Effective Use and Conservation of Water Resources
The Yamaha Group has been using wastewater from production processes since the first half of the 1970s, recycling it as cooling water and using a reverse osmosis membrane (RO membrane) device, as well as actively pursuing a policy to prevent leakage. Water consumption in recent years has remained stable at a specific level. Through these and other initiatives, total water consumption in fiscal 2012 was 1.34 million cubic meters, which was on par with the previous fiscal year.
- * Yamaha Corporation Headquarters and factories, and Yamaha Group manufacturing companies in Japan
Facilities that recycle the effluent discharged during wafer production processes were installed at Yamaha Kagoshima Semiconductor Inc. around 1999. This has helped reduce the well-water pump displacement used in pure water production. In addition, the company undertook a complete renewal of all effluent treatment facilities in fiscal 2003 significantly enhancing effluent treatment capacity. As a result, the annual amount of water being reused totals 200,000 cubic meters.
At Yamaha Corporation's Toyooka Factory, RO membranes and ion-exchange resins are used to remove impurities from wastewater discharged during the manufacture of wind instruments. As a result, the Company successfully reuses 70,000 cubic meters of wastewater annually. In addition, steps have been taken to relocate underground tanks and pipes above ground as a part of efforts to prevent well-water leakage used by the Factory.Further, Yamaha started reviewing water supply in line with the shifting of production process for wind instruments from the Yamaha Corporation Saitama Factory to the Toyooka Factory in 2011. Investigations are continuing for more efficient water use.
Reverse osmosis (RO) membrane device (Toyooka Factory)
Yamaha Corporation's Kakegawa Factory has been recycling processed wastewater used by onsite wastewater treatment facilities since fiscal 2004. Steps are being taken to reduce water consumption by reusing 1,000 cubic meters as wet painting booth recycling water annually.
Wet painting booth(Kakegawa Factory)
In line with the relocation and new establishment of the Factory at Xiaoshan Yamaha Musical Instrument Co., Ltd., which manufactures wind instruments and percussion instruments, a newly installed state-of-the-art wastewater treatment facility came online in October 2010. These facilities enable the reuse of wastewater to a level equivalent to pure water. Over 90% of the Factory's wastewater is reused in manufacturing processes. Improvements were made in January 2013 to improve treatment capacity to conform with legal provisions for the inspection and improvement of corporate pollution resulting from electroplating in Zhejiang Province*1.
- *1 Legislation passed in Zhejiang Province aimed at enhancing environmental preservation in electroplating factories. Companies engaged in electroplating processes must conform to 56 items related to environmental preservation system and equipment. Standards for metals such as copper and nickel are stricter than those for general factory wastewater.
Wastewater treatment facility