Displaying items by tag: Dust

Kenya: Mining and Blue Economy Cabinet Secretary Hassan Ali Joho has ordered the closure of the Simba Cement plant in Kilifi County due to pollution concerns. Residents have reported issues from stone blasting and dust, with one resident reporting that early morning blasting has caused ‘cracks’ in their house and exposed families to respiratory diseases, according to the Kenyan Post newspaper. It was also reported that the company has allegedly displaced residents to expand its mining operations.

US: The Portland Cement Association (PCA) has voiced its concerns over the Environmental Protection Agency (EPA)'s newly finalised standard for particulate matter 2.5 (PM2.5). The new standard reduces the level of particulate matter below 2.5μm diameter permitted in flue gas emissions to 9μg/m³ from 12μg/m³. The PCA says that it is concerned that the new rule may restrict US cement producers’ operations and ‘further complicate’ their efforts to achieve net zero emissions by 2050.

President and CEO Mike Ireland said “This new rule strikes at the heart of the US cement industry's ability to deliver on the Biden Administration's infrastructure goals, as it would lead to fewer hours of operation at plants, which would mean layoffs, as well as less American cement and concrete at a time when the country needs more.” He added “The previous EPA standard on particulate matter emissions — arrived at by government officials working with industry — significantly drove down those emissions by 37% over the last 20 years. This downward trend would have continued without the new standard imposed."

However, EPA administrator Michael Stanley Regan said that the updated standard will prevent 4500 premature deaths and 290,000 lost workdays annually by 2032. Regan said “We do not have to sacrifice people to have a prosperous and booming economy.”

UK: Aggregate Industries has successfully removed gas duct sections from the electrostatic precipitation filter at its Cauldon cement plant in Staffordshire. This will make way for the installation of a new CTP Team process kiln bag filter, following an annual shutdown.

Cauldon plant capital expenditure manager Mark Powling said “The new bag filter not only provides the best available technology, but will enable the Cauldon plant to optimise its plant performance, driving its decarbonisation and alternative fuel strategies. Thanks to the project team for their efforts and hard work to date.”

Egypt: Arabian Cement Company is replacing electrostatic precipitators at its Ain Sokhna cement plant with bag filters. Arab Finance News has reported that the project will commence in two phases. Arabian Cement Company will first install the filters in Line 1 of the plant, before subsequently installing them in Line 2. Italy-based air pollution control specialist Redecam Group will execute the upgrades.

India: The Saffron Growers Association (SGA) has said that cement plants in Kashmir are causing dust pollution, to which the association attributed the decline of the local saffron industry. Down to Earth News has reported that the SGA alleges that the state’s traditional crop has ceased to be profitable because of extra costs arising from the fall of dust during flowering season. The association added that pollutants such as nitrous oxides (NO_x) and sulphur dioxide (SO₂) can also affect saffron’s growth.

The SGA called on authorities to regulate the construction of cement plants and their emissions more closely.

Canada: Residents of Exshaw and Lac des Arcs, Alberta, near Lafarge Canada’s Exshaw cement plant, have filed a lawsuit over allegedly increasing dust emissions from the plant. Postmedia Breaking News has reported that law firm Napoli Shkolnik Canada said that dust spills occur ‘regularly.’ The plant’s operations allegedly also blacken snow on the ground in the area and have caused ‘severe’ odours and ‘violent’ tremors.

UK: Cemex UK says that it has collected 130,000t of by-pass dust (BPD) from its Rugby cement plant in Warwickshire since 2015. The producer supplies the BPD to the agriculture sector, where it can replace traditional fertilisers and lime due to its high lime and potassium content. Additionally, Cemex UK has sponsored research into this and other circular economic uses of BPD, including an on-going study which claimed the Carbon Journey Award at the Eco Innovation North West Awards 2023.

Cemex’s Europe regional head of sustainability Paul Fletcher said “We are very proud of our partnership with Silverwoods and the considerable positive impact their innovation and expertise has had on our ability to reuse BPD for other applications. We believe it leads the way in our industry and presents real potential to be adapted elsewhere across our operations. Not only does it benefit the environment by reducing the amount of materials that need to be disposed of, but it generates a product that has a value for farmers and helps cut the use of traditional materials.” He added “This partnership demonstrates that to deliver true circularity, more industrial by-products, including those from different sectors of the economy, need to be used as secondary resources, rather than primarily be seen as waste. If this is to be achieved, a new perspective is needed to boost circular economy practices, with regulations and permitting supporting this proactively.”

Nigeria: Lafarge Africa has installed a new bag filter at its 3.9Mt/yr Ewekoro cement plant in Ogun State. The filter cost US$8.51m. Lafarge Africa says that the equipment has successfully reduced the plant’s dust emissions to below 50mg/Nm³. The company said that it has made ‘significant adjustments’ to its production activities, besides introducing air quality measurement systems across a 10km radius of the plant.

Lafarge Africa’s head of health, safety and environment Rachael Ezembakwe said “Care for the environment and for our host communities is built into all aspects of our operations within the country. Our social impact is focused on the areas of the most need: education, empowerment, health and safety, and shelter/infrastructure.”

UK: Aggregate Industries subsidiary Lafarge Cement has begun installing a new Euro10m bag filter system at its 1Mt/yr Cauldon cement plant in Staffordshire. The project is due for delivery in early 2024. The system consists of 2080 fabric bags to remove particulates from the plant's flue gases. It will replace the plant's existing electrostatic precipitation system. The company says that the system will triple the removal rate of particulates, reducing them to 10mg/Nm³ from 30mg/Nm³.

Cauldon cement plant manager Thierry Davila said “The installation of the new system will help us provide a step change in our efficiency and effectiveness, and optimise kiln performance. The plant and our operations will hugely benefit from up-to-date technology, which will result in more consistent running of the site, but also it will improve environmental performance and benefit the local community. The new filter system will mean less dust and emissions into the atmosphere and a reduction in pollutants, which is hugely positive and in line with our approach to sustainability.”

Ivory Coast: LafargeHolcim Côte d'Ivoire has invested a total US$677,000 in sustainability-enhancing upgrades to its 2Mt/yr Abidjan grinding plant since 2020. Agence Ivoirienne de Presse has reported that the producer has now implemented 80% of recommendations made by sustainability auditor Centre Ivoirien Antipollution (CIAPOL). Recommendations included the installation of dust capture systems.

General manager Rachis Yousry said "In 2022, LafargeHolcim received zero complaints from local residents for environmental degradation.” He added the producer was on track to realise net zero CO₂ emissions by 2050.