scholarly journals Acid Mine Water Neutralisation Analysis Using CaO and Fly Ash at PT. Alamjaya Bara Pratama Kutai Kartanegara District, East Kalimantan Province

2019 ◽  
Vol 4 (2) ◽  
pp. p128
Author(s):  
Ika Tri Novianti Siregar ◽  
Edy Nursanto ◽  
Dyah Probowati
Keyword(s):  
Heavy Metals ◽  
Fly Ash ◽  
Mine Water ◽  
Coal Fly Ash ◽  
Hydroxyl Group ◽  
Mass Variation ◽  
Acid Mine Water ◽  
Acid Mine ◽  
East Kalimantan ◽  
Fe And Mn

The handling of Acid Mine Water done at PT. Alamjaya Bara Pratama utilizes Cao and from prior research, fly ash is used as an adsorbent in neutralising Acid Mine Water. Hence the resarcher conducted the research to compare the effectiveness of Cao and fly ash in neutralising Acid Mine Water. The usage of CaO nd fly ash uses a laboratorium scale with 1000ml of Acid Mine Water, a CaO mass variation of 0,4, 0,5 and 0,6 gram whereas with a fly ash mass variation of 50, 55 and 60 gram and a stirring speed of 50 and 100 rpm. Results shows that the addition of CaO and fly ash and stirring speed increases the pH and reduces the content of Fe and Mn. The adsorbtion of the metals Fe and Mn by CaO and coal fly ash can occurs as most CaO contains the mineral compund Epistilbite (CaAl2Si6O16.5H2O), before conducting the experiment it shows that most of the fly ash contains the mineral compund Quartz (SiO2) and mullite (Al6Si2O13). Silica and Alumina has a polar side with an active hydroxyl group (-OH) which acts in the adsorbtion process between heavy metals and adsorbents in a solution containing water.

Removal of Ions and Acidity from Acid Mine Water Using Transformed Fly Ash

2013 ◽  
Vol 32 (2) ◽  
pp. 133-138 ◽  
Author(s):  
Bably Prasad ◽  
Arun Kr. Mahato ◽  
Hemant Kr. Mondal ◽  
B. K. Tewary
Keyword(s):  
Fly Ash ◽  
Mine Water ◽  
Acid Mine Water ◽  
Acid Mine

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 Adsorption Kinetics of Fe and Mn with Using Fly Ash from PT Semen Baturaja in Acid Mine Drainage

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Indah Purnamasari ◽  
Endang Supraptiah
Keyword(s):  
Heavy Metal ◽  
Fly Ash ◽  
Acid Mine Drainage ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Mine Drainage ◽  
Coal Fly Ash ◽  
Adsorption Model ◽  
Acid Mine ◽  
Fe And Mn

One used method to reduce heavy metal ions in acid mine drainage is to adsorb them by coal fly ash. This research aimed to study the isotherms equilibrium and the adsorpstion kinetics that fit with decreasing metals ion. Acid mine draigane and fly ash were charge into batch coloumn adsorption with specified comparison. Variables investigated were dactivated and activated fly ash, adsorption times (0, 20, 30, 40,50, and 60 minutes), adsorben weights (10, 20, 30, 40, 50, and 60 gram), and pH (1, 3, 5, 7, and 9). The results showed that fly ash can be used to reduce the levels of heavy metal ions Fe and Mn. Coal fly ash adsorption model of acid mine drainage fits to Freundlich adsorption isotherm in all condition. First order pseudo model kinetics is suitable for Fe and Mn adsorption processes. The value of adsorpsi rate constants vary around : Fe and Mn (deactivated fly ash) 0.2388 min-1 with R2 = 0.4455 and 0.4173 min-1 with R2 = 0.9781, Fe and Mn (activated fly ash) 0.5043 min-1 dengan R2 = 1 and 0.2027 min-1 with R2 = 0.8803.

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.

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