| Records |
| Author |
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 |
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| 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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Immobilization of arsenic in tailing by using iron and hydrogen peroxide; Wos:000170195000008; Times Cited: 0; ISI Web of Science |
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| Call Number |
CBU @ c.wolke @ 17046 |
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123 |
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| Author |
Gerth, A.; Kießig, G. |
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Book Whole |
| Year |
2001 |
Publication |
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Pages |
173-180 |
| Keywords |
mining uranium mining passive treatment Saxony mine water treatment |
| Abstract |
Treatment of radioactively-contaminated and metal-laden mine waters and of seepage fiom tailings ponds and waste rock piles is among the key issues facing WISMUT GmbH in their task to remediate the legacy of uranium mining and processing in the Free States of saxony and rhuringia, Federal Republic of Germany. Generally, contaminant loads of feed waters wn aimnisn over time. At a certain level of costs for the removal of one contaminant unit, continued operation of conventional water treatment plants can hardly be justified any longer. As treatment is still required for water protection, there is an urgent need for-the development and implementation of more cost efficient technologies. WISMUT GmbH and BioPlanta GmbH have studied the suitability of helophye species for contaminant removal from mine waters. In a fust step, original waters were used for an in vitro bioassay. The test results allowed for the determination of the effects of biotic and abiotic factors on helophy'tes'tolerancer ange, growth, and uptake capability of radionuclides and metals. Test series were carried out using Phiagmites australis, Carex disticha, Typha latifolia, and Juncus effusus. Relevant cont-aminant components of the mine waters under investigation included uraniunl iron, arsenic, manganese, nickel, and copper. Investigations led to a number of recommendations conceming plant selection for specific water treatment needs. In a second step, based on these results, a constructed wetland was built in l99g as a pilot plant for the treatment of flood waters liom the pöhla-Tellerhäuser mine and went on-line. Relevant constituents of the neutral flood waters include radium, iron, and arsenic. This wetland specifically uses both physico-chemical and microbiological processes as well as contaminant accumulation by helophytes to achieve the treatment objectives. with the pilot plant in operation for three years now, average removal rates achieved are 95 Yo for kon, 86 yo for arsenic, and 75 % for raäium. WISMUT GmbH intends to put a number of other projects of passive/biological mine water treatment into operation before the end of 2001_ |
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Battelle Press |
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(6)5 |
Editor |
Leeson, A. |
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Phytoremediation, wetlands and sediments |
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1-57477-115-9 |
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Passive/Biological Treatment of Waters contaminated by Uranium Mining; 2; VORHANDEN | AMD ISI | Wolkersdorfer; als Datei vorhanden 4 Abb., 4 Tab. |
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CBU @ c.wolke @ 17345 |
Serial |
372 |
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| Author |
Laspidou, C.S. |
| Title |
Constructed wetlands technology and water quality improvement: Recent advances |
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Journal Article |
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2005 |
Publication |
Proceeding of the 9th International Conference on Environmental Science and Technology Vol B – Poster Presentations |
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B503-B508 |
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mine water treatment |
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Today's demands for improved water quality in receiving waters are widespread and require the implementation of systems that are natural, low-cost and minimal-maintenance that could effectively treat polluted discharges. Wetlands are such systems and are recently receiving a lot of attention from scientists, ecologists and engineers, as they are deemed appropriate for reducing the impact of effluent and run-off on receiving waters. Since a large part of natural wetlands have been lost-about 53% of them in the United States from the 1780s to the 1980s-management options for improving receiving water quality, water reclamation and reuse involve the application of constructed wetlands technology. |
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Constructed wetlands technology and water quality improvement: Recent advances; Isip:000237755500082; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 16966 |
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152 |
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| Author |
Wiessner, A. |
| Title |
The treatment of a deposited lignite pyrolysis wastewater by adsorption using activated carbon and activated coke |
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Journal Article |
| Year |
1998 |
Publication |
Colloids and Surfaces a-Physicochemical and Engineering Aspects |
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139 |
Issue |
1 |
Pages |
91-97 |
| Keywords |
mine water treatment |
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To study the functions of activated carbon and activated coke adsorption for the treatment of highly contaminated discolored industrial wastewater with a wide molecular size distribution of organic compounds, the deposited lignite pyrolysis wastewater from a filled open-cast coal mine was used for continuous and discontinuous experiments. |
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The treatment of a deposited lignite pyrolysis wastewater by adsorption using activated carbon and activated coke; Wos:000074411100012; Times Cited: 1; ISI Web of Science |
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CBU @ c.wolke @ 17147 |
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133 |
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| Author |
Banks, S.B. |
| Title |
The UK coal authority minewater-treatment scheme programme: Performance of operational systems |
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Journal Article |
| Year |
2003 |
Publication |
Jciwem |
Abbreviated Journal |
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17 |
Issue |
2 |
Pages |
117-122 |
| Keywords |
mine water treatment |
| Abstract |
This paper summarises the performance of minewater-treatment schemes which are operated under the Coal Authority's National Minewater Treatment Programme. Commonly-used design criteria and performance indicators are briefly discussed, and the performance of wetland systems which are operated by the Coal Authority is reviewed. Most schemes for which data are available remove more than 90% iron, and average area-adjusted iron-removal rates range from 1.5 to 5.5 g Fe/m(2). d. These values, which are based on performance calculations, can be distorted by several factors, including the practice of maximising wetland areas to make best use of available land. Removal rates are limited by influent iron loadings, and area-adjusted iron-removal rates should be used with caution when assessing wetland performance. Sizing criteria for all types of treatment system might be refined if more detailed data become available. |
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0951-7359 |
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May; The UK coal authority minewater-treatment scheme programme: Performance of operational systems; Wos:000183641000009; Times Cited: 1; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10018.pdf; ISI Web of Science |
Approved |
no |
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CBU @ c.wolke @ 17457 |
Serial |
9 |
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