for Methane Drainage and Utilization ...

    The mine is expected to become gassier as operators move northward within the block. 4.1 Recommended Methane Drainage Approach Using Long, Directionally Drilled Horizontal Boreholes for Pre-Mine Drainage Based on a detailed review of data provided by the mine, the recommended methane drainage approach for the Casa Blanca Mine area incorporates ...

  • 5 Research Opportunities in Environmental Technologies ...

    Methane gas, inherently associated with coal beds, is released as the coal is mined. Methane is a greenhouse gas that contributes to global warming. Some mines capture the gas in methane drainage systems, but these systems on average recover only about 50 percent of

  • ore mine methane recovery and utiliation

    Mine Safety and Health Act of 1977, 30 U.S.C. 801 et seq. FMC seeks to vacate two 104(a) citations that allege violations of 30 C.F.R. 57.22305, which provides: Equipment used in or beyond the last open crosscut and equipment used in areas where methane may enter the air current, such as pillar recovery workings, longwall faces

  • Treatment and recovery of iron from acid mine drainage: a ...

    Dec 08, 2021 · In this study, the feasibility of treating and recovering valuable Fe from acid mine drainage by H 2 O 2-NaOH technology was explored. The results can be summarized as follow: (1) Owing to the acidity of acid mine drainage, H 2 O 2 can quickly, efficiently, and stably oxidize Fe 2+ with an oxidation rate of 99.83%. The oxidation conditions are ...

  • How does mine drainage occur? | U.S. Geological Survey

    Mine drainage is formed when pyrite (an iron sulfide) is exposed and reacts with air and water to form sulfuric acid and dissolved iron. Some or all of this iron can precipitate to form the red, orange, or yellow sediments in the bottom of streams containing mine drainage. The acid runoff further dissolves heavy metals such as copper, lead, and mercury into groundwater or surface water.

  • Iron Oxide Recovery Pamphlet - Reclaim Abandoned Mine ...

    Acid Mine Drainage at the Old Forge Bore Hole in Old Forge, PA Acid Mine Drainage and EPCAMR’s Iron Oxide Resource Recovery Efforts Acid Mine Drainage at the Jeddo Mine Tunnel in Butler Township, PA Pricing: Tie-dyed t-shirts: $10 donation Iron oxide pigment: $5 per 1 oz. “Got AMD?” sticker: $2 donation

  • (PDF) Recovery of Iron from Acid Mine Drainage in the Form ...

    ### Mine drainage The best known examples of acid sulfate waters are those released from mines where coal and metallic sulfide ores have been exploited (Ash et al. 1951, Barton 1978, Nordstrom ...

  • Recovery of Byproducts from Acid Mine Drainage Treatment ...

    5.2.4 Utilization of Alkali in Mine Water for Removal of Iron(II) 107. 5.2.5 Modeling 107. ... 6 Recovery of Ochers from Acid Mine Drainage Treatment: A Geochemical Modeling and Experimental Approach 159 ... 11.3.6 Mine Methane Gas Extraction 342. 11.3.6.1

  • Pre-Feasibility Study for Methane Drainage and Utilization ...

    The mine is expected to become gassier as operators move northward within the block. 4.1 Recommended Methane Drainage Approach Using Long, Directionally Drilled Horizontal Boreholes for Pre-Mine Drainage Based on a detailed review of data provided by the mine, the recommended methane drainage approach for the Casa Blanca Mine area incorporates ...

  • Recovery of stored gas in coal by nitrogen injection - a ...

    methane recovery, particularly from mineable coal deposits. The injection of mixed gas is considered to possibly provide a synergy of production mechanisms which would result in lowering of CO. 2. in mine air (Reeves and Oudinot, 2004). The storage of gas in general is dependent on the coal rank especially in virgin seams. Higher rank

  • 21.1 Summary of Coal Industry - Global Methane

    issues through employment of a holistic approach targeting gas drainage systems and mine ventilation air. The mine ventilation systems at the mines account for 70 percent of the methane liberated at the three mines, with the remainder of emissions coming from methane drainage systems (CDM, 2014).

  • Development of an integrated microbiological approach

    Acid mine drainage (AMD) is acknowledged as one of the most pernicious forms of water pollution in areas of the world that have active or historic mining operations (e.g. Banks et al. 1997; Younger et al. 2002). AMD may be generated within deep mine shafts and adits, spoil heaps and tailing de-

  • #Silt water treatment plant feeling effects of # ...

    Dec 05, 2021 · S. 1417 and H.R. 3123, Leadville Mine Drainage Tunnel Remediation Act of 2009 S. 1777: Good Samaritan Cleanup of Abandoned Hardrock Mines Act of 2009 S. 587: Fracturing Responsibility and Awareness of Chemicals (FRAC) Act

  • Compliance Offset Protocol Mine Methane Capture Projects

    underground mine methane drainage or ventilation air methane activity. (6) “ASTM” means the American Society of Testing and Materials. (7)(6) “Basin” is

  • Coal Mine Methane: A Review of Capture and Utilization ...

    Coal mine methane (CMM) is a general term for all methane released mainly during and after mining operations. Although, methane captured prior to mining can also be considered associated to mining and thus can be considered as coal mine methane, it can also be termed as coalbed methane (CBM). CMM shows great variability in flow rate and

  • Applied Mechanics and Materials Vols. 295-298 | p. 58 ...

    Abstract: According to situation of coal mine methane drainage and utilization, the five experienced development stages of coal mine methane drainage technology was summarized, the reasons of low rate of coal mine methane drainage were analyzed. Coal-seam methane utilization was analyzed from methane purification, methane generating electricity ...