Displaying items by tag: JFE Steel

Japan: JFE Steel and Innoqua, a startup linked to the University of Tokyo, are working on using slag as an artificial bed for coral reef restoration. JFE Steel has recently installed a 1m fish tank in the lobby of its Tokyo-based headquarters as part of a feasibility test for the biodiversity initiative, according to the Nikkei newspaper. The companies are testing Marine Block, a product made from slag that is processed using a proprietary technique to allow coral to attach to it easily. The initiative will examine which species of corals are most likely to attach to the Marine Block, the ideal growing conditions and then move on to larger-scale coral breeding.

The Japanese steel industry produces over 35Mt/yr of slag. The majority of it is used in infrastructure projects. JFE Steel hopes to use about 10% of the slag it produces in 2030 in port and marine applications.

Japan: Taiheiyo Cement, JFE Steel and the Global Institute for Environmental Technology are working together to develop a carbon capture and storage system. The system will use wet alkaline earth metals extracted from steel slag to produce carbonates from exhaust gases at cement and steel plants. The partners are investigating the possibility of using these carbonates, specifically calcium carbonate and magnesium carbonate, as additives in cement production at Taiheiyo Cement’s plants. Taiheiyo Cement president Masafumi Shigehara said, “With the effects of climate change becoming apparent both in Japan and overseas, the importance of global warming counter-measures is increasing.”

Japan: JFE Steel Corporation will use its steelmaking slag product Marine Stone in an environmental improvement project by Hiroshima Prefecture. Around 38,000t will be laid under the inner harbour of Fukuyama Port in Fukuyama-shi, Hiroshima. The sediment improvement agent is expected to control the generation of hydrogen sulphide.