(C)2008 DOWA Holdings Co., Ltd.

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• DOWA Group CSR
  • DOWA CSR
  • Greeting
  • What is Social Responsibility of DOWA?
  • Feature I Contribution to Earth’s environment
  • Aiming for No. 1 in Asia
  • Measures to Fight against Global Warming from Wastes
  • Feature II Fostering Rich Forests and Living Creatures
  • Fostering Rich Forests
  • Purify Water and Fostering Living Creatures.
  • Our Efforts towards Conservation of Biodiversity in Mine Development
  • What’s DOWA?
  • We Support the Infrastructures of the Resource Recycling Society.
  • DOWA Metals & Mining
  • DOWA Eco-System
  • DOWA Electronics Materials
  • DOWA Metaltech
  • DOWA Thermotech
  • As an Public Institution
  • CSR Guideline
  • Basic Environmental Policy
  • Management System
  • Environmental & Social Goals and their Present Statuses
• Social Performance
  • Relationship with Society
  • Relationship with Customers
  • Relationship with Employees
• Environmental Performance
  • Environmentally Conscious Business Management
  • Entire Overview of Business Activities and Environmental Load
  • INPUT
  • OUTPUT
  • Contribution to Global Warming Measures through Destruction of Chlorofluorocarbon
• Economic and Business Management Performance
  • Economic Report
  • Environmental Accounting
  • External Economic Benefit Evaluation EEBE(R)
• Business Overview
  • Corporate History and Environmental Commitment
  • Basic Requirements and Target Organization
  • Questionnaire Resulte

Environmentally Conscious Business Management

OUTPUT

Prevention of Air Pollution

Exhaust emissions in 2008 was 7.472 billion m3 (7.461 billion m3 in Japan and 10.5 million m3 outside of Japan), which was a decrease of about 10% compared to last year domestically.

Emission of nitrogen oxide domestically increased by 6.2% compared to last year, while sulfur oxide and ash dust also decreased compared to last year.

Prevention of Water Pollution

Quantity of waste water discharge in 2008 was about 125 million m3 (125 million m3 in Japan and 3,300 m3 outside of Japan).

To protect water resources, we strive to reduce waste water discharge by promoting recycling of water and process improvement, which has resulted in about 2.2% decrease of discharged water in 2008 compared to last year.

Emission of BOD (biochemical oxygen demand) in Japan decreased by 24% compared to last year, while COD (chemical oxygen demand) increased by 4.2%.

Control of Chemical Substances (those targeted for PRTR)

We endeavor to reduce disposal of substances targeted by the PRTR (Pollutant Release and Transfer Register) law in each of our plants, based on the law concerning assessing the discharged amount of special chemical substances and promotion of improving their management.

In 2008 we improved the processes in Kosaka Smelting and Refining, significantly reducing the amount of antimony, lead and arsenic.

Unit:ｔ

Cabinet order no.	Name of Class I chemical substances	Discharged amount				Transferred amount
		Atmosphere	Water area	Soil	Landfill within our own property	Sewage system	Outside of each business establishment
1	Water-soluble compounds of zinc	-	6	-	-	-	26
16	2- amino ethanol	-	-	-	-	-	0.3
25	Antimony and its compounds	0.1	0.3	-	120	-	1
43	Ethylene glycol	-	0.05	-	-	-	5
47	Ethylenediaminetetraacetate	-	0.1	-	-	-	22
60	Cadmium and its compounds	0.03	0.04	-	71	-	-
63	Xylene	0.3	-	-	-	-	7
64	Silver and its water-soluble compounds	0.1	0.1	-	7	-	0.2
68	Chrome and trivalent chrome compounds	-	-	-	4	-	1
85	R-22	-	-	-	-	-	4
89	Toluene	5	-	-	-	-	-
100	Cobalt	-	-	-	-	-	4
108	Inorganic cyanogen compounds	-	-	-	-	-	0.01
121	R-12	-	-	-	-	-	3
175	Mercury and its compounds	-	0.0003	-	1	-	-
178	Selenium and its compounds	0.1	0.2	-	10	-	-
198	1.1.5.7- tetraazatricyclo	-	0.04	-	-	-	225
207	Water-soluble copper salt	-	0.4	-	-	-	22
217	R-11	-	-	-	-	-	9
227	Toluene	-	-	-	-	-	10
230	Lead and its compounds	0.3	0.01	-	1,100	-	31
231	Nickel	-	0.02	-	-	-	58
232	Nickel compounds	-	-	-	-	-	0.02
243	Barium compounds	-	-	-	-	-	16
252	Arsenic and its inorganic compounds	0.1	0.01	-	665	-	2
253	Hydrazine	-	-	-	-	-	1
283	Hydrogen fluoride and its water-soluble salt	1	28	-	-	-	-
304	Boron and its compounds	-	7	-	-	-	11
311	Manganese and its compounds	-	7	-	-	-	1.028
Unit:mg-TEQ
179	Dioxine	0.07	0.004	-	-	-	14.03

 

□ Our Main Efforts towards Proper Control and Reduction of the Substances Targeted for the PRTR

• To set up and manage voluntary control standards that are stricter than the legal standards (Eco-System Sanyo)
• To reduce lead by switching to production methods/processes that discharge less substances targeted for the PRTR (New Nippon Brass)

Wastes

2008年Wastes generated in 2008 were about 359,000 t (359,000 t in Japan and 0.1 t outside Japan), a decrease of 32% compared to last year. This is due to significant decrease of slag as a result of installation of a new smelting and refining facilities in Kosaka Smelting and Refining.

Wastes consisted of 89% of industrial wastes and 11% of general wastes (business-related). Industrial wastes mainly consisted of sludge (26%), burnt residues (25%), slag (20%) and ash dust (11%). We strive to make improvement and changes by recycling byproducts from our production processes, improving processes and yields as part of our efforts to reduce wastes.

 

Recycling

In 2008, volume of recycling amounted to 495,000 t (495,000 t in Japan and 0.6 t outside Japan), a decrease by about 23% in Japan compared to last year. This is mainly due to the decreased disposed soil or iron scraps.

Recycling consisted of recycling of materials (91%) and thermal recycling (9.1%). The materials recycled were mainly soil (69%), gypsum (18%) and metals (7.1%). Thermal recycling consisted of shredded dust (71%) and waste plastics (7.9%).

Greenhouse gases

Emission of greenhouse gases from the entire DOWA group in 2008 was 1.246 million t (1.239 million t in Japan and 7,300 t outside Japan), a decrease of 3.3% domestically compared to last year, while specific emission per sale increased due to the metal price drop.

DOWA Metal Mine has the largest emissions and the next is DOWA ECO-System sharing a large amount of emissions.

On the other hand, greenhous gas is mainly through electricity consumption, accounting for 52% of all emissions.

Emission of CO2 generated from incineration of wastes from outside sources in connection with the environmental business activities accounts for a large amount of our emissions. Annual CO2 emissions caused by wastes from outside sources accounts for 400,000 t since 2004. This type of emission is very difficult to control on the entrusted side. Therefore, we strive to promote thermal recycling using heat generated from burning wastes and use the steam generated for effective use of recycled energy.

We also eliminate ozone-destroying CFC and other CFC substitutes including HFC and PFC that cause global warming, while utilizing the heat generated from burning these wastes. We are also promoting installation of invertors in machines and processes we use, switching part of the fuel we use to natural gas, and introducing of solar power generation equipment.

Furthermore, we encourage modal-shifting of transport to railways and vessels that emit less CO2, more effective collection and delivery of shipments and introduction of low emission vehicles.

□ Our Efforts towards Prevention of Global Warming

Energy saving activities	◯Control of the output and RPMs of equipment　　 ◯Production system　　　 ◯Improvement of production efficiency ◯Switching to high-efficiency lighting equipment ◯Introduction of the control by inverter　　 ◯Implementation of power generation from wastes.
Introduction of renewable energy	◯Solar power generation ◯Purchasing of green electricity (solar power generation) ◯Introduction of a heating system using pellets
Switching to energy that produces less greenhouse effect	◯Switching from LPG to electricity ◯Switching from gasoline and Bunker A fuel to natural gas
Activities related to transportation	◯Switching to transportation by ship or railways ◯More efficient collection and delivery ◯Introduction of low emission vehicles (electric, hybrid and low fuel efficient vehicles)
Other efforts around our workplaces	◯Heat insulating coating on the roofs of plants ◯Turning light off when nobody is there and conduct energy-saving patrols ◯Control of air conditioning temperature settings ◯Stop engine idling

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