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Corporate Social Responsibility (CSR)

Waste Reduction Measures

DISCO has been actively carrying out waste-reduction measures since the DISCO Environmental Charter was established in January 1997, with the aim of creating a sustainable society.
We introduced a system to measure the volume of waste (in 43 categories) at our Hiroshima Works in December 1997 and currently conduct waste measurement and management at all our domestic sites.
By being thoroughly prudent in this way, we have managed to reduce the volume of waste and achieve an effective use of resources.
System to measure the volume of waste
Recycling Precious Metal Sludge
One of our activities to reduce waste was to introduce equipment to process plating effluent at our Hiroshima Works in October 2001, when plating effluent then accounted for about 55% of the waste at the Works.
The system includes coagulation processing and sludge dehydration for precious metals, and allows us to recycle around 120 tons of precious metal sludge per year for raw materials. This greatly contributes to our ability to effectively use scarce resources.
Wastewater Treatment System
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