Introduction of Our Activities
in Environmental Engineering Field

Masato HOSOYA
23rd August 2023

1. Corporate Profile
KOBELCO’s Business Segment

Materials

Machinery

Profile of Kobe Steel Group
Founded:
September 1, 1905
Net Sales:
USD14,875
mil*1 (FY2021)
Capital:USD 1,792
mil*1 (FY2021)
Affiliate:
212 subsidiaries
50 equity-valued affiliates
Employees: 40,517*2 (As of 31st March 2021)
Profile of Kobelco Eco-Solutions
Founded:June 1, 1954
Net Sales:
USD732 mil*1 (FY2021)
Capital:USD 43 mil*1 (FY2021)
Employees: 2,912*2 (As of 31st March 2021)*1 Ex-rate: JP¥ 140 / USD*2 Consolidated (stand-alone + subsidiaries, excluding affiliates)

ElectricPowerKOBELCO ECO SOLUTIONS CO., LTD. retains copyrights and all other proprietary rights related to this document.

12. Business Profile of Kobelco Eco-Solutions

 Providing EPC service in “water/wastewater treatment” and “waste to energy” field
Centralized
Industrial Waste
Water Treatment

Small-Scale
Water
Purification

Primary Industrial
Waste Water
Treatment

Sewage & Sludge
Treatment
Biomass Utilization

KOBELCO ECO SOLUTIONS CO., LTD. retains copyrights and all other proprietary rights related to this document.

Mid-to Large
WaterPurification

Waste-toEnergy

23. Oversea Business of Kobelco Eco-Solutions★

UKMyanmarVietnamLondon Office
KOBELCO SUPREME WATERENGINEERING CO., LTD.

KOBELCO ECO-SOLUTIONSVIETNAM CO., LTD.

Thailand

Bangkok Project OfficeCambodia

Phnom Penh Office
KOBELCO ECO SOLUTIONS CO., LTD. retains copyrights and all other proprietary rights related to this document.

-HCMC Head Office-Hanoi Branch-Long Duc Factory

★

★ ★
★
Cambodia

SOMA KOBELCO WATER SUPPLYCO., LTD.

34. Model Project of MoE Japan (1) KOBELCO is utilizing MoE Japan’s program “Model Project for Improvement of Water Environment in Asia” for 2 times.

2013～

2015～

2022～

Model Project 1

Actual Project

Model Project 2

Promotion of Textile Dyeing Wastewater
Treatment in Vietnam

Constructed actual Wastewater Treatment
Plant for Dyeing factories, and contributed toimprove water environment in Vietnam

Water Conservation through Wastewater
Recycling in the Dyeing Industry inVietnam

STEP1
Promoted proper “wastewater treatment” for Dyeingindustry

KOBELCO ECO SOLUTIONS CO., LTD. retains copyrights and all other proprietary rights related to this document.

STEP2
Promotion of “wastewater recycling”
for Dyeing industry

44. Model Project of MoE Japan (2) Basic scheme of our model project is as follows.
 With support of MoE Japan, KOBELCO conducted treatment experimentation and investigation.
 The purpose is promotion of appropriate technology and development of dyeing textile industry.
Industrial Park
Dyeing textile company

Treatment experimentation
Study appropriate operation

Supply field
MOE Japan

KOBELCOFund support

KOBELCO ECO SOLUTIONS CO., LTD. retains copyrights and all other proprietary rights related to this document.

55. STEP1 Promotion of wastewater treatment(1) In the Model Project 1, KOBELCO fabricated pilot plant for wastewater treatment,
then, installed the pilot plant in actual dyeing factory and conducted treatment study.
- Optimized treatment process for Dyeing wastewater- Minimized operation cost
PreSedimentation☆Redact organic load
☆Remove SSOxidation
Treatment

BiologicalTreatment☆Redact organic load
☆Reduce color☆Redact organic load
☆Reduce color

FinalSedimentation☆Remove SSChemicalTreatment☆Remove color

KOBELCO ECO SOLUTIONS CO., LTD. retains copyrights and all other proprietary rights related to this document.

6

5. STEP1 Promotion of wastewater treatment(2)

Run1

Run2

Run3

Run4

Run5Target
150mg/L7

5. STEP1 Promotion of wastewater treatment(3)

Run1

Run2

Run3

Run4

Run5Target
50mg/L8

5. STEP1 Promotion of wastewater treatment(4) After implementation of the model project, it has led to nearly 10 actual project orders.
After the study inModel Project

KOBELCO ECO SOLUTIONS CO., LTD. retains copyrights and all other proprietary rights related to this document.

96. STEP2 Wastewater Recycling (1) As a second step, from FY2022, KOBELCO started new model project to promote “Recycle” of dyeing wastewater.
 By promoting wastewater recycling system, the environmental load can be reduced and it contributes to thedevelopment of dyeing industry.

WWConc.
WW

Treated WW

KOBELCO ECO SOLUTIONS CO., LTD. retains copyrights and all other proprietary rights related to this document.

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6. STEP2 Wastewater Recycling (2) KOBELCO fabricated pilot plant for wastewater recycling,
then, installed the pilot plant in actual dyeing factory and conducted treatment study.
TARGET:- Optimize treatment process, including the type of membrane- Minimize operation cost and maximize recycle ratio

KOBELCO ECO SOLUTIONS CO., LTD. retains copyrights and all other proprietary rights related to this document.

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6. STEP2 Wastewater Recycling (3)Run 2EC (μS/cm)

Run 1
1000
900
800
700
600
500
400300200
1000Run 3Target
16-100μS/cm
4/4

4/24

5/14

6/3

6/23

7/13

8/2

Date
EC of Production Water

EC of Raw water

KOBELCO ECO SOLUTIONS CO., LTD. retains copyrights and all other proprietary rights related to this document.

Low Standard

High Standard

126. STEP2 Wastewater Recycling (4)Run 2

Hardness (mg/L)

Run 1
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0

Run 3Target
1.5mg/L

4/4

4/24

5/14

6/3

6/23

7/13

8/2

Date
Hardness of Production Water

Hardness of raw water

KOBELCO ECO SOLUTIONS CO., LTD. retains copyrights and all other proprietary rights related to this document.

Standard

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Japan’s Proposed New Initiatives

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