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News Displaying items by tag: government

Displaying items by tag: government

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Surat becomes first city in India with a steel slag road

14 April 2022

India: The first steel slag road in India has been built in Surat, Gujarat. The 1.2km road is located at Hazira Port, according to the Times of India newspaper. It was constructed by using steel slag aggregate in place of natural aggregate. The higher strength of the material has also allowed for the thickness of the road to be reduced by 30%. Around 100,000t of steel slag was used. The joint project was a collaboration between the Council of Scientific and Industrial Research, the Central Road Research Institute, the Union Ministry of Steel, government think-tank NITI Ayog and ArcelorMtttal-Nippon Steel.

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Montana Environmental Trust Group secures transport for 2Mt of slag from East Helena slag heap for export

13 December 2021

US: Montana Environmental Trust Group says that it has awarded a contract for the haulage of 2Mt of zinc slag from the East Helena slagheap in Montanato New York-based Metallica Commodities Corporation. Montana Environmental Trust Group said that Metallica Commodities Corporation will convey 20,000t/month of slag by rail to Vancouver for export. The volume corresponds to 14% of a 14Mt supply contract with a South Korea-based zinc smelting company.

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Vietnam government encourages use of slag in cement production

17 May 2021

Vietnam: The government has encouraged cement producers to increase their uptake of waste products, including slag, in cement production. The Viet Nam News newspaper has reported that the government has asked the Ministry of Construction and related agencies to complete the formulation of technical standards, regulations and instructions in relation to the use of slag as well as researching new applications for it. The Ministry of Industry and Trade has also started inspecting storage sites to ensure that it doesn’t exceed two years worth of production. The government initiative has been made in response to rising stockpiles of slag, ash and gypsum.

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US Department of Energy makes US$1.5m grant to research into reuse of steel industry by-products

23 February 2021

US: The US Department of Energy has awarded a grant of US$1.5m to a combined industry and academic team led by Cornell University’s School of Civil and Environmental Engineering. The team will research uses of slag and other waste products from steel production. The study aims to investigate the overall material efficiency of steel production in order to reduce waste. It will explore several avenues, including the use of recovered silica for heavy metals capture at industrial plants and the synthesis of calcium carbonate from slag for use in steel production. Additionally, the team hopes to produce useable iron oxide from the by-products.

Assistant professor Greeshma Gadikota said, “This exciting project directly addresses our societal mission of meeting our resource needs in an environmentally sustainable manner. Iron and steel use is ubiquitous in our infrastructure.” She added that the study is “A unique opportunity to engage and train our students in developing innovative technologies that are central to our ability to live.” The study’s title is ‘Integrated reuse and co-utilisation of slag, sludge and dust with inherent heavy metal capture and nanoscale calcium carbonate production as an enhanced fluxing agent in steel plants.’

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Russian Ministry of Energy launches slag and ash roadmap

03 February 2021

Russia: The Ministry of Energy has launched its roadmap for the use of slag and ash by the cement industry and in road building. Soyuztsement has reported that the roadmap lists pilot projects for the products’ use. Currently, 5 – 7% of ash and slag waste (ASW) is used. Under its Comprehensive Plan to Increase the Utilisation of Solid Fuel Combustion Products bill, published in mid-2020, the ministry plans to increase the ASW utilisation rate across Russia to 50% by 2035. This amount could cut 6.2Mt/yr of the cement industry’s direct CO2 emissions, corresponding to under 1% of its emissions in 2020. Additionally, it would lead to the production of lighter and reduce the thermal conductivity of concrete.

The bill is due for submission before the Russian parliament in April 2021, followed by a second bill to provide for incentives to slag and ash producers in September 2021.

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Walan granted permit to build slag-grinding plant in Delaware

22 August 2019

US: Shawn M Garvin, secretary of the Department of Natural Resources and Environmental Control (DNREC), has issued a Secretary’s Order granting an air quality construction permit for Walan Specialty Construction Products to build a slag grinding plant at Wilmington in Delaware. Walan, also known locally as Penn Mag, is required to use best available control technology (BACT) to control particulate emissions from the drying and grinding operations and to limit truck activity at the site to paved surfaces. The permit has approved a throughput limit of 150,000t/yr of slag, a reduction of 43% compared to the original application.

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INSEE Cement calls for changes to slag cement limits in Sri Lanka

01 August 2019

Sri Lanka: Nandana Ekanayake, the chief executive officer (CEO) of INSEE Cement, has called for the regulations on blended cement to be relaxed. He said that some of the company’s Chinese contractors had asked for cements with 65% slag but that the current regulations do not allow it, according to Economy Next. The Sri Lanka Standards Institute has a limit of 20% slag content in cement. He added that there were no uniform international standard for slag in construction cement. He made the comments at the launch of the company’s first sustainability report.

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China further tightens rules on scrap metal imports

28 June 2019

China: The Chinese government is set to further restrict imports of metal by-products and scrap in July 2019. The latest rules will control imports of eight types of scrap metal, including copper, aluminium and steel scrap, according to Reuters. Companies that want to continue importing these items will need to apply to the environmental ministry to prove they are in compliance with environmental protection standards. Imports of iron and steel slag were banned at the end of 2018.

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Vallejo Marine Terminal drops appeal against planning block in California

28 May 2019

US: Vallejo Marine Terminal (VMT) has decided not to appeal against the Vallejo City Council’s decision in 2017 to deny it planning permission to build a marine terminal. VMT and Orcem Americas were planning to build a marine terminal and a slag cement grinding plant, according to the Vallejo Times Herald newspaper in Vallejo, California. Orcem Americas have not commented on the situation but the lack of an import terminal may make building a cement plant unviable, although the site does have rail and road links.

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Indonesian government prepares to allow nickel and copper slag for building material production

28 May 2019

Indonesia: Fajar Harry Sampurno, the State-Owned Enterprises (SOE) Ministry's undersecretary for mining, strategic industries and media affairs, says that the Environment and Forestry Ministry will issue rules stating that mineral waste such as slags resulting from processing nickel and copper ores could be used as raw material for the production of bricks, asphalt, concrete and cement. Mineral waste including copper and nickel slags are currently categorised as hazardous and toxic waste (B3), requiring special handling, according to the Jakarta Post newspaper.

Harjanto, the Industry Ministry's metal, machinery, transportation equipment and electronic industries director general, said the volume of nickel slag, which at present totals 20Mt/yr, would increase ‘sharply’ within the next few years when new mineral smelters currently under construction start operating. The government expects the construction of 31 smelters to be completed by 2021. At the end of 2018 27 smelters were operating, of which 17 are nickel smelters.

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