Current situation and comprehensive utilization of iron ore tailing resources

Zhang, S.; Xue, Xiangxin; Liu, X.; Duan, Peining; Yang, Heng; Jiang, Tongying; Wang, D.; Liu, R.

doi:10.1007/s10913-006-0069-9

Cited by 123 publications

(66 citation statements)

References 3 publications

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“…Das et al 36 utilized iron ore tailings (IOT) as raw material in the production of ceramic tiles. Zhang et al 37 recommended comprehensive utilization of IOT in China. Zhong-Lai et al 38 prepared a cementitious material by compound thermal activation method using IOT as raw material.…”

Section: Non-organic Solid Wastementioning

confidence: 99%

Non-Organic Solid Wastes - Potential Resource for Construction Materials

Reddy¹,

Kumar²,

Ullas³

et al. 2016

Current Science

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Construction industry consumes natural resources in bulk quantities for various products such as bricks/ blocks, mortar, concrete, etc. Indiscriminate exploitation of natural resources to meet the ever-expanding needs of the construction sector is posing serious environmental concerns and resulting in scarcity of natural raw materials. At the same time, a large volume of non-organic solid waste (NOSW) is being generated through various anthropogenic activities. It is challenging to find environmentally safe and economically viable solutions for handling such waste materials. This article discusses the construction industry scenario in India, some estimates of NOSW and strategies for their utilization. Few case studies of R&D work on the possibilities of utilizing NOSW for construction products are illustrated. In particular, the technical feasibility of utilizing construction and demolition (C&D) waste and iron ore tailings (IOT) as raw materials for construction products is highlighted. Experimental results presented here on the properties of mortar and concrete when C&D waste and IOT are used as an alternative to fine aggregate for replacing the scarce river sand are promising, showing immense potential for utilizing NOSW for the manufacture of construction products and materials.Keywords: Aggregates, construction materials, iron ore tailings, solid waste.CONSTRUCTION sector consumes maximum amount of natural resources and energy. Manufacturing of construction products requires raw materials and energy. Majority of the raw materials are mined from the earth. Natural resources are mined indiscriminately for construction purposes, causing environmental problems. Energy is expended for converting the raw materials into useful construction products. In addition, the construction materials and products are hauled over long distances spending fossil fuel energy. There are many instances where laws have been enforced to preserve precious natural resources and even ban mining of sand from the river beds.Raw material extraction, manufacture of materials, transportation and construction cause environmental damage and greenhouse gas (GHG) emissions. Estimates show that more than 40% of the total energy and 30% of the material resources are consumed by the habitat and related infrastructure 1 . Ruuska and Hakkinen 2 estimate that better construction and use of buildings in the European Union would influence 42% of energy consumption and more than 50% of all extracted materials. There is an urgent need for minimizing the mining of raw materials and reducing energy consumption.Annual per capita consumption of construction materials is estimated at 1.8 and 3.6 tonnes in India and the world respectively 3 . Aggregates constitute about 60% of the total materials consumed. For example, in India per capita annual consumption of aggregates is about 1.0 tonne in contrast to about 0.20 tonnes food grains consumption. Consumption of cement has grown by leaps and bounds since the last three decades. A tonne of cement requires 5-6 ton...

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Section: Non-organic Solid Wastementioning

confidence: 99%

Non-Organic Solid Wastes - Potential Resource for Construction Materials

Reddy¹,

Kumar²,

Ullas³

et al. 2016

Current Science

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“…The total amount of the produced tailings equals 10 billion tons, and their annual emission in China has exceeded 1 billion tons since 2009 [1,2]. Safe disposal of mine tailings is one of the major environmental problems in the world.…”

Section: Introductionmentioning

confidence: 99%

Pore Structure Evolution and Its Effect on Strength Development of Sulfate-Containing Cemented Paste Backfill

2017

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Abstract:In this study, the effects of the initial sulfate content on the properties of cemented paste backfill (CPB) made from coarse tailings has been investigated via mercury intrusion porosimetry. The combined effects of the sulfate content and curing time on the total porosity, pore size distribution, and unconfined compressive strength of the produced material were discussed. It was found that the specimens with an initial sulfate content of 5000 and 35,000 ppm exhibited higher unconfined compressive strength, while the resulting fine porous structures characterized by pore radii of 10-400 and 1-10 µm significantly improved the mechanical properties of the CPB. In addition, an increase in the curing time decreased the overall pore volume in the radius range of 1-400 µm but increased the pore volume at pore radii less than 1 µm.

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“…It reduces the volume of waste and, under optimal management, the regional environmental situation can be improved. Use of the proposed operation and management strategies can also compensate for or reduce the cost of production (Zhang et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Iron Ore Waste Classification According to Unep Guidelines (Case Study: Golgohar Mining and Industrial Complex in Sirjan, Iran)

Shahba¹

2017

Appl. Ecol. Env. Res.

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Tehran, 2 Department of Environmental Science, Science and Research Branch, Islamic Azad University, Tehran, 3 Soil Conservation and Watershed Management Research Institute, Tehran, *Corresponding author e-mail: rezaarjmandi@yahoo.com; tel: +98-9-123-274-632 Abstract. Population growth has prompted governments to encourage industrial development in order to improve the welfare of their citizens. This process increases the deposition of human and industrial waste in the environment. The consequences of this have produced a serious need to implement appropriate management strategies in order to reduce and control the effect of the accumulation of such waste. The current study was undertaken to compile information about the status of iron ore waste produced by the Golgohar Mining and Industrial Complex in Sirjan, Iran, in 2015 by observation, field visits, interviews with officials and experts of the unit and the use of questionnaires and technical documentation. The industrial waste was classified using UNEP guidelines and guidelines for proper management of waste have been presented. The results of data analysis regarding the quantity and quality of mining and industrial waste of Golgohar Mining and Industrial Complex sho wed that about 24 million tons of solid industrial waste is produced annually. A large percentage comprises hazardous waste according to UNEP classifications and include rock and soil tailings from processing, dry and wet tailings. These are classified into group E as high volume and low-risk waste and in group A as mining waste containing heavy metals. The presence of heavy metals increases the importance of controlling and managing this waste.

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Current situation and comprehensive utilization of iron ore tailing resources

Cited by 123 publications

References 3 publications

Non-Organic Solid Wastes - Potential Resource for Construction Materials

Non-Organic Solid Wastes - Potential Resource for Construction Materials

Pore Structure Evolution and Its Effect on Strength Development of Sulfate-Containing Cemented Paste Backfill

Iron Ore Waste Classification According to Unep Guidelines (Case Study: Golgohar Mining and Industrial Complex in Sirjan, Iran)

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