NDLI: An Evaluation of Using Various Admixtures of Green Liquor Dregs, a Residual Product, as a Sealing Layer on Reactive Mine Tailings

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Mine Water and the Environment : Volume 36

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Accumulation of Arsenic and Copper by Bryophytes Growing in an Aquatic Environment near Copper Mine Tailings

Biodegradation of Biosolids Under Aerobic Conditions: Implications for Cover Materials for Sulfide Mine Tailings Remediation

An Evaluation of Using Various Admixtures of Green Liquor Dregs, a Residual Product, as a Sealing Layer on Reactive Mine Tailings

Geothermal Water at a Coal Mine: From Risk to Resource

Reduction of Cd, Cu, Ni, and Pb Mobility by Active Si in a Laboratory Study

Use of Electrocoagulation with Aluminum Electrodes to Reduce Hardness in Tunisian Phosphate Mining Process Water

Evaluation of pH Testing Methods for Sulfidic Mine Waste

The Relationship Between Mineral Content and Flocculant Characteristics for Slurry Waste Water Recycling at Marble Processing Plants

The Effects of Caving of a Coal Mine’s Immediate Roof on Floor Strata Failure and Water Inrush

Multiple Modeling Approach for the Aquatic Effects Assessment of a Proposed Northern Diamond Mine Development

Predictive Reactive Transport Modeling at a Proposed Uranium In Situ Recovery Site with a General Data Collection Guide

Detecting the Source of Contaminant Zones Down-Gradient of the Alborz Sharghi Coal Washing Plant Using Geo-electrical Methods, Northeastern Iran

Improvements in Mero River Basin Water Supply Regulation Through Integration of a Mining Pit Lake as a Water Supply Source

Optimization of Water Pumping and Injection for Underground Coal Gasification in the Meiguiying Mine, China

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An Evaluation of Using Various Admixtures of Green Liquor Dregs, a Residual Product, as a Sealing Layer on Reactive Mine Tailings

Content Provider	Springer Nature Link
Author	Mäkitalo, Maria Stenman, David Ikumapayi, Fatai Maurice, Christian Öhlander, Björn
Copyright Year	2015
Abstract	Green liquor dregs (GLD), a residual product from sulfate paper mills, was blended with tailings, fly ash, and bark sludge with the aim of improving the material’s physical properties so that it could function as a sealing layer in dry covers on sulfidic mine waste. Geotechnical and geochemical investigations, including weathering cell tests, were carried out on GLD with admixtures to assess their effectiveness. Due to its alkaline character, GLD was shown to have the potential to improve leachate quality by decreasing metal mobility when blended with tailings. The admixtures showed favorable sealing layer properties such as high water retention capacity and low hydraulic conductivity. However, caution must be exercised when the dregs are blended with tailings containing large amounts of As and Mo, since increased leaching of these elements may be expected.Grünlaugenschlamm (GLD), ein Abprodukt der Papierherstellung nach dem Sulfatverfahren, wurde mit Tailings, Flugasche und Rindenschlamm mit dem Ziel gemischt, dessen physikalische Eigenschaften zu verbessern, um ihn als Dichtschichtmaterial beim Bau von Abdecksystemen für sulfidische Bergbaurückstände verwenden zu können. Hierzu wurden geotechnische und geochemische Untersuchungen, darunter ein spezieller Labor-Elutionstest, an Rezepturen von GLD mit verschiedenen Zusatzstoffen durchführt. Wird GLD mit Tailings verschnitten, ist er aufgrund seiner Alkalität grundsätzlich geeignet, die Sickerwasserbeschaffenheiten infolge verringerter Metallmobilitäten zu verbessern. Die untersuchten Rezepturen wiesen positive Dichtschichteigenschaften auf, so ein hohes Wasserrückhaltevermögen und eine geringe hydraulische Durchlässigkeit. Allerdings ist Vorsicht geboten, wenn GLD mit Tailings verschnitten wird, die hohe Gehalte an As und Mo aufweisen, da es hierdurch zu einer Mobilitätserhöhung dieser Elemente kommen kann.El licor verde residual (GLD), un producto residual en las fábricas de papel por el método sulfato, fue mezclado con colas, cenizas volátiles y lodo de cortezas con el objetivo de mejorar las propiedades físicas del material para ser usado como una capa de sellado en cobertores secos sobre residuos de una mina de sulfuros. Investigaciones geotécnicas y geoquímicas, incluyendo los test de células de desgaste, fueron realizadas con GLD y diferentes agregados a fin de relevar su efectividad. Debido a su carácter alcalino, GLD mostró potencial para mejorar la calidad del lixiviado disminuyendo la movilidad de los metales cuando se mezcló con las colas. Los agregados mostraron propiedades favorables para ser usados como capas sellantes con una alta capacidad de retención de agua y baja conductividad hidráulica. Sin embargo, deben ser observadas ciertas precauciones cuando los residuos son mezclados con colas que contienen altas cantidades de As y Mo ya que puede esperarse un incremento de la lixiviación de estos elementos.绿液渣(GLD)是硫酸盐造纸厂的固体废物。本文将绿液渣与尾矿、粉煤灰和树皮泥混合,旨在提高混合材料的物理性能,以作含硫化物尾矿堆的保护盖层。通过绿液渣(GLD)及其混合物的岩土力学试验、地球化学试验(包括模拟风化箱试验)评价其作为盖层材料的阻渗、防氧化效率。绿液渣呈碱性,与尾矿混合后能降低尾矿金属离子活性,减少滤出液离子含量,提高滤出液质量。绿液渣混合物表现出了高持水能力和低渗透性的良好盖层特性。但是,应当注意,当绿液渣与含有大量砷和钼的尾矿混合时,这些元素溶出量也会增加。
Starting Page	283
Ending Page	293
Page Count	11
File Format	PDF
ISSN	10259112
Journal	Mine Water and the Environment
Volume Number	35
Issue Number	3
e-ISSN	16161068
Language	Chinese
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-05-03
Publisher Institution	International Mine Water Association (IMWA)
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Acid mine drainage Remediation Humidity cell Sulfide oxidation Geology Water Quality/Water Pollution Hydrogeology Mineral Resources Ecotoxicology Industrial Pollution Prevention
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology Geotechnical Engineering and Engineering Geology

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Improving Properties of Sealing Layers Made of Till by Adding Green Liquor Dregs to Reduce Oxidation of Sulfidic Mine Waste

Biodegradation of Biosolids Under Aerobic Conditions: Implications for Cover Materials for Sulfide Mine Tailings Remediation

ASTM Normalized Humidity Cell Kinetic Test: Protocol Improvements for Optimal Sulfide Tailings Reactivity

A novel method for reducing acid mine drainage using green liquor dregs

Characterization of Green Liquor Dregs, Potentially Useful for Prevention of the Formation of Acid Rock Drainage

Metal Mobilization in Tailings Covered with Alkaline Residue Products: Results from a Leaching Test Using Fly Ash, Green Liquor Dregs, and Lime Mud

Tailings Mineralogy and Geochemistry at the Abandoned Haveri Au–Cu Mine, SW Finland

Tailings Weathering and Arsenic Mobility at the Abandoned Zgounder Silver Mine, Morocco

Effect of the alkaline industrial residues fly ash, green liquor dregs, and lime mud on mine tailings oxidation when used as covering material

An Evaluation of Using Various Admixtures of Green Liquor Dregs, a Residual Product, as a Sealing Layer on Reactive Mine Tailings

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Biodegradation of Biosolids Under Aerobic Conditions: Implications for Cover Materials for Sulfide Mine Tailings Remediation

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An Evaluation of Using Various Admixtures of Green Liquor Dregs, a Residual Product, as a Sealing Layer on Reactive Mine Tailings