Displaying items by tag: Sustainability

Peru: Unacem has unveiled its roadmap to 2030, committing to a carbon emissions target of 500kg of CO₂/t of cement by 2030 across all operations, a reduction from the current 607kg/t. The company plans to achieve carbon neutrality by 2050 and is investing US$300m to meet these goals.

In 2023, Unacem achieved a CO₂ reduction of 5kg/t of cement and targets a further 6kg/t reduction in 2024, with medium-term goals of 21kg/t and 16kg/t for 2025 and 2026, respectively. The roadmap also includes enhancing thermal efficiency and transitioning to 100% clean energy for its Peruvian operations by 2035.

India: The Bhubaneswar Municipal Corporation has decided to continue its partnership with Dalmia Cement, allowing the company to receive an additional 70,000t of refuse derived fuel (RDF) from a temporary transit station at Gadakana. This decision comes as part of ongoing efforts to manage the substantial amount of RDF generated from daily waste processing, according to the New Indian Express.

An official from the civic body said "As the waste-handling site receives around 450t/day of garbage, we have agreed to allow Dalmia to take another 70,000t of waste. Previously, we had signed a contract with the company to send 70,000t of RDF to its Rajgangpur factory for co-processing within nine months. In the last six months, around 50,000t of waste has been sent."

India: The Jaipur Heritage Municipal Corporation has successfully converted around 6000kg of seized single-use plastic into a revenue-generating resource by selling it to cement plants. The plastic was collected over the past three to four months from local markets as part of an anti-plastic campaign, according to the Press Trust of India.

Commissioner Abhishek Surana said "Disposal of the seized single-use plastic was a major issue. We assessed that a supply chain exists in the system and installed refuse derived fuel machines at dumping yards to shred the plastic and sell it to cement manufacturing plants. It has also started generating revenue for the corporation."

Switzerland: Holcim plans to invest around US$278m in its three Swiss cement plants to reduce the use of fossil fuels in cement production and comply with future limits set by the Swiss Air Quality Control Ordinance. The ‘Phoenix’ project alone is expected to cost between US$78 and US$111m, according to Clemens Wögerbauer, chief commercial and sustainability officer at Holcim Central Europe West.

The Phoenix project will reduce the use of lignite for heating cement kilns. A gasifier will be constructed to process waste materials like residual wood, paper sludge and plastics into synthesis gas for heating the kilns. Additionally, a catalyst powered by the kiln's waste heat will be used to reduce nitrogen and ammonia emissions, aligning with future Swiss environmental targets. The Siggenthal plant is expected to reduce its CO₂ emissions by over 30,000t/yr from its current output of 450,000t/yr.

The new facility is scheduled to start operating in 2028 and may be replicated in other Holcim cement plants if successful. The Phoenix initiative will increase the proportion of alternative fuels used from the current 57% to 80%, targeting over 85%.

US: Holcim has invested in Travertine, utilising the startup's technology to bind CO₂ from direct air capture into advanced mineral components for permanent carbon sequestration. This investment, made through Holcim MAQER Ventures, will scale Travertine’s technology for cement decarbonisation.

Chief Sustainability Officer at Holcim, Nollaig Forrest, said, "We're excited to work with innovative startups like Travertine to advance our goal of making decarbonised cement and concrete a reality at scale this decade. Driving circularity, Travertine reduces carbon emissions by capturing and binding CO₂ into advanced mineral solutions."

Spain: Mondi has launched the 'SolmixBag', a sustainable packaging solution, in collaboration with Cemex in the Balearic Islands of Ibiza, Mallorca and Menorca. The single-layer paper bag is designed to store and transport dry mortar, dissolving in the mixing process and integrating with the cement to reduce waste. The Balearic Islands have strict legal requirements on landfilling, waste incineration and extended producer responsibility, which have reportedly initiated the partnership.

Commercial Director at Mondi, Fabio Barbieri, said "This is an exciting step in the trajectory of SolmixBag, which offers an easy and convenient solution to use on construction sites. The product launch brings our MAP2030 goals to life by effectively reducing waste, and also illustrates our collaborative approach.”

US: Queens Carbon has secured a US$14.5m grant from the US Department of Energy under its SCALEUP program. The funding will support the pilot of Queens Carbon's low temperature, ‘zero CO₂’ emission technology at an existing cement production site. Queens Carbon's supplementary cementitious materials, which replace 20-50% of the high-CO₂ binder in cement, will be produced at a pilot plant with a capacity of 10t/day.

CEO Daniel Kopp said “This SCALEUP grant is a tremendous step forward on our path to commercialisation. Partnering with the Department of Energy and a major cement industry player to deploy, operate, and optimise our 10t/day pilot plant will put us on an accelerated path to gigatonne-scale CO₂ reductions.”

India: Shree Cement says that it has reached 1GW captive power capacity across its plants, after commissioning a new 19.5MW solar power plant at a facility in Andhra Pradesh. Renewables account for 499MW (50%) of the total. Shree Cement says that its investments in renewables to date total US$479m. NBM & CW News has reported that the company has current planned new investments worth US$120m in renewables. This will cover 132MW-worth of solar, 36MW of wind and 34MW of waste heat recovery power capacity.

Switzerland: Holcim has acquired recycling, ready-mix concrete and aggregates company Cand-Landi Group. The company employs 250 people across its operations in Western Switzerland. Holcim plans for Cand-Landi Group to supply alternative raw materials and fuels for use at its Eclépens plant. It says that the acquisition will increase its recycling capacity of construction and demolition materials by 100,000t/yr.

Holcim CEO Miljan Gutovic said "The acquisition of the Cand-Landi Group will advance decarbonisation and circularity in Switzerland, a lighthouse market for innovation at Holcim. I look forward to welcoming all 250 employees of the Cand-Landi Group and investing in our next chapter of growth together."

Switzerland: Neustark has raised US$69m in a growth equity round to scale up its carbon dioxide removal technology. The funding, led by Decarbonisation Partners—a collaboration between BlackRock and Temasek—will support Neustark's aim to permanently remove 1Mt of CO₂ by 2030. Climate tech growth investor Blume Equity also joined the round, alongside existing backers Holcim, Siemens Financial Services, Verve Ventures and ACE Ventures.

Neustark has developed a technology that captures biogenic CO₂ at its source and utilises it in building materials through an accelerated mineralisation process. This method is currently applied at 19 carbon capture and storage plants in Switzerland, Austria, Liechtenstein and Germany, with 40 more under construction across Europe.

Johannes Tiefenthaler, co-CEO and founder at Neustark, said “We turn the world’s largest waste stream, demolition concrete, into a carbon sink. In the past year, we have already deployed our unique solution at 19 sites. This growth investment will take us into the next exciting phase of our mission, helping us to further scale our impact across Europe, enter new markets in North America and Asia Pacific, and develop new solutions to store even more CO₂ in mineral waste streams.”