Displaying items by tag: Waste

Thailand: Saraburi, which houses Thailand’s key cement plants, is expected to start converting waste to energy in a project led by the Thai Cement Manufacturers Association (TCMA). TCMA has developed a pilot project to create ‘ignitable waste pallets’, which will replace imported coal in cement production, according to TCMA chair Dr Chana Poomee. The process involves using waste from mining, cement plants and local communities to produce fuel, focusing on waste that cannot be reused or recycled.

Seven cement plants are located in the Tan Diao subdistrict due to its proximity to limestone mountains essential for cement production. The province is facing a growing waste management problem, owing to urbanisation and the expansion of agribusiness in the area. ‘Saraburi Sandbox’ project, a public-private-people partnership (PPP), seeks to address these issues.

Kittipong Promwong, president of the National Higher Education, Science, Research and Innovation Office, believes the Saraburi Sandbox is crucial to the government's commitment to lowering CO₂ emissions.

Italy: Scientists Gregory Chass and Kun Tian have developed a sustainable concrete from wet waste materials through their company Mesoscale Engineering Halcyon. This 'green concrete' concept was conceived in Garbatella and will first be tested on the district's pavements. The concrete, made by combining and recycling industrial CO₂ emissions with brine from saltworks, is part of the Clean Energy Transition Partnership. It is also central to the BUCK$$$ project, led by Kun, focusing on carbon capture and utilisation. This project, with €2.54m in funding, involves 13 partners from seven countries.

This innovative concrete arises from 'mineralised CO₂', which is similar to mollusc shells made of calcium carbonate, as well as materials derived from saltwork brine, desalination, and industrial wastewater. Both currently underused products are expected to become crucial in the cement and concrete industries, particularly in Italy.

Spain: Cemex España has announced its participation in the HYIELD consortium, which plans to build a waste-to-hydrogen demonstration plant at the producer’s Alcanar cement plant in Catalonia. The demonstration plant will process a total of 2000t of biogenic waste to produce 400t of green hydrogen for use as fuel, fertiliser and for other applications. The trial commands Euro10m in funding from the EU’s research and innovation funding programme Horizon Europe. Parent company Cemex believes that the technology being demonstrated at Alcanar has the potential to process 300Mt/yr of waste across Europe and produce 30Mt/yr of hydrogen.

Cemex’s Europe, Middle East and Africa regional president Sergio Menendez said “As part of its drive towards reaching net zero by 2050, Cemex is committed to partnering with like-minded organisations to explore the very latest innovations in more sustainable technology that can support the cement production process. We are proud to provide one of our cement plants in Spain as the location for the HYIELD trial and excited to see the outcomes from this research and development project.”

Europe: The European Parliament voted in favour of multiple amendments to the European Commission’s Packaging and Packaging Waste Regulation (PPWR) on 22 November 2023. The amendments remove, modify or make non-binding the PPWR’s 2040 reuse targets. Meanwhile, 2030 targets were made adjustable to recycling rates. Total packaging volumes are still required to drop by 5% by 2030 and by 15% by 2040 in each member state.

Sustainability lobbying organisation Environmental Coalition on Standards (ECOS) described the introduction of recycling rates into a lower schema of waste targets as ‘comparing apples with pears.’ ECOS attributed the amendments to a ‘barrage’ of false claims, scaremongering and lobbying from industry players.

ECOS programme manager Mathias Falkenberg said “This decision will not sufficiently address rising plastic and packaging waste or the pollution crisis. The European Parliament has just weakened a perfectly feasible solution to tackle throwaway culture without offering an alternative. It is very frustrating that the European Commission’s progressive prevention and reuse agenda has not received full support from the Parliament today.”

ECOS founded the Alliance for Low-Carbon Cement & Concrete (ALCCC), an association of companies focused on alternative building materials production, in May 2023.

Spain: Holcim España invested Euro4m in an upgrade to its 1.5Mt/yr Carboneras cement plant in Almería. Alimarket-Construction News has reported that the upgrade will raise the plant’s alternative fuel (AF) substitution rate to 70% and enable it to dispose of 50,000t/yr of waste through co-processing it as AF. Holcim España expects this to reduce its CO₂ emissions by 22,000t/yr.

India: Heidelberg Materials subsidiary Zuari Cement has commissioned a 20t/hr alternative fuel (AF) production line at its 7.1Mt/yr Yerraguntla cement plant. The line includes an UNTHA XR3000C shredder. This will support continuous operations and turn waste to AF in a single step, according to Zuari Cement.

HeidelbergCement India technical director Vimal Jain said “We are passionate about driving environmental progress throughout our business, and the use of AF is one way to do that. But this waste-to-energy feedstock comes at a cost, which is why co-processing makes so much sense. When designing this plant, we needed to ensure versatility to allow for changing market conditions, and an investment in technology that makes commercial sense and is built to last.”

US: Texas-based Solidia Technologies has patented a synthetic pozzolan that may be used as a supplementary cementitious material (SCM) in cement production. The product is based on previously low-value materials, including minimally processed oil shales and clay minerals. Solidia Technologies produces the material by various methods, including firing the materials to yield a mix of crystalline components and activatable amorphous phase material. Alternatively, production may also involve the aqueous decomposition of manmade silicates in the presence of CO₂.

Mexico: Cemex Mexico subsitituted 36% of it cement fuel with alternative fuel (AF) in 2022. This exceeds the Mexican cement industry’s target for 2030, of 32%. Mexico Business News has reported that the producer used 1.05Mt of AF across its operations. This reduced its CO₂ emissions by 1.8Mt, and prevented 850,000t of methane emissions from being generated in landfill. Cemex Mexico’s Huichapan cement plant in Hidalgo set the company record for the year, with 207,000t of AF co-processed in its cement production. It produced 3.2Mt of cement for the Bajio, Central, Central-North, Laguna and Southeast Mexico markets.

Sustainability Manager Carlos Medina said "Last year’s results motivate us to intensify our efforts and uphold good practices that benefit communities and the environment. We will keep promoting environmentally friendly solutions in all our operations, as we are convinced that all social actors must collaborate to lay the foundations for a better future."

Canada: Lafarge Canada says that it successfully integrated 10,000t of recycled concrete waste in cement production at its St. Constant cement plant in Quebec using its ECOCycle Technology process. The year-long production trial constituted the first phase of Lafarge Canada’s pilot of ECOCycle Technology. The producer says that the achievement solidifies its leading position in North American circular construction innovation. Waste360 News has reported that concrete constitutes 4Mt (40%) of Canada’s 10Mt annual generation of construction and demolition waste.

President and CEO David Redfern said “By reusing construction and demolition wastes in the production of new building materials, we are reducing waste sent to landfill. Across Lafarge Canada, we’re evaluating any opportunity to decarbonise our operations, and circularity is part of this effort. This pilot is critical to demonstrate that we can effectively repurpose concrete waste, which goes a long way to conserve our naturally occurring resources and loops in construction sustainability - building new from old.”

Japan: Taiheiyo Cement has concluded an agreement to dispose of waste produced by any natural disasters that should occur in Hidaka City and Saitama Prefecture. Under the agreement, Taiheiyo Cement will establish a disposal system with realises the potential of disaster waste as a resource. This will work alongside another recycling programme for conventional wastes. The cement producer says that this will help to build a safe and secure community.