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Coulton, R.; Bullen, C.; Hallett, C. |
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Title |
The design and optimisation of active mine water treatment plants |
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2003 |
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Land Contam. Reclam. |
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11 |
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2 |
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273-280 |
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sludge mine water treatment mine water active treatment precipitation iron manganese high density sludge sulphide Groundwater problems and environmental effects Pollution and waste management non radioactive manganese sulfide pollutant removal iron water treatment mine drainage |
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Abstract |
This paper provides a 'state of the art' overview of active mine water treatment. The paper discusses the process and reagent selection options commonly available to the designer of an active mine water treatment plant. Comparisons are made between each of these options, based on technical and financial criteria. The various different treatment technologies available are reviewed and comparisons made between conventional precipitation (using hydroxides, sulphides and carbonates), high density sludge processes and super-saturation precipitation. The selection of reagents (quick lime, slaked lime, sodium hydroxide, sodium carbonate, magnesium hydroxide, and proprietary chemicals) is considered and a comparison made on the basis of reagent cost, ease of use, final effluent quality and sludge settling criteria. The choice of oxidising agent (air, pure oxygen, peroxide, etc.) for conversion of ferrous to ferric iron is also considered. Whole life costs comparisons (capital, operational and decommissioning) are made between conventional hydroxide precipitation and the high density sludge process, based on the actual treatment requirements for four different mine waters. |
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R. Coulton, Unipure Europe Ltd., Wonastow Road, Monmouth NP25 5JA, United Kingdom |
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0967-0513 |
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The design and optimisation of active mine water treatment plants; 2530436; United-Kingdom 4; Geobase |
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CBU @ c.wolke @ 17513 |
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59 |
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Juby, G.J.G. |
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Title |
Desalination of calcium sulphate scaling mine water: Design and operation of the SPARRO process |
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Journal Article |
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Year |
1996 |
Publication |
Water Sa |
Abbreviated Journal |
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22 |
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2 |
Pages |
161-172 |
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Keywords |
mine water treatment |
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Abstract |
The South African mining industry discharges relatively small quantities of mine service water to the environment, but these effluents contribute substantially to the salt load of the receiving waters. The poor quality of service water also has significant cost implications on the mining operations. Of the two main types of mine service water encountered in the gold mining industry, the so-called calcium sulphate scaling types is found in the majority of cases. Preliminary testwork on this type of water using membrane desalination processes revealed that only the seeded reverse osmosis type of process showed promise. To overcome certain process problems and high operating costs with this system, a novel membrane desalination technique incorporating seeded technology, called the SPARRO (slurry precipitation and recycle reverse osmosis) process, was developed. The novel features of the new process included; a lower linear slurry velocity in the membrane tubes, a lower seed slurry concentration, a dual pumping arrangement to a tapered membrane stack, a smaller reactor and a modified seed crystal and brine blow-down system. Evaluation of the SPARRO process and its novel features, over a five-year period, confirmed its technical viability for desalinating calcium sulphate-scaling mine water. The electrical power consumption of the process was approximately half that of previous designs, significantly improving its efficiency. Membrane performance was evaluated and was generally unsatisfactory with both fouling and hydrolysis dominating at times, although operating conditions for the membranes were not always ideal. The precise cause(s) for the membrane degradation was not established, but a mechanism for fouling (based upon the presence of turbidity in the mine water) and a hypothesis fora possible cause of hydrolysis (alluding to the presence of radionuclides in the mine water) were proposed. Product water from the SPARRO process has an estimated gross unit cost (including capital costs) of 383 c/m(3) (1994). |
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Desalination of calcium sulphate scaling mine water: Design and operation of the SPARRO process; Wos:A1996uh88100009; Times Cited: 5; ISI Web of Science |
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CBU @ c.wolke @ 17168 |
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86 |
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Karl, D.J.; Rolsten, R.F.; Carmody, G.A.; Karl, M.E. |
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Title |
Treatment of Acid-mine Drainage Water with Alkaline By-products and Lime Blends |
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Journal Article |
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1983 |
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Ohio J. Sci. |
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83 |
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2 |
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36 |
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mine water treatment |
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0030-0950 |
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Treatment of Acid-mine Drainage Water with Alkaline By-products and Lime Blends; Isi:A1983qk50900121; AMD ISI | Wolkersdorfer |
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Call Number |
CBU @ c.wolke @ 9720 |
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94 |
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Author |
Bosman, D.J. |
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Title |
Lime Treatment Of Acid-Mine Water And Associated Solids Liquid Separation |
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Year |
1983 |
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Water Sci. Technol. |
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15 |
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2 |
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71-84 |
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mine water treatment |
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Lime Treatment Of Acid-Mine Water And Associated Solids Liquid Separation; Wos:A1983qg97300005; Times Cited: 7; ISI Web of Science |
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CBU @ c.wolke @ 14794 |
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95 |
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Sastri, V.S. |
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Title |
Performance Of Some Reverse-Osmosis Membranes And Their Application In Separation Of Metals In Acid Mine-Water |
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1976 |
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Separation Science |
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11 |
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2 |
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133-146 |
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mine water treatment |
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Performance Of Some Reverse-Osmosis Membranes And Their Application In Separation Of Metals In Acid Mine-Water; Wos:A1976bt15300002; Times Cited: 10; ISI Web of Science |
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CBU @ c.wolke @ 9247 |
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98 |
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