International Cement Review articles tagged under : Environment
Decarbonisation quick wins
Different world regions present different challenges to the cement industry. While in the fast-growing economies of Asia and Africa building capacity and security of supply are key, cement plant operations in other regions are more affected by the need to reduce CO 2 emissions as their economies aim for decarbonisation. There is good news for both sides: the use of a new clean fuel can make a...
Bringing an old quarry to life
Quarry rehabilitation comprises more than just the planting of different varieties of trees on land no longer used. Cimenterie Nationale’s rehabilitation project in Lebanon also includes the country’s first green bel...
Caracolito’s cleaner air
The replacement of the electrostatic precipitator with a bag filter at Cemex’s Caracolito plant in Colombia has had a positive impact on the company’s emissions indicators as well as the local environment and neighbo...
Plugging the plastic leakage
The issue of post-consumer plastic leaking into the ocean with devastating consequences on marine life has existed for some time but only recently the rallying call to solve this issue appears to have been firmly hea...
Leading from the front
Following last year’s IPCC report on climate change, there has never been a greater urgency to reduce greenhouse gas emissions across all sectors and geographies to limit global warming to 1.5˚C. Therefore, the built...
Cementi Rossi’s ORC solution
Organic Rankine Cycle (ORC) technology for waste heat recovery is a widely-proven technology for cement factories. A new tailored, turnkey ORC unit for Italian producer Cementi Rossi will feed about 30 per cent of it...
The benefits of paper
A comparative study by the Swedish research institute RISE on behalf of the European Paper Sack Research Group (ESG) has found that the carbon footprint of paper cement sacks is 2.5 times lower than the footprint of ...
Finding a different kind of gold
While coal had been the mainstay of PPC’s energy sources for decades, the company’s current energy policy has called for a steady replacement of the black gold with more sustainable energy sources. This provided the ...
Durability of composite cements with calcined clay
Composite cements are clinker efficient and play an important role in reducing CO 2 emissions from cement manufacturing. To assure their correct application in concrete, their performance in concrete has to be demon...
Achieving AF and NOx goals
With reducing fuel costs and sustainability in mind, Brazilian producer Cimento Nacional is persistently striving to implement innovative methods to increase alternative fuels (AF) utilisation while reducing emission...
Thinking outside the bag
Tailoring its products around its bagging and packaging is just one of the ways in which Cementos Argos is driving innovation in the cement industry, while also focussing on efficiency and the environment. By Cemento...
From waste to co-processing
The route from the waste collection point to co-processing in a cement kiln is not without its challenges and too often, the thermal potential of waste as an alternative fuel in cement production is insufficiently un...
Streamlining China’s cement industry
With China’s cement industry due to reduce its energy use and emissions to levels set out in the country’s 13th Five-Year Plan, South Cement’s Vice Chief Engineer, Chen Yourong, looks at the technological options ava...
Latin America goes low-carbon
Recent months have seen significant progress in the move towards a low-carbon cement industry in Latin America. Building on the Cement Sustainability Initiative’s 2009 Cement Technology Roadmap, the Interamerican Cem...
Water as a valued resource
While seen as a common and “free” resource, this approach to water often leads to wasteful use of this source of natural wealth. Therefore, quantifying and calculating the cost of its use is the first step to truly v...
Bringing on the substitutes
As part of its drive to reduce its CO 2 emissions, Votorantim Cimentos is using a range of clinker substitutes to lower its clinker-to-cement ratio. As a result, around 86 per cent of its product portfolio in Brazil...