Cement News tagged under: environment

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Decisions, decisions...

14 July 2014, Published under Cement News

Waste heat power generation (WHPG) has become an increasingly attractive option for cement producers seeking to reduce net energy consumption, enhance sustainablity and remain competitive. While evaluating the installation of a WHPG system in terms of energy costs savings is a primary consideration, it is also crucial to ensure the system integrates seamlessly with the cement production process and is adapted to meet the individual characteristics of each plant. By JFE Engineering Corp, Japa...

Go process: sun and cement

30 June 2014, Published under Cement News

In its search to substitute traditional energy sources such as fossil fuels, the cement industry is exploring several alternatives. One such option is the use of concentrated solar thermal (CST) energy in the calcination process to achieve the continuous operation of the cement plant using a hybrid process. By Ricardo S Gonzalez, Cemex Latam Holdings, Colombia. The use of concentrated solar thermal energy is one alternative option to provide the energy required in the calcination p...

Project Slite 75%

03 June 2014, Published under Cement News

Recent years have seen HeidelbergCement’s Slite cement works in Sweden steadily increase its use of alternative fuels to the 40-45 per cent mark. However, HeidelbergCement’s global substitution target of 30 per cent by 2020 has provided Slite with the impetus to raise fuel substitution to an ambitious 75 per cent. By Jan Theulen, HeidelbergCement, Belgium and Per Ole Morken, Slite cement plant, Sweden. The work of Slite’s project team resulted in lifting the plant’s alternative fuel r...

CO2 - a catalyst for change

23 May 2014, Published under Cement News

Cement production in 2014 is expected to surpass 4bnt in 2014, resulting in carbon dioxide emissions by the cement sector of roughly the same level. At the same time, the world is looking for increasing energy supplies and therefore the conversion of CO2 emitted by cement plants into a usable fuel is a compelling option. By David St Angelo, Joule, USA. Converting CO2 from cement plants to fuel: using an ubiquitous waste product to meet one of the world’s key challenges Rather th...

Mercury in Latin America

16 May 2014, Published under Cement News

The signing of the Minamata Convention on Mercury on 10 October 2013 will encourage governments to pass new and more stringent regulations on mercury abatement in the cement industry. One such example is the USA which will see new rules come into effect in 2015. Further south, the mercury issue is moving onto the sustainability agenda of Latin American cement producers. Kline Consulting considers how they can effectively reduce mercury levels in their cement plants. By John Kline & Charles K...

UK: Hanson Cement initiates solar power plant

08 May 2014, Published under Cement News

Lark Energy, working in partnership with Armstrong Energy, has successfully completed and connected a 9MW solar power farm at Hanson Cement’s Ketton works in Rutland. The solar plant has been built on 20ha of former quarry belonging to Hanson Cement. The 38,544 modules will generate enough energy to cover around 10 per cent of the Cement work’s annual consumption. This will not only reduce the company’s carbon emissions but will also contribute to improving the per capita carbon emissions...

MACT rule brings challenges

08 April 2014, Published under Cement News

The US is at the forefront of new legislation to limit mercury emissions and improve air pollutant monitoring. As a result, the cement industry faces a race against time to implement solutions and comply with regulations by September 2015. This article focusses on the challenges of mercury monitoring in cement plants, and emerging technologies that enable successful monitoring and reporting of mercury emissions. By Ravi Narayan, Cemtrex Inc, USA & Richard Hovan, Durag Inc, USA. Recent...

China's new emission limits

12 March 2014, Published under Cement News

The co-processing of wastes in cement kilns could offer a safe option to reduce China’s growing waste management issue. However, the development of standards and guidelines reflecting international practice is key to the sustainable co-processing of such wastes. Recognising its importance, the Chinese Ministry of Environmental Protection recently revised and updated emission standards for co-processing in cement plants. By Da Hai Yan, Chinese Research Academy of Environmental Sciences, China...

Alternative opportunities

05 February 2014, Published under Cement News

Doubling of capacity at the Jebel Ali Sewage Treatment plant in Dubai, UAE, offers domestic cement producers the potential to use excess sludge from the process as an alternative fuel source. The move would not only allow the cement industry to scale down reliance on traditional fuels and,  therefore, reduce GHG emissions but also tackle the problem of how to safely dispose of sewage sludge in an eco-friendly manner. By Tariq Majid Khan Niazi, Jebel Ali Sewage Treatment plant, UAE. Je...

Reducing the carbon footprint

27 January 2014, Published under Cement News

Suez Cement Group of Companies (SCGC) strives to be at the forefront of industrial efforts to reduce CO2 emissions. Having won prestigious awards in recognition of its pioneering work, the Italcementi subsidiary is embarking on two new CDM projects to replace 14 per cent of traditional fuel usage at its Helwan and Kattameya cement plants. It is also set to benefit from a new windfarm that will meet 40 per cent of the group’s energy needs and contribute to Egypt’s renewable energy drive. By S...