Chemical Substances Management
Complying with PRTR Law
Paints and organic solvents are the primary chemical substances used by Daifuku in its production facilities. The Company manages and controls the usage amounts of special chemical substances on-site as designated under the PRTR Law.*
- *PRTR (Pollutant Release and Transfer Register) Law: A law that requires enterprises to submit a report to their national governing authority specifying the number and volume of chemical substances they are releasing into the environment. This is aimed at voluntary management of chemical substances and the prevention of environmental pollution.
Emission and transfer volume of chemical substances related to PRTR Law
|Emission and transfer (kg)||23,506||18,691||30,010||18,969||27,223||23,765|
Amount of PRTR-related chemical substances handled in FY2018
|Control No.||Chemicals||Transaction Volume||Emission to||Transfer to|
|Air||Public water||Soil||Land||Total emissions||Sewage||Misc||Total transfer|
(Note) Chemical substances of which less than 100 kg is handled are omitted as the amounts are negligible.
Preventing Water Pollution
The Shiga Works, which accounts for approximately 80% of Daifuku’s water consumption in Japan, maintains a 24-hour continuous monitoring system with three wastewater treatment facilities that ensure water quality on par with agricultural water by thoroughly complying with drainage standards established by the Shiga Prefecture Ordinance and Pollution Control Agreement with Hino Town. In addition, we invite neighboring residents and provide opportunities to visit our wastewater treatment facilities and see our thorough water quality management systems, which facilitates good relationships with stakeholders.
We recognize that water pollution is an important issue that broadly affects soil, agricultural produce, living environments, and more. We not only comply with laws and regulations, but also make meticulous efforts to manage and reduce waste water.
Result of final effluent quality measurements in FY2018
Shiga Works (in accordance with the Water Pollution Prevention Act, prefectural ordinances, and the Hino Town pollution control agreement)
|Measurement item||Regulation value||Results|
|Amount of drainage (m3/day)||-||498.9||59.4||367.1|
|pH||6.0 to 8.5||7.7||6.7||7.3|
|SS (mg/ℓ)||20 or less||4.8||0.5||1.0|
|COD (mg/ℓ)||20 or less||2.5||0.2||0.7|
|BOD (mg/ℓ)||20 or less||2.0||1.0||1.3|
|Total phosphorus (mg/ℓ)||1 or less||0.1||0.1||0.1|
|Total nitrogen (mg/ℓ)||10 or less||4.1||0.5||1.3|
*You can scroll horizontally.
(Note) The average value is the weighted average.
Recycling sludge into cement materials
At the Shiga Works' wastewater treatment facility, it is necessary to treat the sludge produced to maintain stable water treatment. The dewatered sludge withdrawn from the facility is treated using a dryer and is turned into dried sludge with 20% water content. This has led to a large reduction in excess sludge as well as a reduction in waste treatment cost. Furthermore, dried sludge is put to good use as a raw material for cement.
Air Pollution Prevention
Based on Ordinance 25, Clause 1 of the Ordinance Concerning the Reduction of Impact on the Air Environment of Shiga Prefecture, the Shiga Works is designated as a "place of business subject to a plan to reduce its environmental impact on the air." We are striving to control and reduce smoke-related air pollutants.
Result of final air pollutant measurements in FY2018
Shiga Works (according to the Hino Town environmental pollution control agreement)
|Sulfur oxide (SOx) (m3N/h)||Dynamos||2.3||0.100||0.060||0.078|
|Nitrogen oxide (NOx) (ppm)||Dynamos||950||820||710||772|
*You can scroll horizontally.
Implementation of Green Procurement Guidelines
As a global enterprise, we believe that our mission is to make environmentally friendly products. Under the motto, "We will not buy, use, or sell any hazardous materials," we formulated our Green Procurement Guidelines in 2005. Following the guidelines, we prioritize the purchase of materials and products that are resource saving, energy saving and reusable.
Compliance with European harmful substance regulations
The entire Daifuku Group focuses on the European REACH regulations.*, and goes to great lengths to visualize and remove any harmful chemicals in its products. The Company continues to offer environmentally friendly products through implementation of Green Procurement Guidelines by looking at its entire supply chain.
- *REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals) Regulations: Companies must register and evaluate the safety of chemical substances contained in the products they manufacture and sell in Europe.
Local production for local consumption at canteens
Since August 2014, a menu using local ingredients is provided every week at the three canteens in the Shiga Works. Plenty of variety is provided, such as the renowned locally produced Hinona turnips and highly nutritious and richly flavored eggs from Eigen-ji. This initiative will continue on as an activity in reducing food mileage, to reduce the amount of CO2 emissions that comes from transport.