The application of wood ash as a reagent in acid mine drainage treatment

Heviánková, Silvie; Bestová, Iva; Kyncl, Miroslav

doi:10.1016/j.mineng.2013.10.032

Cited by 38 publications

(13 citation statements)

References 3 publications

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“…The pH for the two soils tested was different between the ash concentrations applied, and all treatments Journal of Agricultural Studies ISSN 2166-0379 2020 showed a pH difference at 28 and 56 days (Table 3). Due to its high contents of oxides and hydroxides, wood ash has alkaline properties and is often used as an acidity corrective agent in acidic soils (Heviá nková et al, 2014;Neina & Dowuona, 2013). Thus, the increase of soil pH caused by ash application represents toxicity to soil organisms because, at pH above 7, there is already inhibition in the reproduction of some soil organisms (Greenslade & Vaughan, 2003).…”

Section: Discussionmentioning

confidence: 99%

Ecotoxicological Evaluation of Forest Biomass Ash on Springtails and Earthworms in Subtropical Soils of Brazil

Ogliari¹,

Zortéa²,

Maccari³

et al. 2020

JAS

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The forest biomass ash used in agriculture as fertilizer has characteristics that can negatively affect the terrestrial environment. This study aimed to evaluate the effect of the application of eucalyptus forest biomass ash on springtails and earthworms in subtropical soils through ecotoxicological tests. The subtropical soils Oxisol and Entisol were used for the ecotoxicological tests of survival and reproduction of springtails (Folsomia candida) and earthworms (Eisenia andrei). The concentrations of forest biomass ash were 0, 5 10 and 20 t ha -1 , based on the recommendation of the application of plant ash as fertilizer. The ecotoxicological results obtained in Oxisol demonstrate that earthworms and springtails are not affected by the presence of ash. In Entisol, the results of sensitivity of the organisms were more evident, and effects were observed from the dose of 5 t ha -1 for springtails with estimated LC 50 of 15.68 t ha -1 (CI: not calculated) and EC 50 of 7.36 t ha -1 (CI: 7.11-7.62 t ha -1 ). Earthworms were affected from 10 t ha -1 , with an estimated EC 50 of 11.97 t ha -1 (CI: 9.49-14.46 t ha -1 ). Application of forest biomass ash in the soil negatively affects springtails and earthworms, but the magnitude of the effects is mainly related to characteristics of the soil, amount applied and sensitivity of the species; negative effects of ash application are directly related to the change in soil pH.

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Section: Discussionmentioning

confidence: 99%

Ecotoxicological Evaluation of Forest Biomass Ash on Springtails and Earthworms in Subtropical Soils of Brazil

Ogliari¹,

Zortéa²,

Maccari³

et al. 2020

JAS

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“…Wood ash from combusted deciduous and coniferous trees was tested as a reagent to treat AMD from opencast mining of brown coal (Heviankova et al, 2014).…”

Section: Calculated Distribution Coefficients (Kd) Showed That Bothmentioning

confidence: 99%

Mine Drainage and Oil Sand Water

Wei

Wolfe

2015

Water Environment Research

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Mine drainage from the mining of mineral resources (coal, metals, oil sand, or industrial minerals) remains as a persistent environmental problem. This review summarizes the scientific literature published in 2014 on the technical issues related to mine drainage or mine water in active and abandoned coal/hard rock mining sites or waste spoil piles. Also included in this review is the water from oil sand operations. This review is divided into the four sections: 1) mine drainage characterization, 2) prediction and environmental impact, 3) treatment technologies, 4) oil sand water. Many papers presented in this review address more than one aspect and different sections should not be regarded as being mutuallyexclusive or all-inclusive.

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“…2FeS2 + 7O2 + 2H2O → 2Fe 2+ + 4SO4 2-+ 4H + [2] AMD can be treated by two methods, there are passive and active treatments 9) . Commonly, passive treatment uses biological and certain not reactive chemical materials in treating AMD such as goat dung, cow dung, spent coffee ground (SCG), limestone, dolomite, etc.…”

Section: Introductionmentioning

confidence: 99%

“…No.1 (2019) ISSN 2289-7070 / eISSN 2462-2451(8)(9)(10)(11)(12)(13)(14) http://ojs.upsi.edu.my/index.php/EJSMT/index Jar test (a) before and (b) after reaction between AMD and hydrated lime RESULTS pH of calcium and magnesium hydroxides after reaction with amd pH values after reaction with both materials were decreased as shown inFigures 2 and 3, respectively. FromFigure 2showed that after 5 min reaction, the pH values had increased from 2.87 ± 0.01 to 3.29 ± 0.01, 4.21 ± 0.01, 5.39 ± 0.01, 9.01 ± 0.01 and 11.34 ± 0.01 by using 0.2, 0.4, 0.6, 0.8 and 1.0 g, respectively.…”

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The Use of Calcium and Magnesium Hydroxides in Acid Mine Drainage Treatment

Sulaiman

Othman

Ibrahim³

et al. 2019

EJSMT

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Reagent grade of calcium and magnesium hydroxides were used in this study to treat acid mine drainage (AMD) sample. AMD sample was collected from a tin tailing pond that located in Pengkalan Hulu, Perak which as pH around 2.87 ± 0.01. pH values had increased after treated with calcium hydroxide (Ca(OH)2) and magnesium hydroxide (Mg(OH)2), respectively. The maximum pH values obtained was 11.35 ± 0.01 by using 1.0 g of Ca(OH)2 at interval time 5 min. For Mg(OH)2, the highest pH value can be obtained was 7.22 ± 0.01 by using 1.0 g at interval time 30 min. The concentration of heavy metals such as aluminum, copper, iron, manganese, nickel and zinc were reduced after reaction with both materials. For examples aluminum concentration was reduced from 110.33 mg/L to 2.80 mg/L and 0.01 mg/L by using 1.0 g of Ca(OH)2 and Mg(OH)2, respectively.

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The application of wood ash as a reagent in acid mine drainage treatment

Cited by 38 publications

References 3 publications

Ecotoxicological Evaluation of Forest Biomass Ash on Springtails and Earthworms in Subtropical Soils of Brazil

Ecotoxicological Evaluation of Forest Biomass Ash on Springtails and Earthworms in Subtropical Soils of Brazil

Mine Drainage and Oil Sand Water

The Use of Calcium and Magnesium Hydroxides in Acid Mine Drainage Treatment

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