Cement News tagged under: environment

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Extending quarry life

18 June 2018, Published under Cement News

Although a key part of the cement plant, the quarry has a finite lifetime. Its longevity often depends on which material grades are required and how the faces are worked to quarry such materials. Therefore, a well-designed quarry plan can help extend the life of this valuable asset. By Fabio Coletta, Whitehopleman, UK. Figure 1: as a first step in extending quarry life, a suitable raw mix needs to be defined The life of a cement plant quarry is limited in time but can be extende...

Hanson surpasses 2020 sustainability targets

07 June 2018, Published under Cement News

Hanson UK's latest sustainability report announces that the company has passed its 2020 targets for reducing both mains water use and waste to landfill while CO 2 emissions per tonne of product have fallen by 7.2 per cent to reach the lowest level for five years. The number of lost time injuries remained static at 21, but the frequency rate was down on the prior year and there was a three-month unbroken spell without a lost time injury. A major development during the year was the launc...

Clinker transport causes pollution in Fiji

05 June 2018, Published under Cement News

Pacific Cement Ltd (PCL) has been accused of clinker dust pollution by local residents in the settlement of Kalekana, in Fiji. Clinker is transported daily by truck to its factory and conditions are becoming intolerable for local residents outside Lami. General manager of Pacific Cement Ltd, Sowani Tuidrola confirmed the clinker belonged to PCL, but the transportation of the product was the responsibility of Williams & Gosling Ltd, which itself is contracted by MY Transport Co Ltd. Aiyub...

Burning used tyres

24 May 2018, Published under Cement News

One way of reducing the fossil fuel requirement in clinker production is through the use of alternative fuels (AFs). Walter Materials handling, part of the ATS Group, looks at one plant that has invested in the burning of end-of-life tyres to reduce its thermal energy costs, lower its CO 2 emissions and tackle tyre disposal issues. By Basri Ogut, Walter Materials handling, France. LafargeHolcim invested in an end-of-life tyre project at its Martres-Tolosane plant in France ...

Mercury capture optimisation

16 May 2018, Published under Cement News

Activated carbon injection (ACI) has been an effective approach for reducing mercury emissions in various industries. The US power industry, for example, began implementation of ACI around 2014 with the onset of the Mercury Air Toxic Standards (MATS) which regulate the emissions of mercury and acid gases from coal-fired power plants. The lessons learnt from the power sector provide useful reading for the cement industry. By Erica Gonzaga, Carbonxt Group Ltd, USA. Spray dryer absorber ...

Actions not words

20 April 2018, Published under Cement News

Climate change is one of the key issues of our time, but the world is far from achieving the objectives of the Paris Agreement. Like every energy and CO2-intensive sector, the global cement industry is at a crossroads. The solution will require mapping out and implementing a tangible plan of action if we are to have any chance of accelerating the pace of decarbonisation. By Bernard Mathieu, World Cement Association, UK. Figure 1: the global risks landscape 2018 According to the ...

Changing world, changing industry

28 March 2018, Published under Cement News

How much influence do modern-day global trends such as climate change, shifting economic power and urbanisation exert on the cement sector? This article looks at several key megatrends and their impact on decisions for the cement industry of the future. By Dr Adrian Vaida, independent researcher, Australia. In today’s rapidly-changing world the cement industry must adapt its practices and products to successfully navigate the challenges and opportunities ahead Business in gen...

Waste to wealth

21 March 2018, Published under Cement News

Lafarge Africa’s Ewekoro plant, some 50km north of Lagos, in Ogun state, Nigeria, pioneered the use of alternative fuels in the country. The company charts the milestones and looks at the future challenges in transforming biomass waste to a source of wealth for the company and local communities. By Abdel-Ileh Chouar, Lafarge Africa, Nigeria. A truck delivers biomass to Lafarge Africa’s Ewekoro plant, Nigeria In 1995, one of the projects carried out by Segun Shoyoye, a young, new...

Playing its part in Paris

12 March 2018, Published under Cement News

In line with the UN’s Paris Agreement on climate change, HeidelbergCement has published its ‘Sustainability Commitments 2030’, which see the cement producer leading the development of carbon capture, utilisation and sequestration (CCUS) technologies for the cement industry. By Jan Theulen, HeidelbergCement, Germany. Figure 1: test facility for CCS at Brevik, Norway In November 2017 HeidelbergCement published its ‘Sustainability Commitments 2030’, reflecting the company’s environ...

Tanzania Portland Cement given ultimatum over dust emissions

08 March 2018, Published under Cement News

Tanzania Portland Cement Company Ltd (TPCCL) has been issued a two-month ultimatum from the government to improve its dust control or face a ban. The Deputy Minister of State in the Vice President's Office (Union and Environment), Alphaxard Kangi Lugola, said local residents in Dar es Salaam faced health concerns due to the dust emissions from the plant. "Having listened from both sides, I am now convinced that the dust problem is real. I am, therefore giving a two-month ultimatum for the ...