Displaying items by tag: Dust

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.

Kyrgyzstan: Kant Cement has successfully transitioned Grinding Unit 8 of its Kant cement plant to closed cycle grinding operations. Business World News has reported that China-based CNBM Beijing Triumph carried out the work. The transition has increased the unit's production capacity by 30 - 40%.

Kant Cement's general director Pavel Dekhtyarev said "The mill previously produced 40t/hr of CEM II cement and 30t/hr of CEM I cement. Now it produces 58t/hr and 50t/hr, respectively. With this productivity, it was possible to reduce the specific energy consumption by 30% and reduce dust emissions. In addition, closed circuit grinding allows us to produce high grades of cement that could not be obtained with open circuit grinding systems."

Uzbekistan: United Cement Group (UCG) has implemented environmental social governance (ESG) standards across its Uzbek cement operations. The new standards establish transparency on the company's legal compliance, working conditions and impacts on all stakeholders.

Business World Magazine has reported that general director Serik Ukanov said "Control of emissions of harmful substances and compliance with ESG norms is carried out by each enterprise under the supervision of the holding company. Each factory of the holding has a separate 'Targets' department, which is responsible for operations, repair and maintenance, as well as the adjustment of all the dedusting installations of raw materials and grinding mills and rotary kilns. We produce monthly and quarterly emissions reports and keep statistics on the carbon footprint per tonne of cement." He continued "UCG's next big step is a multi-phase project to reduce this carbon footprint. A contract was signed with KHD Humboldt Wedag to renovate two rotary kilns."

UCG subsidiary Qizilqumsement said that it was carrying out testing at its Qizilqum cement plant in partnership with Germany-based KHD Humboldt Wedag in May 2023. The company is in the process of expanding the plant's integrated capacity by 1.8Mt/yr through the construction of its upcoming Line 4.

UK: Cemcor has installed a new US$7.54m bag filter at its Cookstown cement plant in County Tyrone. The system will detect signs of bag damage and isolate the affected row of bags for either online maintenance or, if the damage is minor, resealing with process dust.

The Irish News has reported that managing director David Millar said “We are forward thinking at Cemcor and understood it was time to put our money on the line and invest in the plant's efficiencies and sustainable outputs, to protect the environment around us and future-proof the plant itself."

Egypt: Heidelberg Materials subsidiary Suez Cement has invested US$16m in upgrading its operations towards increased alternative fuel (AF) use since 2010. The producer uses AF in the burners and kilns of all three of its cement plants, at Helwan, Kattameya and Suez. Meanwhile, Suez Cement has invested US$60m in dust control measures over the same period. Other on-going investments include US$25m in the construction of a waste heat recovery (WHR) plant at the Helwan cement plant. The company is committed to reaching a 24% reduction in its CO₂ emissions between 2019 and 2030.

Technical director Omar Khorshid said “We are committed to pursue initiatives to broaden our range of innovative and eco-friendly building solutions, advance operational efficiency through digitalisation and strengthen customer engagement for better business results and more positive impact."

Indonesia: Norway-based Norges Bank has placed Semen Tonasa under observation for risk of damage to art in Leang Leang Maros Prehistoric Park in South Sulawesi. Reuters has reported that the cement producer has no monitoring system in place for its limestone mining operations near to the designated UNESCO Global Geopark. Vibrations and dust reportedly present a danger to the 44,000yr-old works of art at the site. Norges Bank holds a 1.6% stake in Semen Tonasa's parent company Semen Indonesia.

Norges Bank said "The background for the decision is the unacceptable risk of damage to prehistoric and irreplaceable culture heritage."

Fiji: A court has ordered Pacific Cement, Tengy Cement and haulage contractor RPA Group to pay damages to Fiji Fish Marketing Group for creating a nuisance. The Fiji Times newspaper has reported that the court found that the cement importers emitted dust during the unloading of clinker, which caused Fiji Fish to incur a loss. The damages amounted to US$900,000.

Canada: A court has fined Lafarge Canada US$145,000 for a dust spill from its Bath, Ontario, cement plant in October 2019 that 'covered' homes, gardens and cars. The court found that the emission 'caused or was likely to cause adverse effects.' The Belleville Intelligencer newspaper has reported that the Canadian Ministry of Environment previously concluded that no harm to health resulted from the incident.

Plant manager Ignacio Arroyo said "Myself and our plant team unreservedly apologise for the upset and concern that our dust release has caused all of you. We intend to make it right and make sure it never happens again."