Microscopic mechanism for enhanced coal bed methane recovery …
Microscopic mechanism for enhanced coal bed methane recovery and outburst elimination by hydraulic slotting: A case study in Yangliu mine, China ... a major hazard resource, as its inadequate management or control may lead to serious coalmine accidents. In China, gas drainage is the main measure adopted to resolve this problem. …
A novel method based on membrane distillation for treating acid mine
1. Introduction. Acid mine drainage (AMD), formed from the oxidation of sulfide minerals such as pyrite (FeS 2, Eq. (1)), 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., …
Coal Mine Methane Recovery at Active and Abandoned …
Methane Recovery at U. S. Coal Mines: Profiles of Selected Gassy Underground Coal Mines 2002 -2016", which profiles the 35 gassiest U.S. mines. Please note that the …
Introduction About the Coalbed Methane Outreach …
project, and destroyed mine methane from gas drainage systems at two of its mines in northern Mexico: Mine VII (Sabinas Basin) and Esmeralda Mine (electric power generation project in the Saltillo Basin). The projects operated successfully for about seven years through 2019. They were decommissioned by MIMOSA in 2020 following closing …
Benefits of Capturing and Using Coal Mine Methane | US EPA
The recovery and use of CMM emissions have benefits for the local community as well as the global environment. Some benefits of capturing and using …
Recovery of Metals from Acid Mine Drainage
For example, even though it is readily accepted that at pH 4 and below abiotic oxidation of iron does not occur, it has been concluded that oxidation of iron in mine drainage of ∼pH 3.5 was not ...
Best Practice Guidance for Effective Methane Drainage …
The Best Practice Guidance on Effective Methane Drainage and Use in Coal Mines fills a critical void. Recommended principles and standards on coal mine methane (CMM) capture and use are set out in a clear and succinct presentation to provide decision-makers with a solid base of understanding from which to direct policy and commercial decisions.
AN INTRODUCTION: BEST PRACTICE GUIDANCE FOR …
Chair, Group of Experts on Coal Mine Methane Telephone: +1 (970) 245-4088 Email: pilcher@ravenridge UNECE Secretariat Mr. Michal Drabik Secretary, Group of Experts on Coal Mine Methane Telephone: + 41 22 917 31 58 Fax: + 41 22 917 00 38 Email: Michal.Drabik@unece ASTANA, KAZAKHSTAN TURNING COAL MINE METHANE …
ECONOMIC COMMISSION FOR EUROPE
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
Acid Mine Drainage Treatment and Control: Remediation …
Hedin RS. Recovery of marketable iron oxide from mine drainage in the USA. Land Contamination and Reclamation. 2003; 11 (2):93-98; 124. Flores RG, Andersen SLF, Maia LKK, José HJ, de Moreira RFPM. Recovery of iron oxides from acid mine drainage and their application as adsorbent or catalyst. Journal of Environmental …
Mitigating Coal Mine Methane Emissions | US EPA
Drainage and Degasification. Coal Mine Methane Recovery: A Primer (July 2019) Coal Mine Methane: A Review of Capture and Utilization Practices with Benefits to Mining Safety and to Greenhouse Gas Reduction (March 2011) Best Practice Guidance for Effective Methane Drainage and Use in Coal Mines (February 2010) (PDF) (86 pp, 2 ) Exit; …
Methane drainage and utilization in coal mines with strong …
Evaluation of methane drainage and use effectiveness. The practice of methane drainage and utilization has promoted enhanced safety, environmental mitigation and energy recovery in the Luling mine. Pre-drainage eliminates the risk of outbursts in the Nos. 8, 9 and 10 seams, and post-drainage reduces the overall gas emissions from …
Iron Mines
The Shirengou iron mine is an underground mine transformed from an open pit mine located in Hebei Province, China. ... for hematite recovery (see Figure 1.14), …
Resource Utilization of Acid Mine Drainage (AMD): A Review
Acid mine drainage (AMD) is a typical type of pollution originating from complex oxidation interactions that occur under ambient conditions in abandoned and active mines. AMD has high acidity and contains a high concentration of heavy metals and metalloids, posing a serious threat to ecological systems and human health. Over the …
Analysis of International Best Practices for Coal Mine …
secure the recovery and use of coal associated gases, primarily coal mine methane (CMM) and coalbed methane (CBM), which are obtained through pre-mine drainage at active coal mines1. This report is not intended to provide a detailed analysis of polices and measures, or to come to a univocal conclusion about best policies and measures.
A review of acid mine drainage: Formation mechanism, …
Acid mine drainage (AMD) contains high concentrations of heavy metals and sulfates with strong acidity. AMD exists in several major coal-producing countries such as China, the United States, Canada, etc., and it poses significant threaten to the environment and human health owing to it exists in nature for a long time and continues to cause …
AN INTRODUCTION: BEST PRACTICE GUIDANCE FOR …
guidance for effective methane drainage and recovery in coal mines raymond c. pilcher, p.g. president, raven ridge resources, incorporated chair, unece group of experts on coal mine methane vice-chair, unece committee on sustainable energy ankara, turkey 10 june 2019 workshop on best practices in coal mine methane capture and utilization
Treatment and recovery of iron from acid mine drainage: a …
In this study, chemical oxidation technology was applied to establish a 12 m 3 /d pilot-scale treatment process to precipitate high-concentration iron (510.3 ± 50 mg/L) …
ChAPTER 9 Methane drainage
ChAPTER 9. hane drainageIntroductionKnowledge and understanding of the basic principles of methane gas control is fundamental to a mine's ability to design efective. …
Pre-Feasibility Study for Coal Mine Methane Recovery …
the technical and economic viability of a coal mine methane (CMM) recovery and utilization project at the Sawang Colliery in India. Advanced Resources International, Inc. (ARI) developed the study for a pre-mine drainage program for the Sawang Colliery located in the East Bokaro coalfield. The mine, which is operated by Central Coalfields
Sources of Coal Mine Methane | US EPA
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). Ventilation air from underground mines, which contains dilute concentrations of methane.
Mine drainage: Remediation technology and resource recovery
Drainage from current and historic mining operations remains a persistent environmental problem. Numerous research and development efforts were made in 2019 with a goal to minimize the impact of mine drainage on the environment, while other research endeavors addressed the mine drainage issue from a different perspective, …
Benefits of Capturing and Using Coal Mine Methane | US EPA
Coal mine methane (CMM) emissions represent a potential source of energy. The recovery and use of CMM emissions have benefits for the local community as well as the global environment. Some benefits of capturing and using CMM include: Reducing greenhouse gas (GHG) emissions, since methane is a very potent …
Treatment and recovery of iron from acid mine drainage: a pilot-scale
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 2O2 can quickly, efficiently, and stably oxidize Fe 2+ with an oxidation rate of 99.83%. The oxidation conditions are ...
Reservoir reconstruction technologies for coalbed methane recovery …
The pre-mining degasification and gas drainage in the deep coal seams is technically challenging, therefore, CBM reservoir stimulation emphasizing on the permeability enhancement is required for the mine degasification and for the methane energy recovery as well [15], [16].
Best Practice Guidance for Effective Methane Drainage …
The Best Practice Guidance on Effective Methane Drainage and Use in Coal Mines fills a critical void. Recommended principles and standards on coal mine methane (CMM) capture and use are set out in a clear and succinct presentation to …
Management and Treatment Methods of Acid Mine Drainage
Ziemkiewicz, P., & Skousen, J. (1998). The use of steel slag in acid mine drainage treatment and control. 19th Annual West ia Surface Mine Drainage Task Force Symposium, 28(1), 46–56. Google Scholar Name, T., & Sheridan, C. (2014). Remediation of acid mine drainage using metallurgical slags. Minerals Engineering, 64, 15–22.
Basics of Coal Mine Methane
U.S. 2020 CMM Emissions for Active Underground Coal Mines by State (MMTCO2e) U.S. 2020 CMM Emissions for Active Underground Coal Mines by State (MMTCO2e)
Methane drainage and utilization in coal mines with strong …
DOI: 10.1016/J.JNGSE.2014.07.023 Corpus ID: 129579894; Methane drainage and utilization in coal mines with strong coal and gas outburst dangers: A case study in Luling mine, China
Coal Mine Methane Recovery at Active and Abandoned …
Methane Recovery at U. S. Coal Mines: Profiles of Selected Gassy Underground Coal Mines 2002 -2016", which profiles the 35 gassiest U.S. mines. Please note that the tables below include additional mines not among the 35 gassiest U.S. mines, but that still have gas drainage operations. Underground Coal Mines (U) Alabama Mine Name …