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Author (up) Chen, M.; Li, L.; Grace, J.; Tazaki, K.; Shiraki, K.; Asada, R.; Watanabe, H.
Title Remediation of acid rock drainage by regenerable natural clinoptilolite Type Journal Article
Year 2007 Publication Water, Air, Soil Pollut. Abbreviated Journal
Volume 180 Issue 1-4 Pages 11-27
Keywords mine water treatment
Abstract Clinoptilolite is investigated as a possible regenerable sorbent for acid rock drainage based on its adsorption capacity for Zn, adsorption kinetics, effect of pH, and regeneration performance. Adsorption of Zn ions depends on the initial concentration and pH. Adsorption/Desorption of Zn reached 75% of capacity after 1-2 h. Desorption depended on pH, with an optimum range of 2.5 to 4.0. The rank of desorption effectiveness was EDTAEDTA > NaCl > NaNO3 > NaOAc > NaHCO3 > Na2CO3 > NaOH > CeCa(OH)(2). For cyclic absorption/desorption, adsorption remained satisfactory for six to nine regenerations with EDTA and NaCl, respectively. The crystallinity and morphology of clinoptilolite remained intact following 10 regeneration cycles. Clinoptilolite appears to be promising for ARD leachate treatment, with significant potential advantages relative to current treatment systems.
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ISSN 0049-6979 ISBN Medium
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Notes Mar; Remediation of acid rock drainage by regenerable natural clinoptilolite; Wos:000244030000003; Times Cited: 0; ISI Web of Science Approved no
Call Number CBU @ c.wolke @ 7319 Serial 17
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Author (up) Chung, I.J.
Title Immobilization of arsenic in tailing by using iron and hydrogen peroxide Type Journal Article
Year 2001 Publication Environ. Technol. Abbreviated Journal
Volume 22 Issue 7 Pages 831-835
Keywords mine water treatment
Abstract Under environmental conditions, arsenic (As) reveals anionic behavior and is converted into various forms in accordance with the Eh/pH condition. This causes the difficulty of treating As with other heavy metals in tailing. This study was carried out to develop the immobilization method of arsenic in tailing as ferric arsenate (FeAsO4) using hydrogen peroxide. According to experimental results, the extracted concentrations of arsenic and iron (Fe) from tailing were reduced up to 84% and 93%, respectively. In the experiment using pure Pyrite (FeS2) and As solution, As concentration decreased with an increase of hydrogen peroxide dosage. The experimental results of re-extraction showed that only 10% of As and 20% of Fe were extracted in the case of using hydrogen peroxide. As a result, the long-term stability of this method was clarified.
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Notes Immobilization of arsenic in tailing by using iron and hydrogen peroxide; Wos:000170195000008; Times Cited: 0; ISI Web of Science Approved no
Call Number CBU @ c.wolke @ 17046 Serial 123
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Author (up) Costigan, P.A.
Title The reclamation of acidic colliery spoil .3. Problems associated with the use of high-rates of limestone Type Journal Article
Year 1982 Publication Journal of Applied Ecology Abbreviated Journal
Volume 19 Issue 1 Pages 193-201
Keywords mine water treatment
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Notes The reclamation of acidic colliery spoil .3. Problems associated with the use of high-rates of limestone; Wos:A1982nq52600017; Times Cited: 5; ISI Web of Science Approved no
Call Number CBU @ c.wolke @ 9185 Serial 96
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Author (up) Coulton, R.; Bullen, C.; Hallett, C.
Title The design and optimisation of active mine water treatment plants Type Journal Article
Year 2003 Publication Land Contam. Reclam. Abbreviated Journal
Volume 11 Issue 2 Pages 273-280
Keywords 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
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.
Address R. Coulton, Unipure Europe Ltd., Wonastow Road, Monmouth NP25 5JA, United Kingdom
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ISSN 0967-0513 ISBN Medium
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Notes The design and optimisation of active mine water treatment plants; 2530436; United-Kingdom 4; Geobase Approved no
Call Number CBU @ c.wolke @ 17513 Serial 59
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Author (up) Davison, W.
Title Neutralizing Strategies For Acid Waters – Sodium And Calcium Products Generate Different Acid Neutralizing Capacities Type Journal Article
Year 1988 Publication Water Res Abbreviated Journal
Volume 22 Issue 5 Pages 577-583
Keywords mine water treatment
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Notes Neutralizing Strategies For Acid Waters – Sodium And Calcium Products Generate Different Acid Neutralizing Capacities; Wos:A1988p420900008; Times Cited: 8; ISI Web of Science Approved no
Call Number CBU @ c.wolke @ 9085 Serial 90
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