Cement News tagged under: environment

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A zero waste solution

16 August 2017, Published under Cement News

The development of new alternative fuel (AF) processing and handling technology has enabled cement producers to improve their fuel substitution rates while providing municipal and other authorities with a sustainable, zero-waste option in the disposal of municipal solid wastes (MSWs). By Dirk Lechtenberg, MVW Lechtenberg, Germany. Figure 1: typical process flow for processing MSW into RDF In the early days of alternative fuel (AF) use in the cement industry, well-defined, mainly...

Cooling down refrigerants...in the kiln

21 June 2017, Published under Cement News

The safe disposal of hydrofluorocarbons, present in end-of-service refrigerants, is key in helping to prevent excessive levels of global warming in the future. Cement kilns provide one way of dealing with these harmful substances. Successfully implemented in Japan for over three decades, other Asian countries such as India and Indonesia are now following. By Dr Vincent Aloysius, INSEE Ecocycle Co Ltd, Thailand. Cement kilns provide a safe method to dispose of hydrofluorocarbons ...

Sustainable Primavera

13 June 2017, Published under Cement News

The construction and operation of cement plants carry the potential to have a profound impact on the local environment and communities. However, with a strategic approach that considers a cement producer’s return on social investment, they can be a force for good, bringing mutual benefits for the company and these communities. By Álvaro Lorenz, Votorantim Cimentos, Brazil. In June 2017 Votorantim Cimentos will be celebrating its first year of operation at the 1.2Mta Primavera plant...

Canada's low-hanging fruit

23 May 2017, Published under Cement News

In the run-up to the IEEE-IAS/PCA Cement Industry Technical Conference in Calgary, Canada, Adam Auer discusses the use of low-carbon fuels in the domestic cement industry to meet Canada’s federal and provincial climate change targets. By Adam Auer, Cement Association of Canada, Canada. Over the last decade, Canada’s cement plants have averaged <10 per cent fuel substitution The substitution of traditional fossil fuels – mainly coal and petcoke – with lower carbon alternatives ...

Myanmar’s co-processing potential

15 May 2017, Published under Cement News

With cement demand anticipated to rise over the coming years and production capacity set to soar to more than 20Mta, Myanmar’s cement industry has significant potential for co-processing several types of waste in its kilns. By Dr Kåre Helge Karstensen and Palash Kumar Saha, SINTEF, Norway. Than Taw Myat Group, producers of Double Rhinos cement, recently commissioned its 5000tpd Kyaukse works in Mandalay. The facility is one of Myanmar’s newest dry-process plants One of the fa...

Effective mercury sorbents

12 April 2017, Published under Cement News

Activated carbon sorbent injection has enabled many cement plants to minimise mercury emissions from their operations. To ensure effective mercury control understanding the sorbent properties critical to mercury removal is key. B y John Satterfield, Cabot Norit Activated Carbon, USA. Figure 1: Plant A – fuel Hg content: 25-53ppb R educing mercury emissions by activated carbon sorbent injection (ACI) has been thoroughly demonstrated as a successful strategy at a growing n...

EU: cap on emissions windfall set at 2.2% per year

10 March 2017, Published under Cement News

The European Parliament and the Council (Environment Ministers) agreed on 28 February its negotiating position for the revision of the Emission Trading System (EU ETS), says Cembureau. According to the proposed directive, now due for deliberation in a trilogue of meetings. The cap on emissions will fall by 2.2 per cent a year – the so-called linear reduction factor – until at least 2024. This is expected to push up the cost of allowances and provide an incentive for industries to adopt cle...

Places of discovery

06 March 2017, Published under Cement News

Particular finds of scientific importance can transform the perception of quarries as sites of destruction to places of discovery. From fossils and archeological finds to structural features, such locations can help to provide a positive view of quarrying operations. By Fabio Coletta and Dr Michael Clark, Whitehopleman, UK. Quarries can be viewed as sites of important discoveries rather than destruction Often cement raw material quarries present unique geological features connec...

Sustainable vision supported by thyssenkrupp at Cotec meeting

10 February 2017, Published under Cement News

At the 11th Cumbre de Cotec Europa, an event hosted by the Cotec Foundation, thyssenkrupp supported the organisation's vision for a sustainable model for the economy and production systems. Together with several European partners the company has already developed various products aimed at reducing waste and energy consumption in cities, where the largest amount of energy is consumed. The King of Spain, Felipe VI, chaired the event together with the President of the Italian Republic, Sergio...

Gaining in strength

30 January 2017, Published under Cement News

As cement companies aim to lower their carbon footprint by reducing the clinker factor in their final product, clinker substitution features high on the agenda. The use of silica fume and rice husk ash provide options to replace clinker without affecting compressive strengths of cement mortars. By Feryal Çelik, Mardin Çimento, Turkey. Laboratory research at Mardin Çimento showed the effect of silica fume and ruce husk ash on cement mortar strength Silica fume and rice husk ash a...