Daio Paper is working to create a sustainable recycling-oriented society by planting trees overseas, increasing usage of recovered paper, promoting energy savings, and conserving biodiversity.

Environmental Action Plan

CO2 Emission Intensity

Reduce emission intensity to 0.78 t/t product by the end of FY2030
(Reduce 26% compared to FY2013)

Final Disposal Volume of Industrial Waste

Reduce final disposal volume of industrial waste to
5,000 t

Usage of Hard-to-recycle Recovered Paper

Increase use of hard-to-recycle recovered paper to
140,000 t by the end of FY2030

Absorbing and Storing Carbon Dioxide by Expansion of Forestry Area

In fiscal 2013, 63% of the Group’s total carbon dioxide emissions was absorbed and stored through its sustainable overseas forestry business.

CO2排出量推移
CO2排出原単位推移

Absorbing and Storing Carbon Dioxide by Expansion of Forestry Area

In fiscal 2013, 63% of the Group’s total carbon dioxide emissions was absorbed and stored through its sustainable overseas forestry business.

Trends in CO2 Absorption/Fixation Volume by Afforestation
Percentage of CO2 Emissions Absorbed and Fixed through Overseas Forestation
Overseas Forested Area

Air Quality Data

While the volume of production increased, we increased the use of biomass energy and reduced the use of fossil fuels (heavy oil and crude oil). As a result, we reduced the volume of SOx emissions in FY2016 to 1,183 t/year, which is a 14.8% decrease compared to FY2015.

SOx Emission Volume
NOx Emission Volume

Water Quality Data

Daio Paper Corporation’s Mishima Mill, located on the coast of Seto Inland Sea, and other Daio Paper Group companies such as Otsu Paper Board Co., Ltd., which is located near Lake Biwa, comply with regulations on total allowable emission volumes of COD, nitrogen, and phosphorus.

SOx Emission Volume
SS Emission Volume
Dust Emission Volume
Phosphorus Emission Volume
Volume of Drainage Water Produced
Water Requirement

[COD]Chemical Oxygen Demand
The amount of oxygen required to decompose organic contaminants into carbon dioxide, and signifies the total amount of organic material in the sea. The higher the value, the higher the amount of pollution.

[SS]Suspended Solids
Refers to solid particles that suspended in water. The higher the value, the more cloudy the water is. This is a cause of sediments in water bodies.

Material Flow

Material Flow

Initiatives of the Daio Paper Group Companies

Promoting the Use of Biomass Fuels

We engage in group-wide activities to convert to biomass fuels with lower CO2 emissions.

The Daio Paper Group has been advancing the introduction of biomass boilers fired by fuels derived from waste materials, such as woodchips, paper trash, refuse plastic fuel (RPF), and waste tires.
As a result of the group-wide promotion of a conversion from boilers fired by fossil fuels such as coal and heavy oil to boilers fired by non-fossil fuels, the biomass energy ratio of the Daio Paper Group increased from 37% in FY1990 to 47% in FY2017.

Biomass boiler at Taisei Paper Corporation

◆ Energy Composition Ratio of Fossil-Derived Energy and Biomass Energy

Energy Composition Ratio of Fossil-Derived Energy and Biomass Energy

Scope of data collection: Daio Paper Corporation and production bases of 18 Group companies

Promoting the Use of Natural Energy

Otsu Paper Board Co., Ltd. installed a photovoltaic power generation facility on the roof of its warehouse as part of its environmental efforts, generating 298 MWh of electricity annually and reducing CO2 emissions by 148 t per year.
Iwaki Daio Paper Corporation is working to introduce renewable energy sources with low environmental impact. In line with the reinforcement of its containerboard production facility, which was relocated and rebuilt in August 2014, the company began operating a photovoltaic power generation facility at the end of November 2014. This reduces CO2 emissions by 141 t per year through the generation of 252 MWh of electricity annually.
With the support of the Fukushima Recovery Corporate Location Subsidy, the Fukushima Factory of Elleair Products Co., Ltd. installed a photovoltaic power generation facility on the roof of its warehouse and started operation in January 2017. It is expected to generate 29.1 MWh of electricity annually and reduce CO2 emissions by 16.3 t per year.

Photovoltaic power generation facilities of Otsu Paper Board Co., Ltd.

Photovoltaic power generation facilities of Elleair Product Co., Ltd.

Initiatives for Recycling Waste Materials (Kani Mill, Daio Paper)

Industrial waste such as ash generated from incinerating sludge from wastewater treatment, ash generated by biomass boilers, and sludge generated in the chemical manufacturing process have been recycled mainly into cement raw materials and road bed materials. In addition, we have started to recycle industrial waste into concrete blocks, recycled soil, and sub-materials for steelmaking. As a result, excluding the final disposal (landfill disposal) amount of solid waste, we achieved an industrial waste recycling rate of 98.7%.
Concrete blocks, which are formed by mixing incineration ash and cement and then shaped into cubes, are used as soil retainer blocks to prevent landslides and other disasters. Recycled soil is a certified recycled product, and is made by mixing quicklime and a fixation agent. It is used as an embankment material such as to raise the ground level of low-lying land or the surrounding ground level when constructing roads.

Concrete blocks used to retain soil

Recycled soil used as embankment material

Reducing the Amount of Incinerated Effluent Sludge Ash by Recycling Deinking Sludge into Filler

Deinking sludge, a waste product of deinked pulp production, used to end up as effluent sludge after treatment. However, at Daio Paper Mishima Mill, we are reusing deinking sludge by recycling it into filler (chemicals mixed into paper to achieve higher opacity). In order to reduce the amount of effluent sludge generated, we are working to improve the quality of recycled filler and expand the variety of paper we use recycled filler in.

Recycled filler production facilities

Recycled filler production technology

Regenerative filling process manufacturing technology

We are working to reduce greenhouse gas emissions from the production of recycled filler by reusing carbon dioxide generated in the calcination process, and also reducing the consumption of heavy oil and electricity per unit of output during the calcination process through improving operations and facilities.

Recycling of Industrial Waste through Acquisition of Permit for Industrial Waste Disposal Business (Iwaki Daio Paper Corporation)

Industrial waste (Iwaki City License No.09420116052)
Special industrial waste (Iwaki City License No.09470116052)

<Acceptable Industrial Waste> (Acceptance Capacity)
※Waste that do not contain specified hazardous industrial waste
● Waste acid (including waste acid of pH2. 0 or less): 100 m3/day
● Waste alkali (including waste alkali of pH12. 5 or more): 50 m3/day

<Other Acceptable Waste> (Acceptance Capacity)
※Waste that do not contain specified hazardous industrial waste
Plastic waste: 5,500 t/month
Waste wood: 10,000 t/month
Paper trash: 3,000 t/month
Confidential waste: 4,000 t/month

Recycling of industrial waste through acquisition of industrial waste disposal business (Iwaki Daio Paper Co., Ltd.)
Inquiries for Daio Paper
Thank you for accessing our website.
If you have any inquiries, please click on the button below and proceed to the relevant category.
Inquiries to Daio Paper
Thank you for using our website.
If you would like to contact us, please click on the button below to proceed to the corresponding item.