Establishing long-term vegetational cover on acidic mining waste tips by utilising consolidated sewage sludges

1990 ◽  
Vol 9 (1-4) ◽  
pp. 255-267
Author(s):  
B Metcalfe
Keyword(s):  
Mining Waste ◽  
Sewage Sludges

Mine waste reuse and reprocessing: an important step for the implementation of the circular economy in Europe

2021 ◽  
Author(s):  
Françoise Bodénan ◽  
Yannick Ménard ◽  
Patrick d'Hugues
Keyword(s):  
Circular Economy ◽  
Mine Waste ◽  
Construction Materials ◽  
Mining Industry ◽  
Mining Waste ◽  
Management Approach ◽  
Secondary Resources ◽  
Mineral Fraction ◽  
Long Term Treatment

<p>Whereas there are growing needs for mineral resources (metals for the energy and digital transitions<br>and construction materials), the mining industry must produce them from poorer, more<br>heterogeneous and more complex deposits. Therefore, volumes of mine waste produced (including<br>tailings) are also increasing and add up to waste from mining legacy. For example in Europe (x27): 732<br>Mtons of extractive waste are generated per year and more than 1.2 Btons of legacy waste are stored<br>all over the European territory. The localisation (and potential hazards) are well known and covered<br>by the inventories carried out in EU countries under the Mining Waste Directive.<br>At the same time, Europe is implementing the circular economy approach and put a lot of emphasis<br>on the resource efficiency concept. In this context, reprocessing operation to recover both metals and<br>mineral fraction is studied with the objective of combing waste management (reducing final waste<br>storage and long-term impact) and material production from secondary resources.<br>Numerous industrial experiences of reprocessing of mine waste and tailings exist all over the world to<br>recover metals such as copper, gold or critical raw materials - CRM They concern mainly active mine<br>where both primary and secondary resources are considered in profitable operations; for example in<br>Chile, South Africa, Australia. Mineral fraction recovery is often not considered which still leaves the<br>industry with a high volume of residual minerals to store and manage.<br>In addition, legacy mining waste are potentially available for reprocessing. In this case, numerous<br>mining liabilities issues need to be managed. Some of the European legacy mining waste have residual<br>valuable metals that could be recovered but some of them have very low metal contents. In Europe,<br>classical rehabilitation operations – usually at the charge of member states and local authorities – is<br>the priority and concern the reduction of instabilities and impacts to the environment including heap<br>remodelling, covering and water management with long-term treatment. Completing this risk<br>management approach by a circular economy one is a very active R&D subject in EU27.<br>This presentation will give an overview of EU research projects which tackled the legacy mining waste<br>challenge from inventory to process development. Several process flowsheets to recover metals were<br>designed and tested on several case studies with CRM – REE, Co, W, Sb, etc. Initiatives to reuse mineral<br>fraction are also underway and should be ready for commercialisation in the coming years.<br>Resources efficiency concept and the circular economy implementation starts on mining sites. In order<br>to facilitate the implementation of this approach, the technical solutions will need to be included in<br>innovative global initiatives covering also legal (liability management), environmental (Life Cycle<br>Analysis approaches) and social (acceptance) questions.</p>

Effects of long-term soil amendment with sewage sludges on soil humic acid thermal and molecular properties

Chemosphere ◽  
2008 ◽  
Vol 73 (11) ◽  
pp. 1838-1844 ◽  
Author(s):  
José M. Fernández ◽  
William C. Hockaday ◽  
César Plaza ◽  
Alfredo Polo ◽  
Patrick G. Hatcher
Keyword(s):  
Humic Acid ◽  
Soil Amendment ◽  
Molecular Properties ◽  
Sewage Sludges ◽  
Soil Humic Acid

Modelling of Contaminant Release from Mining Waste Deposits

2007 ◽  
Vol 20-21 ◽  
pp. 189-192
Author(s):  
L. Moreno
Keyword(s):  
Drainage Water ◽  
Mining Waste ◽  
Mining Wastes ◽  
Northern Sweden ◽  
Sulphide Minerals ◽  
Waste Rock Dump ◽  
Study Case ◽  
Contaminant Release ◽  
Waste Deposits

The release of contaminants from mining wastes containing sulphide minerals is addressed. The paper shows the application of a methodology, Performance Assessment (PA), to the long-term behaviour of waste deposits. The aim of the paper is to address the different processes that occur in deposits for mining waste. These processes are applied to one study case; drainage water from a waste rock dump at the Aitik mine in northern Sweden.

Factor Analysis of Mining Waste Land Development Based on ISM

2010 ◽  
Vol 113-116 ◽  
pp. 27-32
Author(s):  
Chao Qiang Zhu ◽  
Lin Xiu Wang
Keyword(s):  
Structural Model ◽  
Land Development ◽  
Mineral Resources ◽  
Environmental Values ◽  
Mining Waste ◽  
Natural Landscape ◽  
The Waste Land ◽  
Waste Land ◽  
The Government

The long-term exploitation of mineral resources, not only destroyed the natural landscape such as topography, but also triggered a series of ecological and social problems. This paper analyzed influencing factors and process of mining waste land development based on Interpretative Structural Modeling (ISM), and found a structural model. The results told that the Government played an important role in mining waste land development. The government promotes the mining waste land development by influencing the environmental, economic and infrastructure, and makes the waste land fully reflects its economic, social and environmental values.

The Use of Sewage Sludge in Agriculture

1983 ◽  
Vol 15 (1) ◽  
pp. 195-208 ◽  
Author(s):  
E G Coker
Keyword(s):  
Organic Matter ◽  
Sewage Sludge ◽  
Land Reclamation ◽  
Limiting Factors ◽  
Agricultural Crops ◽  
Nitrogen And Phosphorus ◽  
Sewage Sludges

The whole field of utilisation of sewage sludge for the production of agricultural crops is surveyed. Special attention is given to the development of a long-term strategy for utilisation of sewage sludges as fertilisers for agricultural crops, to the benefits arising from the organic matter, nitrogen, and phosphorus which they contain, to the limiting factors to the use of sewage sludges for this purpose, and to those crops which are most appropriate to use. Consideration is given to the use of sewage sludge in land reclamation.

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