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Author |
Turek, M.; Gonet, M. |
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Title |
Nanofiltration in the utilization of coal-mine brines |
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Journal Article |
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1997 |
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Desalination |
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108 |
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1-3 |
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171-177 |
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Entsalzung Entsalzungsanlage Umkehrosmose Membran Kohlenbergwerk Natriumchlorid Abwasser Verdampfung Energieverbrauch Nanofiltration mine water treatment |
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Abstract |
The utilization of saline coal mine waters is considered to be the most adequate method of solving ecological problems caused by this kind of water in Poland. In the case of most concentrated waters, the so-called coalmine brines, the method of concentrating by evaporation in a twelve-stage expansion installation or vapour compression is applied, after which sodium chloride is manufactured. A considerable restriction in the utilization of coal mine brines is the high energy consumption in these methods of evaporation. An obstacle in the application of low energy evaporation processes, e.g. multi-stage flash, is the high concentration of calcium and sulfate ions in the coal mine brines. The present paper deals with the application of nanofiltration in the pretreatment of the brine. The application of nanofiltration membranes with an adequate pore size, including charged membranes, makes it possible to decrease the concentration of divalent ions in the permeate practically without any changes in the concentration of sodium chloride. Then the permeate may be concentrated in a multi-stage evaporation process, e.g. MSF, without any risk of the crystallization of gypsum. A combination of NF and MSF ought to set down the unit costs of the concentration of coal mine brines below those of mere evaporation. |
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0011-9164 |
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Feb; Nanofiltration in the utilization of coal-mine brines; Wos:A1997wk45600023; Times Cited: 1; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/8724.pdf; ISI Web of Science |
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CBU @ c.wolke @ 8724 |
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29 |
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Author |
Dempsey, B.A.; Jeon, B.-H. |
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Title |
Characteristics of sludge produced from passive treatment of mine drainage |
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Journal Article |
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2001 |
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Geochem.-Explor. Environ. Anal. |
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1 |
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1 |
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89-94 |
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acid mine drainage; aerobic environment; anaerobic environment; Appalachian Plateau; Appalachians; carbonate rocks; coagulation; compressibility; decontamination; density; drainage; filtration; geochemistry; Howe Bridge; Jefferson County Pennsylvania; limestone; mining geology; North America; passive systems; Pennsylvania; pH; pollution; ponds; rates; reclamation; sedimentary rocks; settling; sludge; slurries; suspended materials; United States; viscosity; wet packing density; wetlands; zeta-potential 22, Environmental geology |
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In the 1994 paper by Brown, Skousen & Renton it was argued that settleability and wet-packing density were the most important physical characteristics of sludge from treatment of mine drainage. These characteristics plus zeta-potential, intrinsic viscosity, specific resistance to filtration, and coefficient of compressibility were determined for several sludge samples from passive treatment sites and for several sludge samples that were prepared in the laboratory. Sludge from passive systems had high packing density, low intrinsic viscosity, low specific resistance to filtration and low coefficient of compressibility compared to sludge that was produced after addition of NaOH. |
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1467-7873 |
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Feb.; Characteristics of sludge produced from passive treatment of mine drainage; 2002-008382; References: 29; illus. incl. 5 tables United Kingdom (GBR); GeoRef; English |
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CBU @ c.wolke @ 5734 |
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57 |
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Author |
Nakazawa, H. |
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Treatment of acid mine drainage containing iron ions and arsenic for utilization of the sludge |
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2006 |
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Sohn International Symposium Advanced Processing of Metals and Materials, Vol 9 |
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373-381 |
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mine water treatment arsenic biotechnology filtration iron membranes microorganisms mining industry oxidation sludge treatment acid mine drainage arsenic ion sludge treatment Horobetsu mine Hokkaido Japan ferrous iron membrane filter pore size arsenite solutions microbial oxidation As Fe Manufacturing and Production |
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An acid mine drainage in abandoned Horobetsu mine in Hokkaido, Japan, contains arsenic and iron ions; total arsenic ca.10ppm, As(III) ca. 8.5ppm, total iron 379ppm, ferrous iron 266ppm, pH1.8. Arsenic occurs mostly as arsenite (As (III)) or arsenate (As (V)) in natural water. As(III) is more difficult to be remove than As(V), and it is necessary to oxidize As(III) to As(V) for effective removal. 5mL of the mine drainage or its filtrate through the membrane filter (pore size 0.45 mu m) were added to arsenite solutions (pH1.8) with the concentration of 5ppm. After the incubation of 30 days, As(III) was oxidized completely with the addition of the mine drainage while the oxidation did not occur with the addition of filtrate, indicating the microbial oxidation of As(III). In this paper, we have investigated the microbial oxidation of As(III) in acid water below pH2.0. |
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0-87339-642-1 |
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Aug 27-31; Treatment of acid mine drainage containing iron ions and arsenic for utilization of the sludge; Isip:000241817200032; Conference Paper Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 17456 |
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151 |
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Author |
Rees, B.; Bowell, R.; Dey, M.; Williams, K. |
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Title |
Passive treatment; a walk away solution? |
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2001 |
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Mining Environmental Management |
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9 |
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2 |
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7-8 |
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acid mine drainage; acidification; alkalinity; bacteria; bioremediation; buffers; chemical reactions; cost; effluents; ferric iron; ferrous iron; filtration; ground water; hydrolysis; iron; metals; monitoring; oxidation; permeability; pH; pollution; remediation; substrates; sulfate ion; suspended materials; water management; water pollution; water quality; water treatment; wetlands 22, Environmental geology |
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0969-4218 |
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Passive treatment; a walk away solution?; 2001-050826; References: 3; illus. United Kingdom (GBR); GeoRef; English |
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Call Number |
CBU @ c.wolke @ 5722 |
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265 |
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Author |
Janiak, H. |
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Title |
Mine drainage treatment in Polish lignite mining |
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Journal Article |
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1992 |
Publication |
Mine Water Env. |
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11 |
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1 |
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35-44 |
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laboratory scale tests plants bogs biological filters open cut mining mine drainage filtration flocculation radiation particle size suspended solids water treatment water discharge field tests lignite mines poland mining and industrial water water treatment water quality |
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The paper presents volumes and characteristics of water discharged from some Polish lignite open pit mines and discusses methods for its treatment. Results of research work concerned with increase in mine drainage efficiency by using processes of radiation, flocculation and filtration through a set of bog plants, iknown as grass filter are also discussed |
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Mine drainage treatment in Polish lignite mining; WATERLIT: 00526053 1 Abb., 3 Tab.; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17356 |
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342 |
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