Displaying items by tag: bag filter

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.”

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.”

Germany: A Zollernalb, Baden-Württemberg resident who mounted legal action against Tübingen Council in June 2019 over LafargeHolcim subsidiary Holcim Süddeutschland’s use of waste glass in cement production at its 1.1Mt/yr integrated Dotternhausen plant has submitted ‘extensive reasoning’ for the challenge. The Schwarzwälder Bote has reported that Holcim Süddeutschland allegedly did not complete the proper tests before introducing glass to cement production at Dotternhausen in late 2017. The claimant ‘noticed a rise in heavy metal levels.’

At a subsequent council meeting, a Holcim Süddeutschland employee bore witness to the presence of a defective bag filter. By receiving glass ground to grains of a certain fineness, the claimant alleges that Holcim Süddeutschland was able to bypass federal waste regulations necessitating contaminant checks. They said the company was ‘taking citizens for idiots.’