Effluent and waste


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Item FY 2017 results FY 2018 results
Achievement of total zero-emissions Landfill rate 0.0%
Percentage of bases achieving target 100.0%
Landfill rate 0.0%
Percentage of bases achieving target 100.0%
Water quality and total wastewater emissions by type of discharge Surface water 5,616,000 m3
Groundwater 0.0 m3
Sewerage 1,114,000 m3
Others 496,000 m3
Surface water 5,470,000 m3
Groundwater 0.0 m3
Sewerage 1,196,000 m3
Others 486,000 m3
Total number of serious leaks and amount of wastewater leaked None None
Total quantity of hazardous waste transported, imported or processed, and percentage of waste that was transported internationally NA NA
Waterways and connected habitats affected by wastewater discharge?locations, size, conservation status, and value of biodiversity NA NA
Each business location

Why is “Effluents and Waste” a critical issue to be addressed?
Explanation of the reason and background

We believe that minimizing the impact of our business activities in Japan and overseas on the environment will lead to sustainable operations. Accordingly, we believe that it is important for effluents and waste to be minimized as much as possible in a form with a low environmental impact.

Vision (attainment goal) / target

Mid-term targets are set for water use in Japan and overseas.
Based on these targets, and after confirming water risks and the status of wastewater, we will improve recycled water use and ultimately aim for a closed system.
We will work to achieve a reduction of 1% in waste materials per unit of waste, and aim for the attainment and maintenance of 100% recycling*1. We will then aim to achieve total zero-emissions*2 at all our production bases.
Specially managed industrial wastes such as PCB, asbestos, chlorofluorocarbons, and mercury, etc., will be appropriately processed in accordance with relevant laws and regulations.
  • 1 100% recycling: Achieve zero final disposal (= direct landfilled amount + incineration disposal amount resulting in ineffective use)
  • 2 Total zero-emissions: Make the direct landfilled amount zero.

Measures for vision achievement

  • We will introduce water recycling facilities, increase recycled water use, and reduce the volume of water discharge.
  • Even in the case of business locations that are legally entitled to have waste disposed of in landfill sites, we will look for and select industrial waste disposal contractors that do not conduct landfilling, and contract with them to undertake recycling processing.
  • The processing of PCB-containing devices will be conducted within the deadline specified by law.
At overseas production bases in areas with high water risks (Thailand and India), closed systems have been introduced at the time of plant construction, and there is minimal water uptake and no water discharge.

Amount of waste material generated at Group companies in Japan and overseas

The amount of waste material generated at all Group production bases in Japan and overseas during fiscal year 2018 increased by 8.8% year-on-year to 37,929 tons.
We have conducted recycling and activities aimed at achieving total zero emissions at all our production bases in Japan and overseas.
We achieved zero emissions at the end of fiscal year 2017 at our four overseas production bases including North America, one of which in North America had been conducting landfilling before. We are maintaining zero emissions in fiscal year 2018 as well.

PCB waste storage and management

Used PCB-containing devices are properly stored and processed according to relevant laws and regulations. During fiscal year 2018, 17.4 tons of PCB-containing devices were processed. We conducted registration of the concerned stabilizers in fiscal year 2016 and are waiting for it to be processed. Partial processing was implemented in fiscal year 2018.
Additionally, we will proceed with implementing proper processing of PCB-containing devices in use.
At the Onomichi Plant, we improved and strengthened water filtration capabilities, worked to stabilize water quality, and succeeded in significantly improving the period of possible repeated use.

Amount of waste material generated at production bases in Japan

The amount of waste materials generated in fiscal year 2018 totaled 16,660 tons, representing a 0.3% decrease year-on-year; the unit base of the generated amount of waste materials (per net sales) improved by 0.3% compared to the previous year.
The processing flow for waste materials at production bases in Japan during fiscal year 2018 was as follows.
1) Excluding general industrial waste
2) Consumer paper manufacturing waste, tree planting material, various consumer waste
In order to prevent improper disposal such as illegal dumping, local audits of all our processing contractors are conducted every year. In fiscal year 2018, a total of 111 audits were conducted including Group companies and 35 audits at overseas factories, and it was confirmed that waste was properly disposed of.
  • Selection of overseas production bases of industrial waste disposal contractors that don’t conduct landfilling
  • Development of low-water-use facilities, and review of and investment in closed systems
  • Formulation of disposal plans for devices that are currently in use which contain low concentrations of PCB
  • Consider increasing the effective recycling value by increasing the ratio of valuables from industrial waste