PENGARUH JENIS SEDIMEN WETLAND DALAM REDUKSI SULFAT PADA LIMBAH AIR ASAM TAMBANG (AAT)

Increasing mining activities in several regions in Indonesia, began to faceproblems, namely of environmental pollution. One of the mining waste that is liquidsulfur, or acid mine water, which can lower the pH of the water and dissolves heavymetals. Countermeasures for the chemical method is to use lime, but this is lesseffective. The method is good and is environmentally friendly way by using biologicalbacteria sulphate reduction bacteria (SRB) that naturally there are many in thesediment wetland. Goal of this research is to find the type of sediment wetland mosteffectively increase the pH and decrease the concentration of sulphate in acid minewater. The sediment wetland is used mangroves, swamp, rice fields, and beaches.Treatment bioreaktor made on the filled with sediment underneath the compost isgiven further incubation for 50 days. The observation of pH and content of sulphatebased on the value of OD spektrofotometer and known pH increased to the highestin the pH of 7.3 is in the swamp sediment treatment, while the only other treatmentuntil the pH 6-6,7. Increasing the pH in accordance with the decrease in the rate ofSO4 is most sharply in the swamp sediment treatment as well as the most effectivetreatment.

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Removal of Metals by Sulphide Precipitation Using Na2S and HS−-Solution

ChemEngineering ◽

10.3390/chemengineering4030051 ◽

2020 ◽

Vol 4 (3) ◽

pp. 51

Author(s):

Hanna Prokkola ◽

Emma-Tuulia Nurmesniemi ◽

Ulla Lassi

Keyword(s):

Mine Water ◽

Mine Drainage ◽

Anaerobic Treatment ◽

Reduction Reaction ◽

Sulphate Reduction ◽

Acidic Mine Drainage ◽

Acid Mine Water ◽

Metal Hydroxides ◽

Sulphide Precipitation ◽

Ph Dependent

Precipitation of metals as metal sulphides is a practical way to recover metals from mine water. Sulphide precipitation is useful since many metals are very sparingly soluble as sulphides. Precipitation is also pH dependent. This article investigates the precipitation of metals individually as sulphides and assesses which metals are precipitated as metal hydroxides by adjustment of the pH. The precipitation of different metals as sulphides was studied to determine the conditions under which the HS− solution from the sulphate reduction reaction could be used for precipitation. H2S gas and ionic HS− produced during anaerobic treatment could be recycled from the process to precipitate metals in acidic mine drainage (AMD) prior to anaerobic treatment (Biological sulphate reduction), thereby recovering several metals. Precipitation of metals with HS− was fast and produced fine precipitates. The pH of acid mine water is about 2–4, and it can be adjusted to pH 5.5 before sulphide precipitation, while the precipitation, on the other hand, requires a sulphide solution with pH at 8 and the sulphide in HS− form. This prevents H2S formation and mitigates the risk posed from the evaporation of toxic hydrogen sulphur gas. This is a lower increase than is required for hydroxide precipitation, in which pH is typically raised to approximately nine. After precipitation, metal concentrations ranged from 1 to 30 μg/L.

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Estuary Sediment Treatment for Reducing Sulfate in Acid Mine Water

Environment and Natural Resources Journal ◽

10.32526/ennrj.18.2.2020.18 ◽

2020 ◽

Vol 18 (2) ◽

pp. 191-199

Author(s):

Fahruddin Fahruddin ◽

◽

As’adi Abdullah ◽

Nurhaedar Nurhaedar ◽

Nursiah La Nafie ◽

...

Keyword(s):

Mine Water ◽

Acid Mine Water ◽

Sediment Treatment ◽

Acid Mine ◽

Estuary Sediment

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Studies on Burning Process of Clinker Used for Corrosion-Resisting Cementitious Material in Fill Mining

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.311-313.1527 ◽

2011 ◽

Vol 311-313 ◽

pp. 1527-1530 ◽

Cited By ~ 1

Author(s):

Bing Wen Wang ◽

Liang Zhang ◽

Jian Wang ◽

Zhi Gang Wang ◽

Yi Lü

Keyword(s):

Mine Water ◽

Chemical Method ◽

High Salinity ◽

Cementitious Material ◽

Cement Clinker ◽

Acid Mine Water ◽

Burning Process ◽

Chemical Attack ◽

Suitable Amount ◽

Physical And Chemical

Cemented filling body exposed to acid mine water or high salinity mine water will be subjected to various kinds of physical and chemical attack. In this paper, the burning process of a modified special cement clinker used for corrosion-resisting cementitious material in fill mining is studied by means of TG-DTA, XRD, and chemical method. The main minerals of this kind of clinker are C3S, C2S, C4A3, and C4AF. The optimal firing temperature range of the clinker is from 1300°C to 1380°C, and a suitable amount of F- and SO3 in raw meals is helpful to the coexistence of C3S and C4A3in the clinker.

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Report on the U.S. Geological Survey's evaluation program for standard reference samples distributed in October 1993 : T-127 (trace constituents), M-128 (major constituents), N-40 (nutrients), N-41 (nutrients), P-21 (low ionic strength), Hg-17 (mercury), AMW-3 (acid mine water), and WW-1 (whole water)

Open-File Report ◽

10.3133/ofr9442 ◽

1994 ◽

Author(s):

H.K. Long ◽

J.W. Farrar

Keyword(s):

Ionic Strength ◽

Mine Water ◽

Acid Mine Water ◽

Evaluation Program ◽

Acid Mine ◽

Trace Constituents ◽

Low Ionic Strength ◽

Reference Samples ◽

The U.S ◽

Whole Water

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Physical-Chemical Treatment of Acid Mine Water from a Superfund Site

Journal of Environmental Systems ◽

10.2190/91vq-hn0e-m2bj-58up ◽

1989 ◽

Vol 19 (3) ◽

pp. 237-263 ◽

Cited By ~ 3

Author(s):

Marcia H. Bates ◽

John N. Veenstra ◽

John Barber ◽

Raju Bernard ◽

Julie Karleskint ◽

...

Keyword(s):

Chemical Treatment ◽

Mine Water ◽

Superfund Site ◽

Acid Mine Water ◽

Acid Mine ◽

Physical Chemical

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Analysis on Factors which Impacted Environmental Pollution in Food-Related Industries

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.726-731.1449 ◽

2013 ◽

Vol 726-731 ◽

pp. 1449-1452

Author(s):

Zheng Xiang ◽

Shi Lei Wu ◽

Xin Zhao

Keyword(s):

Environmental Pollution ◽

Food Consumption ◽

Food Industry ◽

Environmental Control ◽

Environmentally Friendly ◽

Important Influence ◽

Industry Data ◽

Control Variables ◽

Consumption Structure

The food-related industries important influence on the environment and the factors which caused food-related industriesenvironmental pollution was investigated by using the food-related industry data. The results showed that the variables measuring the quantities and structures of food consumption have an important influence on carbon dioxides discharge. In addition, the scale of economics and environmental control variables have the biggest influence. We can lead peoples food consumption structure to the environmentally friendly structure and strengthen the environmental control, then control the environmental pollution of the food industry effectively.

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96/04332 Consequence of the Kizel Coalfield acid mine water disposal into karst cavities

Fuel and Energy Abstracts ◽

10.1016/0140-6701(96)82605-1 ◽

1996 ◽

Vol 37 (4) ◽

pp. 299

Keyword(s):

Mine Water ◽

Acid Mine Water ◽

Acid Mine ◽

Water Disposal

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Molecular characterization of uranium(VI) sorption complexes on iron(III)-rich acid mine water colloids

Geochimica et Cosmochimica Acta ◽

10.1016/j.gca.2006.08.031 ◽

2006 ◽

Vol 70 (22) ◽

pp. 5469-5487 ◽

Cited By ~ 66

Author(s):

Kai-Uwe Ulrich ◽

André Rossberg ◽

Harald Foerstendorf ◽

Harald Zänker ◽

Andreas C. Scheinost

Keyword(s):

Molecular Characterization ◽

Mine Water ◽

Acid Mine Water ◽

Acid Mine

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Hydrogeochemical Evolution and Control Mechanism of Underground Multiaquifer System in Coal Mine Area

Geofluids ◽

10.1155/2020/8820650 ◽

2020 ◽

Vol 2020 ◽

pp. 1-15

Author(s):

Qiding Ju ◽

Yu Liu ◽

Youbiao Hu ◽

Yuquan Wang ◽

Qimeng Liu ◽

...

Keyword(s):

Cation Exchange ◽

Mine Water ◽

Control Mechanism ◽

Water Inrush ◽

Pyrite Oxidation ◽

Mining Area ◽

Carbonate Dissolution ◽

Mining Activities ◽

Hydrogeochemical Evolution ◽

And Control

Mining activities interfere into the natural groundwater chemical environment, which may lead to hydrogeochemical changes of aquifers and mine water inrush disasters. The study of hydrogeochemical evolution processes of underground aquifers is helpful to the prevention and control of mine water inrush. The results show that the study area is mainly impacted by four hydrogeochemical processes: dissolution, cation exchange, desulfurization and reduction, and pyrite oxidation. The Cenozoic aquifers are dominated by carbonate dissolution and desulfurization. The Permian aquifers are impacted mainly by cation exchange and sulfate dissolution, followed by pyrite oxidation. The Carboniferous aquifers are mainly impacted by dissolving sulfate, followed by pyrite oxidation and cation exchange. The hydrogeochemical evolution of the aquifers was controlled by mining activities and tectonic changes, and a certain regularity in space. For the Cenozoic aquifers, sulfate dissolution and cation exchange increase from west to east, and desulfurization weakens. For the Permian aquifers, cation exchange and sulfate dissolution are stronger near synclines and faults, pyrite oxidation is enhanced, and desulfurization decreases from the middle to the east of the mining area. For the Carboniferous aquifers, there is a higher dissolution of rock salt, pyrite oxidation, and cation exchange from west to east, and the desulfurization effect weakens.

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