Environmental Report

Co-existence with Nature

As an initiative for coexistence with nature (reducing environmental impact on nature), LINTEC works on water conservation (water use, effluent treatment). We pay sufficient attention to water saving, recovery and reuse, compliance with effluent standards, and effluent water quality.

Reducing Water Usage and Effluent

In fiscal 2022, LINTEC used 7,798,000 m3 of water. Of this amount, around 86% was used by the Kumagaya and Mishima plants, which comprise LINTEC’s Fine & Paper Products Operations. In fiscal 2022, water usage per unit of paper production was 46.60 m3/t, which achieved the target of a 1% reduction on a year-on-year basis.
The next target is a 4% reduction per unit of production by fiscal 2025 from the fiscal 2021 level. To achieve the target, the plants will make continued efforts to reduce water usage and effluent discharge in each process and prevent water leaks.
Moreover, plants that have paper machines are regulated by the Water Pollution Prevention Act. Additionally, the Mishima Plant, sited alongside the Akanoi river in Ehime Prefecture, is regulated by the Act on Special Measures for Conservation of the Environment of the Seto Inland Sea (Seto Inland Sea Act), while the Kumagaya Plant, situated next to the Arakawa river in Saitama Prefecture, is regulated by the Saitama Prefectural Ordinance for Environmental Preservation. Both satisfy effluent standards in their region.

Process from Water Intake to Effluent

Water usage data is calculated by source.

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Category FY2020 (thousand m3) FY2021 (thousand m3) FY2022 (thousand m3)
Total water usage 7,951 7,718 7,798
・Tap water 531 509 540
・Industrial water 3,660 3,715 3,383
・Groundwater 3,760 3,494 3,876
Effluent 6,163 6,630 6,191
  • Note: Water usage data is the sum of the figures for tap water, industrial water, and groundwater.

For detailed data, click here

Standards, methods and preconditions used

Standards, methods and preconditions used

Tap water, groundwater, and industrial water are measured value

Water usage (Kumagaya and Mishima Plants)

Water usage (Kumagaya and Mishima Plants)

Effluent treated (Kumagaya and Mishima plants)

Effluent treated (Kumagaya and Mishima plants)★
  • Total of flowmeter data for effluent treatment equipment installed at the Kumagaya and Mishima plants.

Water Quality Management (Effluent)

Effluent water quality at the Kumagaya and Mishima plants is as follows.

Effluent processing equipment at the Kumagaya Plant
Effluent processing equipment at the Kumagaya Plant

Effluent Water Quality (Fiscal 2022) (Kumagaya and Mishima plants)

Kumagaya Plant

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Item Effluent Water standards Results
Maximum value Average value
pH 7.47 7.07
Regulations on emission concentration SS★1 60(50) or less 42.90 11.73
BOD★2 25 or less 21.00 9.12
COD★3 - 43.20 22.09
Regulations on total emissions COD (t/day) 0.858 or less 0.265 0.121
Nitrogen (t/day) 0.4068 or less 0.1420 0.0023
Phosphorous (t/day) 0.0418 or less 0.0065 0.0007

Mishima Plant

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Item Effluent Water standards Results
Maximum value Average value
pH 5.8~8.6 6.0~7.7 6.77
Regulations on emission concentration SS★1 80(60) or less 44 4
COD★2 90(65) or less 89.2 25.0
Total nitrogen 120 or less 47.1 5.5
Total phosphorous 16(8) or less 0.83 0.04
Regulations on total emissions COD (t/day) 0.9431 or less 0.4945 0.2365
Nitrogen (t/day) 0.3961 or less 0.1990 0.0519
Phosphorous (t/day) 0.0405 or less 0.0014 0.0004
  • ★1SS: Suspended Solids
  • ★2BOD: Biochemical Oxygen Demand
  • ★3COD: Chemical Oxygen Demand

Biodiversity Conservation Initiatives

Upholding biodiversity conservation in the LINTEC Group Quality, Environmental and Business Continuity Policy, the LINTEC Group accordingly conducts biodiversity conservation activities in and outside of Japan.
The Tatsuno Plant in Japan maintains and monitors conservation-listed deep-veined maple trees and uses red robin trees for greening purposes.
We will continue to promote the activities in collaboration with external companies.

Continued observation of deep-veined maple along with size control
Continued observation of deep-veined maple along with size control
Deep-veined maple
Deep-veined maple

The Chiba Plant covered the west wall of its warehouse with a green curtain in June 2022. Vines were seen to grow over four meters in length, as shown in the photo in August. We will continue to promote these activities that are close to us.

Green curtain
Green curtain