Application of Pb-Zn tailings for surface paste disposal: geotechnical and geochemical observations

Başçetin, Ataç; Tüylü, Serkan

doi:10.1080/17480930.2017.1282411

Cited by 13 publications

(3 citation statements)

References 6 publications

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“…DSDT schemes are deemed to be a more advanced technology with higher performance with respect to slope stability, seismic resistance, storage capacity usage and waste water recycling, shorter closure and reclamation cycles [44]. Based on the fact that the remaining capacity of the TSF was only 10.9 million m 3 , which could only be used for 3.68 years with continuation of the CSDT scheme, the DSDT scheme was then preferable, considering its smaller capacity usage.…”

Section: Application Of the Lca Results In The Case Studymentioning

confidence: 99%

Comparative Life Cycle Assessment of Conventional and Dry Stack Tailings Disposal Schemes: A Case Study in Northern China

et al. 2022

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Alternative tailings disposal technologies can be effective solutions to mining waste safety and environmental problems. The current decision-making processes for tailings disposal schemes lack consideration of environmental impacts. Based on a case study of an open-pit iron mine in northern China, this study adopted the life cycle assessment (LCA) method to compare the environmental impacts of three tailings disposal schemes of conventional slurry disposal technology (CSDT), dry stack disposal technology (DSDT) by belt conveyance and DSDT by truck transport. The results indicated that (1) the environmental impacts of the CSDT scheme were lowest under the premise that water consumption was ignored; (2) the environmental impacts of the DSDT scheme by belt conveyance mainly originated from its transport process, indicating that the tailings storage facilities (TSFs) site planning could be crucial in design decision making; (3) the environmental impacts of the DSDT scheme by truck transport mainly originated from the energy consumption of dry stacking equipment; and (4) the DSDT scheme by truck transport was eventually found to be preferable and implemented in the case study, after comprehensively considering the LCA results, TSF safety and remaining capacity, and social and policy uncertainties. It is therefore recommended to conduct LCA of environmental impacts in the decision-making process for the sustainable design of TSFs.

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Section: Application Of the Lca Results In The Case Studymentioning

confidence: 99%

Comparative Life Cycle Assessment of Conventional and Dry Stack Tailings Disposal Schemes: A Case Study in Northern China

et al. 2022

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“…To mitigate some of the problems related to tailing dam construction and their failures, surface paste disposal (SPD) techniques involving dewatering of the tailings to prepare stacks of dried tailings has also been pursued [18,19]. While they offer several advantages including water recovery, they introduce additional engineering challenges and costs, such as dust generation, waste liquefaction, control of rheological parameters for paste transportation [2].…”

Section: Introductionmentioning

confidence: 99%

Exploring the Potential for Utilization of Medium and Highly Sulfidic Mine Tailings in Construction Materials: A Review

et al. 2021

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Medium and highly sulfidic tailings are high-volume wastes that can lead to severe environmental damage if not properly managed. Due to the high content of sulfide minerals, these tailings can undergo weathering if put in contact with oxygen and water, generating acid mine drainage (AMD). The moderate-to-high sulfide content is also an important technical limitation for their implementation in the production of construction materials. This paper reviews the use of sulfidic tailings as raw material in construction products, with a focus on cement, concrete, and ceramics. When used as aggregates in concrete, this can lead to concrete degradation by internal sulfate attack. In building ceramics, their implementation without prior treatment is undesirable due to the formation of black reduction core, efflorescence, SOx emissions, and their associated costs. Moreover, their intrinsic low reactivity represents a barrier for their use as supplementary cementitious materials (SCMs) and as precursors for alkali-activated materials (AAMs). Nevertheless, the production of calcium sulfoaluminate (CSA) cement can be a suitable path for the valorization of medium and highly sulfidic tailings. Otherwise difficult to upcycle, sulfidic tailings could be used in the clinker raw meal as an alternative raw material. Not only the SO3 and SiO2-rich bulk material is incorporated into reactive clinker phases, but also some minor constituents in the tailings may contribute to the production of such low-CO2 cements at lower temperatures. Nevertheless, this valorization route remains poorly explored and demands further research.

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“…At the same time, cement binder can be added to the surface paste material when necessary to increase durability and stability and reduce the risk of heavy metal mobilization with acid mine drainage (AMD). If cement or another binder is going to be used in the paste material mixture, the amount of binder (cement) by solid weight is desired to be 2% in terms of cost and being able to store more tailings (Benzaazoua et al 2004;Deschamps et al 2011;Bascetin and Tuylu 2017;Bascetin et al 2017a, b).…”

Section: Introductionmentioning

confidence: 99%

Laboratory Studies to Examine the Effects of Adding Cement to Various Layers of a Surface Paste Tailings Storage

Tüylü

Başçetin

Adigüzel

2018

Proceedings of the 18th Symposium on Environmental Issues and Waste Management in Energy and Mineral Production

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Application of Pb-Zn tailings for surface paste disposal: geotechnical and geochemical observations

Cited by 13 publications

References 6 publications

Comparative Life Cycle Assessment of Conventional and Dry Stack Tailings Disposal Schemes: A Case Study in Northern China

Comparative Life Cycle Assessment of Conventional and Dry Stack Tailings Disposal Schemes: A Case Study in Northern China

Exploring the Potential for Utilization of Medium and Highly Sulfidic Mine Tailings in Construction Materials: A Review

Laboratory Studies to Examine the Effects of Adding Cement to Various Layers of a Surface Paste Tailings Storage

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