Laboratory Evaluation of the Use of Alkaline Phosphate Wastes for the Control of Acidic Mine Drainage

Hakkou, Rachid; Benzaazoua, Mostafa; Bussière, Bruno

doi:10.1007/s10230-009-0081-9

Cited by 71 publications

(42 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…En adoptant la méthode standard test acide-base (ABA) de Sobek et al, (1978) modifiée, le potentiel de neutralisation de la boue de la pâte de sucrerie est de l'ordre de 878.5 kg/t CaCO 3 ; il est plus élevé que celui des déchets des phosphates alcalins qui est de l'ordre de 680 kg/t CaCO 3 (Hakkou et al, 2009) et est cependant inférieur à celui des poussières de four de cimenterie qui est de l'ordre de 910 kg/t CaCO 3 (Nfissi et al, 2014). Ce fort potentiel de neutralisation reflète leur forte alcalinité qui permettra de neutraliser l'acidité des résidus miniers de Kettara.…”

Section: -Résultats Et Discussion 4-1-propriétés Physico-chimiques Eunclassified

“…Directive 019 -MDDEP 2012). De ce fait, plusieurs méthodes d'atténuation peuvent être utilisées pour prévenir la production de DMA dans les parcs à résidus miniers, parmi les quelles le dépôt subaquatique (Aubertin et al, 2002), les recouvrements de type couvertures à effets de barrière capillaire (Dagenais et al, 2003;Bossé, 2013), la désulfuration environnementale (Benzaazoua et Kongolo, 2003 ;Mermillod-Blondin et al, 2005) et l'amendement alcalin qui consiste à mélanger les résidus générateurs de DMA avec des matériaux alcalins afin de limiter l'oxydation des sulfures et de neutraliser l'acidité générée (Hakkou et al,. 2009;González et al, 2012;Nfissi et al, 2014).…”

Section: -Introductionunclassified

See 1 more Smart Citation

Caractérisation Des Boues De Sucrerie Et Des Argiles Pour La Neutralisation Des Résidus Miniers Acides De La Mine De Kettara (Jebilet Centrales, Maroc)

Zerhouni

Alikouss

Saber

et al. 2016

ESJ

View full text Add to dashboard Cite

The minerals in the tailings, subject to the action of water and atmospheric oxygen, can generate Acid Mine Drainage (AMD). The latter is considered the most important environmental issue facing the mining industry. Its environmental impacts include the destruction of the flora and fauna in infected rivers and contamination of groundwater. The abandoned mine site Kettara, located about 32 km northwest of Marrakech (Morocco), chosen as a pilot site for this study, more than 3 million tons of tailings stored at ground level without any concern for their environmental consequences. These solid residues, with high concentrations of heavy metals (As, Pb, Fe, Cu ...), produce leachate very acidic (pH <2.9) may contaminate the water resources of the region. To mitigate the DMA phenomenon in this mining site, different protocols have been proposed using candy sludge (Mud Pulp Sweets: MPS), rich in carbonates from the Moroccan Sugar Company Unit (COSUMAR) and red clays (Clays: CLY) of the city of Safi. Physicochemical characterization and mineralogical of these two materials was performed an provided promising results regarding the effectiveness of the use of alkaline materials in the stabilization of tailings Kettara. European Scientific Journal May 2016 edition vol.12, No.15 ISSN: 1857 -7881 (Print) e -ISSN 1857 322 Indeed, these starting materials are provided with a net neutralizing power which is of the order of 878.5 kg CaCO3 / t for MPS and 299 kg CaCO3 / t for CLY. The valuation of MPS and CLY, as a main component of an alkaline amendment, is likely to significantly reduce the effects of DMA in this semiarid climate mine.

show abstract

Section: -Résultats Et Discussion 4-1-propriétés Physico-chimiques Eunclassified

Section: -Introductionunclassified

Caractérisation Des Boues De Sucrerie Et Des Argiles Pour La Neutralisation Des Résidus Miniers Acides De La Mine De Kettara (Jebilet Centrales, Maroc)

Zerhouni

Alikouss

Saber

et al. 2016

ESJ

View full text Add to dashboard Cite

show abstract

“…The rehabilitation scenario being investigated at the Kettara mine involves using fine alkaline phosphate waste (APW) as both an amendment and a 'store and release' (SR) cover (Hakkou et al 2009). This process will require that all of the Kettara coarse tailings be collected and placed over the old tailings pond.…”

Section: Introductionmentioning

confidence: 99%

Electrical and Seismic Tomography Used to Image the Structure of a Tailings Pond at the Abandoned Kettara Mine, Morocco

Lghoul

Teixidó²,

Peña³

et al. 2012

Mine Water Environ

Self Cite

View full text Add to dashboard Cite

International audienceThe Kettara site (Morocco) is an abandoned pyrrhotite ore mine in a semi-arid environment. The site contains more than 3 million tons of mine waste that were deposited on the surface without concern for environmental consequences. Tailings were stockpiled in a pond, in a dyke, and in piles over an area of approximately 16 ha and have generated acid mine drainage (AMD) for more than 29 years. Geophysical methods have been used at the Kettara mine site to determine the nature of the geological substrate of the tailings pond, the internal structure of the mine wastes, and to investigate the pollution zones associated with sulphide waste dumps. Electrical resistivity tomography (ERT) and seismic refraction data were acquired, processed, and interpreted; the results from ERT and seismic refraction were complementary. A topographical survey of the tailings disposal area was also undertaken to estimate the volume of wastes and quantify the AMD process. Two-dimensional inverse models were used to investigate the geophysical data and indicated alteration zones at depth. It was determined that the material could be classified into three categories: tailings, with low resistivity (5-15 Omega m) and low velocity (500-1,800 m/s); altered, black shales, with intermediate resistivity (20-60 Omega m) and velocity (2,000-3,500 m/s), and; materials with high resistivity and velocity (> 60 Omega m and > 4,000 m/s, respectively), including unaltered shales associated with quartzite seams. The low-resistivity zone generates AMD, which migrates downward through fractures and micro-fractures. The substrate is composed of broken and altered shale, which facilitates AMD infiltration

show abstract

“…Agentes neutralizantes, como cal e calcário, são tradicionalmente utilizados para esse controle (mylona et al, 2000; murta et al, 2008). Atualmente, estudos têm sido realizados na tentativa de inserir subprodutos alcalinos para contenção de geração de acidez (Pérez-lópez et al, 2007;Hakkou et al, 2009). entre os subprodutos usados encontra-se a lama vermelha produzida na indústria de alumínio (doye & duchesne 2003;bertocchi et al, 2006;Paradis et al, 2007).…”

Section: Introductionunclassified

Avaliação em laboratório do uso de sistemas de coberturas alcalinas para prevenção da drenagem ácida de mina

Abreu¹,

Faria²,

Guimarães³

et al. 2012

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

A drenagem ácida de mina (DAM) é um problema ambiental em escala mundial. Ela é proveniente do processo de oxidação química de materiais da mineração que contenham minerais sulfetados expostos a condições atmosféricas com a mediação de bactérias. As águas ácidas geradas nesses ambientes podem comprometer a qualidade dos recursos hídricos. Para tentar conter essa DAM, métodos de prevenção e remediação têm sido aplicados. As coberturas secas têm sido estudadas como alternativa de prevenção, visto que a remediação tem mostrado-se de custo elevado. O objetivo deste trabalho foi avaliar o uso de coberturas alcalinas para controlar a geração de ácido proveniente do estéril da mineração de urânio, U, por meio de sistemas colunas de lixiviação. Para isso, foram estudados sistemas de coberturas que têm como agentes de neutralização a lama vermelha, o calcário e a cal. Amostras de estéril e de água foram coletadas na mina Osamu Utsumi, em Caldas, MG. Foram realizadas análises químicas e mineralógicas do estéril, da cal, do calcário e da lama vermelha. Para os testes cinéticos, foram montadas sete colunas de lixiviação: C1(estéril); C2 (estéril + cobertura de lama vermelha); C3 (estéril + cobertura de calcário); C4 (estéril + cobertura de cal); COB2 (cobertura de lama vermelha); COB3 (cobertura de calcário); e COB4 (cobertura de cal). As amostras lixiviadas foram monitoradas por 100 dias. Os resultados mostraram que a cal e a lama vermelha têm maior potencial neutralizador. No entanto, esses agentes neutralizantes oferecem o inconveniente de introduzir material solúvel no lixiviado. Dessa forma, considerando os parâmetros avaliados, foi demonstrado que o uso de mistura de lama vermelha com estéril do Bota-fora 4 (BF4) pode ser uma alternativa viável para o controle de geração de DAM associada à reciclagem de resíduos industriais alcalinos.

show abstract

Laboratory Evaluation of the Use of Alkaline Phosphate Wastes for the Control of Acidic Mine Drainage

Cited by 71 publications

References 23 publications

Caractérisation Des Boues De Sucrerie Et Des Argiles Pour La Neutralisation Des Résidus Miniers Acides De La Mine De Kettara (Jebilet Centrales, Maroc)

Caractérisation Des Boues De Sucrerie Et Des Argiles Pour La Neutralisation Des Résidus Miniers Acides De La Mine De Kettara (Jebilet Centrales, Maroc)

Electrical and Seismic Tomography Used to Image the Structure of a Tailings Pond at the Abandoned Kettara Mine, Morocco

Avaliação em laboratório do uso de sistemas de coberturas alcalinas para prevenção da drenagem ácida de mina

Contact Info

Product

Resources

About