Waste
The IHI Group strives to reduce waste by improving production yield at plants as well as sorting and recovering resources from waste.
To ensure that all waste is disposed of properly, the Group’s waste management initiatives also review collection, transportation, and waste disposal contracts, verify final disposal through digital manifests, and confirm circumstances on-site at intermediate and final waste disposal sites.
Cooperation with Third Parties to Reduce Waste
The IHI Group works with expert consultants to operate a waste management system to reduce the amount of waste generated at its plants and offices. By thoroughly understanding the quantity and type of waste, the Group ensures compliance with laws and regulations which leads to waste reduction.
Water Resources
The IHI Group primarily uses public and industrial water as water resources. In regions with abundant underground and river water resources, the Group uses these resources in combination with public water carefully to reduce its risk of obstruction to stable water withdrawal. Therefore, each plant and office considers the water quality and quantity necessary for its use and chooses the best resource to withdrawal water.
In particular, the Group purifies and distributes underground water through a relatively easy manner in regions with potable underground water. Cooling water for heat treatment furnaces and other equipment uses river or sea water instead of potable water. The Group also uses heat exchangers to avoid pollution risks during water discharge. In addition, sprinklers on its grounds reuse water processed through tertiary treatment as an alternative to public water as much as possible.
Water Risk Survey (On-site Surveys)
In fiscal 2022, the IHI Group conducted various surveys centered on water risks at five different sites.
Water risks refers to risks of waste water from its plants, offices, and other business establishments contaminating public waters. By conducting site surveys, the Group is working to confirm that water is being managed appropriately and to raise awareness of water risks.
Specific Efforts to Reduce Water Use
The IHI Group creates a graph of the monthly water intake at each environmental management center and compares it over time to raise awareness about reducing water consumption. By monitoring the monthly changes in water withdrawal, it expects the data will help the Group discover any leakage quickly.
Chemical Substances
The IHI Group strictly manages the chemical substances used in its plants in order to reduce the risk of soil, water, and air pollution due to leaks, etc. The Group must not only safely manage their use but also in every process, from warehousing to disposal.
The Group prevents leakage of chemical substances during procurement and transport and regularly verifies and inspects the retaining storage walls, deterioration on interior walls, and corrosion of transfer pipes. It regularly repairs equipment with any deterioration or aging found during these inspections.
Each of its plants is updating of Safety Data Sheets (SDS: a document that describes the hazards of chemical substances) in accordance with changes to laws and regulations regarding regulated substances.
Chemical Substances Contained in Products
The IHI Group responds to the addition of regulated substances, changes in control values, and strengthening of rules based on laws and regulations or customer requirements in the case of chemical substances contained in products. The Group aggregates data about the chemical substances contained in products throughout the supply chain and confirms whether any chemicals are prohibited or exceed acceptable levels. It is also furthering a system to provide customers with information on the chemical substances contained in IHI products.
