Displaying items by tag: Waste

Belarus: The country’s cement sector is intensifying efforts to use refuse-derived fuel (RDF) in cement production, according to the state information agency Belarus Telegraph Agency.

Belarusian Cement Company introduced an RDF processing line in 2021 at OAO Krasnoselskstroymaterialy in Grodno Oblast, enabling full incineration of RDF supplied by local waste-processing plants. Contracts are reportedly already in place with RDF suppliers for 25,000t of the fuel to be delivered by the end of 2025.

In September 2025, industrial trials of RDF made by Minsk-based Ekores will begin. If successful, shipments from the company could double from 15,000t to 30,000t, raising total RDF use to 40,000t in the final quarter of 2025.

Plans are also underway to expand RDF infrastructure in 2026, with a regional municipal waste management and RDF production complex under construction near Volkovysk.

South Korea: The Ministry of Environment has announced a pilot project to recycle waste fabric scraps from sewing factories into alternative fuel for the cement industry. The agreement has been signed with: textile companies Pang Rim, Sewang, Sinhan Spinning & Textile; cement companies Ssangyong C&E and Asia Cement; and the Korea Recycling Service Agency (KORA). It expands on an earlier initiative launched in 2024 with four Seoul districts.

Under the project, fabric scraps that were previously incinerated or landfilled will be separated, sorted and processed into intermediate fuel, which cement plants will use in the production process. The Ministry said that KORA will support raw material supply and recycling logistics, while cement firms will adopt the fabric-derived fuel to reduce waste and fossil fuel use.

Kim Go-eung, Director General of the Resources Circulation Bureau, said “The separation, sorting and recycling of waste are essential elements for producing high-quality recycled raw materials. To establish a circular system, we will continue to identify and expand various measures so that the supply of excellent recycled raw materials and the securing of demand sources can be balanced.”

India: Tiruchi Corporation has intensified efforts to manage non-recyclable plastics by diverting them to cement plants for use as alternative fuel. The city generates 400 - 450t/day of waste, of which about 75% is segregated at source. Non-recyclable plastics are collected through door-to-door systems and sent to Dalmia Cements’ and UltraTech Cement’s plants, where they are used as refuse-derived fuel (RDF) in the kilns. Since July 2024, 2384t of plastics have been diverted to cement plants.

An upcoming automated material recovery facility at Ariyamangalam, with a capacity of 250t/day, is expected to further improve segregation, ensuring recyclable, non-recyclable, inert and RDF streams are directed to cement plants for reuse.

Vietnam: Vinh Long Province has called on national ministries to introduce preferential policies to encourage the use of coal ash and slag from the Duyen Hai thermal power centre as construction materials, reports The Saigon Times. According to the Vietnam Cement Association, coal ash and slag from thermal power plants have been certified by the Institute for Building Materials under the Ministry of Construction as suitable for use as cement additives, which could reportedly help to ease shortages of construction materials while addressing the disposal of industrial waste in landfills.

The provincial People’s Committee has proposed that the Ministry of Construction and the Ministry of Finance issue mechanisms that prioritise coal ash and slag over natural resources in traffic and civil construction projects. It also called on the Ministry of Science and Technology to work with agencies to review and update technical standards for using thermal power by-products. By the end of 2024, 4.37Mt of coal ash and slag had accumulated at the Duyen Hai thermal power centre in Vinh Long. Nearly 700,000t more has been generated since January 2025.

Japan: Cement producers used 21.9Mt of post-consumer materials and by-products in the 2024 financial year, down by 3% year-on-year, marking the third consecutive annual decline, according to the Japan Cement Association.

Coal ash and blast furnace slag, which together make up over 50% of the total, both declined, although post-consumer plastics increased for a fourth consecutive year.

Cement production, including clinker for export, also fell by 3% to 45.7Mt. The amount of byproducts used per tonne of cement dropped from 480kg in 2023 to 478kg, but remained above 400kg for the 21st year in a row.

Spain: Holcim is exploring the use of char as an alternative fuel in cement production as part of the Plastics2Olefins project, in collaboration with Geocycle. The producer is evaluating char samples made from different types of plastic waste.

Geocycle plant manager Cristina Gómez said “Since char properties can vary depending on the feedstock, the company is conducting detailed evaluations – looking at calorific value, moisture content, heavy metals, halogens, and sulphur levels, among other parameters.”

These full-scale industrial tests aim to understand how char behaves during combustion, how it affects emissions of CO₂, NO_x, and SO_x, and whether it impacts the stability of the production process or the quality of the cement. Char samples produced at the Repsol pilot plant are being tested at two of Holcim’s facilities: the Quality Central Laboratory and Geocycle Albox. Gómez added “These comprehensive tests provide a solid understanding of char’s properties and help anticipate how it will perform in real-world industrial conditions.”

Holcim is also experimenting with blends of char and petcoke to optimise energy performance and environmental compliance.

Pakistan: Cherat Cement has submitted a proposal to Water and Sanitation Services Peshawar (WSSP) to use municipal solid waste from the city as refuse derived fuel (RDF) under a public-private partnership. The company said that approximately 500t/day of waste is collected from Peshawar and currently dumped at a 1.6Mt capacity landfill. The initiative would replace coal in cement production and generate revenue for WSSP while tackling the issue of solid waste management.

Uganda: Hima Cement has said that over 50% of its fuel for cement production now comes from renewable biomass instead of heavy fuel oil (HFO). Head of regulatory affairs David Mugagga said that the biomass used to fuel the kilns at Hima Cement’s plants is sourced from coffee husks, palm kernels, rice husks and sawdust. Mugagga also said that the company collects hazardous waste to use as fuel, reducing the amount that goes to landfill.

India: The Rural Development Department has signed a memorandum of understanding with ACC Cements to co-process non-recyclable plastic waste at its Barmana plant. The initiative will cover the Bilaspur, Chamba, Kangra, Kullu and Mandi districts. The partnership follows similar agreements with Ambuja Cements and UltraTech Cements, and aims to reduce environmental pollution and landfill use through cement kiln co-processing.

China: Authorities in the province of Hunan have identified a cement plant as the source of thallium contamination in the Leishui River following a botched demolition at the end of 2024, according to Sixth Tone news.

Yongxing County officials said that rainfall had washed thallium-laden dust from a dismantled kiln into the river. Levels peaked at 0.13μg/L, exceeding the national standard of 0.1μg/L, but have since returned to safe levels. The nearby city of Chenzhou is reportedly a hub for non-ferrous metal mining and processing, and a number of Chinese cement plants have begun to process industrial solid waste in recent years. According to Peng Yingdeng, a researcher at the Ministry of Ecology and Environment, this method is a common approach for hazardous waste disposal, but can lead to high concentrations of thallium salts in the kiln’s residue. The owner of the plant, Hunan Liantian Cement, added solid waste management to its list of businesses in September 2024.

The local government has despatched teams to apply chemical treatments to the affected areas, with water quality since returning to safe levels. Local residents’ drinking water was reportedly not affected.