Download or read book Performance Analysis of a Successive Alkalinity Producing System Treating Acid Mine Drainage at Simmons Run in Coshocton County Ohio written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance of a Successive Alkalinity producing System SAPS in Treating Acid Mine Drainage at Rock Run of Monday Creek Ohio written by Melissa B. Christensen and published by . This book was released on 2001 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Successive Alkalinity producing Systems SAPS for the Treatment of Acidic Mine Drainage written by Douglas A. Kepler and published by . This book was released on 1994 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Constructed wetland treatment system effectiveness has been limited by the alkalinity-producing, or acidity-neutralizing, capabilities of the systems. Anoxic limestone drains (ALD's) have allowed for the treatment of approximately 300 mg/L net acidic mine drainage, but current design guidance precludes using successive ALD's to generate alkalinity in excess of 300 mg/L because of concerns with dissolved oxygen. "Compost" wetlands designed to promote bacterially mediated sulfate reduction are suggested as a means of generating alkalinity required in excess of that produced by ALD's. Compost wetlands create two basic needs of sulfate reducing bacteria; anoxic conditions resulting from the inherent oxygen demand of the organic substrate and quasi-circumneutral pH values resulting from the dissolution of the carbonate fraction of the compost. However, sulfate reduction treatment area needs are generally in excess of area availability and/or cost effectiveness. Second generation alkalinity-producing systems demonstrate that a combination of existing treatment mechanisms has the potential to overcome current design concerns and effectively treat acidic waters ad infinitum. Successive alkalinity-producing systems (SAPS) combine ALD technology with sulfate reduction mechanisms. SAPS promote vertical flow through rich organic wetland substrates into limestone beds beneath the organic compost, discharging the pore waters. SAPS allow for conservative wetland treatment sizing calculations to be made as a rate function based on pH and alkalinity values and associated contaminant loadings. SAPS potentially decrease treatment area requirements and have the further potential to general alkalinity in excess of acidity regardless of acidity concentrations.

Download or read book Acid Mine Drainage Formation and Abatement written by Ohio State University. Research Foundation and published by . This book was released on 1971 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Control of Acid Mine Drainage written by and published by . This book was released on 1985 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation Optimization of Acid Mine Drainage Abatement Alternatives written by and published by . This book was released on 1973 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report develops an approach for reliably evaluating the impact of proposed water pollution abatement plans for a river basin. A water quality simulation model is developed which has the capability of routing acid mine drainage through a river basin. A computer procedure providing for the optimization of alternatives is also developed. The simulation model is used to evaluate alternatives within a larger framework that involves optimization. The approach is to use the simulation as a method of impact assessment which is manipulated by optimization logic. Thus the simulation can be used in two ways: as a stand alone model or as an adjunct to optimization. The Tioga River Basin in Pennsylvania has been chosen as a case study. (Author Modified Abstract).

Download or read book Acid Mine Drainage written by United States. Division of Water Supply and Pollution Control and published by . This book was released on 1962 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies on Limestone Treatment of Acid Mine Drainage written by Bituminous Coal Research, Inc and published by . This book was released on 1970 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Progress in Controlling Acid Mine Water written by Walter C. Lorenz and published by . This book was released on 1962 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Role of Oxygen Transfer in Acid Mine Drainage Treatment written by Craig C. Hustwit and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neutralization of High Ferric Iron Acid Mine Drainage written by Roger C. Wilmoth and published by . This book was released on 1970 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rotating Disc Biological Treatment of Acid Mine Drainage written by Harvey Olem and published by . This book was released on 1980 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acid Mine Drainage Treatment by Ion Exchange by Jim Holmes and Ed Kreusch written by Jim Holmes and published by . This book was released on 1972 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Treatment of Acid Mine Drainage by Reverse Osmosis written by Rex Chainbelt, inc. Technical Center and published by . This book was released on 1970 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microbial Factor in Acid Mine Drainage Formation written by Robert Andrew Baker and published by . This book was released on 1970 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Applicability of Passive Treatment Systems for the Mitigation of Acid Mine Drainage at the Williams Brothers Mine Mariposa County California written by Erin Jane Clyde and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Williams Brothers Mine is located in Mariposa County, California. Surface waters from the site drain into the south fork of the Merced River and the San Joaquin River Basin. The mine was developed in the 1980s and mined intermittently until 1996. In 1998, concerns of acidic drainage at the site arose. Effluent sampling by Engineering Remediation Resources Group (ERRG) found acid mine drainage (AMD) characterized by a pH of 3.9, sulphate concentrations of 100 mg/L and low metal concentrations of 0.074, 4.60, 1.23, 0.047 and 0.133 mg/L for Cu, Fe, Mn, Ni and Zn, respectively. The aim of this research was to evaluate passive treatment system alternatives for the mitigation of the AMD to meet water quality objectives for the San Joaquin River Basin. A bench-scale study was undertaken which consisted of 3 systems treating synthetic AMD: (1) a peat biofilter to remove dissolved metals followed by an anoxic limestone drain (ALD) to increase alkalinity and pH; (2) a sulfate reducing bacteria (SRB) bioreactor followed by an ALD, in which SRB reduce sulphate to sulfides, generating alkalinity and decreasing metal concentrations via metal sulfide precipitation; and (3) a SRB bioreactor. Synthetic AMD was produced to represent AMD characteristics observed at the site. The peat-ALD system effluent pH was 6.9 and concentrations of Fe and Cu decreased to below water quality objectives with concentrations of 0.008 and 0.06, respectively. The SRB-ALD and SRB system effluents met water quality objectives for pH and Cu, Ni and Zn metal concentrations. The effluent pH for both systems was 6.5. The SRB-ALD system reduced Cu, Ni and Zn to concentrations of 0.004, 0.016 and 0.025 mg/L, respectively. The SRB system reduced metal concentrations for Cu, Ni and Zn 0.006, 0.010 and 0.027 mg/L, respectively. Based on the bench-scale study, the pilot-scale system consisted of a combined passive treatment system containing a peat biofilter, SRB bioreactor and a limestone drain. Pilot-scale testing commenced on May 23rd, 2007. To date, some metal attenuation has been observed, with average effluent concentrations of Cu, Fe, Mn, Ni and Zn equal to

Download or read book Combination Limestone lime Neutralization of Ferrous Iron Acid Mine Drainage written by Roger C. Wilmoth and published by . This book was released on 1978 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: