Treatment of Acid Mine Drainage Water Using Fly Ash and Water Softening Sludge

1991 ◽  
Vol 245 ◽  
Author(s):  
Asmare Atalay ◽  
Srinivas Chaluvadi ◽  
Joakim G. Laguros ◽  
Jerry J. Black
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Mine Water ◽  
Environmental Protection Agency ◽  
Mine Drainage ◽  
Abandoned Mines ◽  
Water Quality Criteria ◽  
Water Softening ◽  
Acid Mine Water ◽  
Acid Mine

ABSTRACTAcid mine drainage (AMD) is being recognized as a major pollution source to surface water. Heavy trace metals emanating from abandoned mines are continuously being released and contaminating surrounding lakes and streams. The potential for utilizing fly ash and water softening sludge (WSS) as buffering and adsorption media for AMD water was assessed. The results indicated that AMD water treated with fly ash either met or exceeded the U.S. Environmental Protection Agency water quality criteria for effluent standards for total iron, manganese, suspended solids, and pH. The optimum dosage of fly ash and sludge needed for treating the acid mine water from Picher field, an abandoned lead and zinc mine in Oklahoma, has been determined. It was observed that each had better than 90 percent efficiency for removal of heavy metals from the AMD water. The combined use of fly ash and WSS was also investigated, but there was no significant improvement compared to using fly ash alone. In general fly ash had a greater buffering capacity to treat acid mine water than did WSS. Consequently, fly ash can be used to treat AMD water and minimize its environmental impact.

scholarly journals Fate of sulphate removed during the treatment of circumneutral mine water and acid mine drainage with coal fly ash: Modelling and experimental approach

2011 ◽  
Vol 24 (13) ◽  
pp. 1467-1477 ◽  
Author(s):  
Godfrey Madzivire ◽  
Wilson M. Gitari ◽  
V.R. Kumar Vadapalli ◽  
Tunde V. Ojumu ◽  
Leslie F. Petrik
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Mine Water ◽  
Experimental Approach ◽  
Mine Drainage ◽  
Coal Fly Ash ◽  
Acid Mine

scholarly journals KAJIAN PENANGGULANGAN AIR ASAM TAMBANG PADA SALAH SATU PERUSAHAAN PEMEGANG IJIN USAHA PERTAMBANGAN DI DESA LEMO, KABUPATEN BARITO UTARA, KALIMANTAN TENGAH

2016 ◽  
Vol 12 (1) ◽  
pp. 50
Author(s):  
Susan Nadya Irawan ◽  
Idiannor Mahyudin ◽  
Fakhrur Razie ◽  
Susilawati Susilawati
Keyword(s):  
Acid Mine Drainage ◽  
Mine Water ◽  
Mine Drainage ◽  
Research Area ◽  
Low Ph ◽  
Test Results ◽  
Acidic Water ◽  
Acid Mine Water ◽  
Acid Mine ◽  
Dry Cover

This study aims to know the factors that cause the formation of Acid Mine Water, to analyze the methods of prevention of acid mine drainage has been running effectively, to analyze how to prevent the formation of acid mine water at the research area. This research was conducted atLemovillage,North Barito Regency. These results indicate the analysis of water quality in the company with an indication acidic low pH values and high metal values. It is supported by soil pH test results showed low pH, especially on the layer in direct contact or close to coal. Sources of acid mine drainage at the company are from the oxidation of water and oxygen on the wall of rock at pit, water from the dumping area, water flowing from the temporary stockpile into the settling pond 2. From these, we can conclude the results. Recommendations prevention of acid mine drainage can be done by moving the location of the temporary stockpile in accordance with, more effective functioning of sump, controlling the movement of acidic water that has formed, accommodate and neutralize the acidic water that has formed, forming a layer of dry cover, separating the flow of water is not acidic and acidic

scholarly journals Assessment of Characteristics of Acid Mine Drainage Treated with Fly Ash

2021 ◽  
Vol 11 (9) ◽  
pp. 3910
Author(s):  
Saba Shirin ◽  
Aarif Jamal ◽  
Christina Emmanouil ◽  
Akhilesh Kumar Yadav
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Power Plants ◽  
Mine Drainage ◽  
Thermal Power ◽  
Mineralogical Characterization ◽  
Acid Mine ◽  
Before And After ◽  
Abandoned Coal Mines

Acid mine drainage (AMD) occurs naturally in abandoned coal mines, and it contains hazardous toxic elements in varying concentrations. In the present research, AMD samples collected from an abandoned mine were treated with fly ash samples from four thermal power plants in Singrauli Coalfield in the proximate area, at optimized concentrations. The AMD samples were analyzed for physicochemical parameters and metal content before and after fly ash treatment. Morphological, geochemical and mineralogical characterization of the fly ash was performed using SEM, XRF and XRD. This laboratory-scale investigation indicated that fly ash had appreciable neutralization potential, increasing AMD pH and decreasing elemental and sulfate concentrations. Therefore, fly ash may be effectively used for AMD neutralization, and its suitability for the management of coalfield AMD pits should be assessed further.

scholarly journals Characterisation of the arsenic resistance genes in Bacillus sp. UWC isolated from maturing fly ash acid mine drainage neutralised solids

2010 ◽  
Vol 106 (1/2) ◽  
Author(s):  
Wicleffe Musingarimi ◽  
Marla Tuffin ◽  
Donald Cowan
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Sodium Arsenite ◽  
Mine Drainage ◽  
Genomic Library ◽  
Coli Strain ◽  
Bacillus Sp ◽  
Sensitive Mutant ◽  
Arsenic Resistance ◽  
Acid Mine

An arsenic resistant Bacillus sp. UWC was isolated from fly ash acid mine drainage (FA-AMD) neutralised solids. A genomic library was prepared and screened in an arsenic sensitive mutant Escherichia coli strain for the presence of arsenic resistance (ars) genes. Sequence analysis of a clone conferring resistance to both sodium arsenite and sodium arsenate revealed homologues to the arsR (regulatory repressor), arsB (membrane located arsenite pump), arsC (arsenate reductase), arsD (second regulatory repressor and a metallochaperone) and arsA (ATPase) genes from known arsenic resistance operons. The Bacillus sp. UWC arsRBCDA genes were shown to be arranged in an unusual manner with the arsDA genes immediately downstream of arsC.

scholarly journals Treatment of acid mine drainage with coal fly ash in a jet loop reactor pilot plant

2020 ◽  
Vol 159 ◽  
pp. 106611 ◽  
Author(s):  
Rosicky Methode Kalombe ◽  
Tunde Victor Ojumu ◽  
Vinny Ndjate Katambwe ◽  
Michael Nzadi ◽  
Denzil Bent ◽  
...  
Keyword(s):  
Fly Ash ◽  
Acid Mine Drainage ◽  
Pilot Plant ◽  
Mine Drainage ◽  
Coal Fly Ash ◽  
Loop Reactor ◽  
Acid Mine
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