Effective use of recycled fuels

Daio Paper Corporation

Outline

We have been promoting advanced use of wastepaper, and we have achieved a wastepaper utilization rate that exceeds the industry average. In order to promote further advanced use of wastepaper, we will take on the challenge of recycling wastepaper with a large amount of foreign matter (plastics such as CDs and DVDs), which is incinerated.
Our proprietary technology automatically separates recyclable paper and plastics. The wastepaper is used as raw material for papermaking. The separated plastics are used as fuel for boilers for power generation as a substitute for fossil fuels. We use energy from waste and reduce greenhouse gas emissions throughout the value chain.

Description

The papermaking industry has long been actively engaged in recycling, such as making recycled paper from wastepaper. Before global warming has been recognized as a worldwide critical issue, we have made effective use and recycled of biomass fuels, such as waste liquor of pulp cooking(black liquor), wood bark, which cannot be used as a raw material, and paper sludge produced when used paper is recycled.
Until now, by expanding the use of wastepaper, which is difficult to use , we have achieved a wastepaper utilization rate that exceeds the industry average. And we have boilers for power generation that use black liquor and paper sludge generated in our mill as fuel. We have also started operation of a biomass boiler fueled mainly by construction and demolition waste, ahead of the industry.
In order to promote further recycling, we will use the wastepaper, which had previously been disposed of as waste, as a raw material for cardboard. Various types of wastepaper are utilized by modifying the dissociation equipment (pulper) and improving and reinforcing the dust removal equipment (screen).
However, wastepaper, which had previously been disposed of as waste, contains many foreign materials, including plastics such as CDs and DVDs which are attached as appendices, vinyl covers, and various laminated products.
Aero Sorter (made by DAIO ENGINEERING Co.,Ltd.), our proprietary technology, can automatically sort wastepaper into paper and foreign matter after crushing it. We will further promote the use of wastepaper, which had previously been disposed of as waste, by recycling waste paper that has been separated into raw materials and foreign materials (plastics) into fuel.
In 2023, we plan to install power generation facilities that can burn plastics of various shapes and compositions (high chlorine) in our subsidiary company, IWAKI DAIO PAPER (Iwaki City, Fukushima Prefecture) ,and reduce purchased electricity and fossil fuels by 59%.
DAIO PAPER Group will continue its efforts to reduce environmental impact through the effective use of recycled fuels.