Jan. 2019

Introduction of Our Activity

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COMPANY INTRODUCTION

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Fiscal Year 2017 (Apr. 2017 – Mar. 2018) Group Total Sales: US$ 18,811 million

KOBELCO GROUP

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[Note]Converted at JP¥100.00/US$Amount are before elimination and adjustment for consolidation

Iron & Steel

US$ 7,155 million

Aluminum & Copper

US$ 3,495 million

WeldingUS$ 805 million

MachineryUS$ 1,613 million

EngineeringUS$ 1,228 million

ConstructionMachinery

US$ 3,645 million

Electric Power

US$ 721 millionOther

BusinessUS$ 688 million

Kobelco Eco-SolutionsUS$ 787 million

Wastewater treatment plant

Solid waste treatment plant

Final solid waste landfill plant Water purification plantLeachate 

treatmentThe managed solid 

waste treatment zoneWW treatment

Sludge treatment

Biomass utilization

Solid waste treatment

Water treatment

Industrial water treatment plants

WW treatmentCooling Tower

PCB treatment

Process Equipment

Hydrogen generator

Recycling plant

Process equipment

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Water Treatment Solid Waste Treatment Process EquipmentEngineering Business Domain

Design, Engineering, Procurement, Construction and O&M

of various water treatment plants.

Engineering Business Domain

Design, Engineering, Procurement, Construction and O&M

of various waste treatment plants.

Manufacturing Business Domain

Design, Manufacturing, Sales and Repair of various devices and equipment.

We promote and implement environmental infrastructure projects!We promote and implement environmental infrastructure projects!

Business Domain

Business Expansion in Mekong Region

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★

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Bangkok ProjectOffice

Established in 2018‐ Bangkok 

KOBELCO SUPREME Water

EngineeringEstablished in 2018

- Yangon

KOBELCO Eco‐Solutions VietnamEstablished in 2010

‐ Ho Chi Minh‐ Hanoi‐ Long Duc

Phnom PenhBranch Office

Established in 2015‐ Phnom Penh

SOMA KOBELCO Water Supply

Established in 2018‐ Phnom Penh

Introduction of Model Project for Improvement of Water Environment in

Asia

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Scheme of the project

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Dyeing textile company

MOE Japan KOBELCO

Industrial Park

Supply field

Fund support

Treatment experimentationStudy appropriate operation

Industrialization and environmental protection can coexist by applying appropriate technology and knowhow.MOE Japan and we conducted treatment experimentation and factual investigation for promotion of appropriate technology and for development of dyeing textile industry.

Promotion of Textile Dyeing Industrial Wastewater Treatment in Vietnam

Outline of the project

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1) Object：Promote the industrialization in the dyeing industry and protect 

environment.

2) Applicable technology：a: Biological Treatment b: Physical‐Chemical TreatmentC: Advanced treatment (Ozone, Activated Carbon etc.)

3) Business Modela: EPC model b. Utility management business in the industrial park

Hanoi

Ho Chi Minh

Background of this project (1)

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1) Points of Vietnamese regulationCompare to Japan or other developed country, regulation of Color and Cl is more strict.In addition, regulation of COD and T‐N is also strict.Main difficulties to treat waste water will be Color.

2) Trend of Textile Dyeing industry in Vietnam

There’re 5000 textile companies approximately.

The trading amount is 8% of GDP (17bill$ Sales on 2012)

and ranked top of export amount (15.09bill$ on 2012, 13.2%)

T－NNH4Color

Cl

（－）

20550

6-9

（mg/L）

（mg/L） 500

（mg/L）（mg/L） 150

1,000

4010150

SS （mg/L） 50 100（mg/L）（mg/L）

COD50

75

Items

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Level A Level B

ｐH 5.5-9BOD

Items Value

ｐH （－） 5.5-6.5BOD （mg/L）

－Color

－COD （mg/L） 500-1000SS （mg/L） 50-100

（mg/L） 1,000-2,000

T－N （mg/L） 25-50

Cl （mg/L） －

NH4 （mg/L）

Regulation Characteristic of WW

Background of this project (2)

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3) Problem

Seek the appropriate technology to treatTextile Dyeing waste water in Vietnam

a) There’re approx. 200 IP in Vietnam, however only around 25% of IP have WWTP, or even they own, it is believed that wastewater is not treated properly.

b) Primary treatment has not been managed properly.c) The proper technology to treat color is not applied.

Pilot plant for treatment experimentation

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☆Redact organic load☆Remove SS

Pre‐Sedimentation

☆Redact organic load☆Reduce color

OxidationTreatment

☆Redact organic load☆Reduce color

Biological Treatment

☆Remove SS

FinalSedimentation

☆Remove color

Chemical Treatment

Conducted experimentation by pilot plant

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- Studied process design for appropriate treatment - Optimized treatment for O&M cost reduction

Performance evaluation of each treatment process for various dyeing stuff

- COD / Color reduction effect by biological treatment (MBBR etc.)- Chemical usage and optimization in coagulation sedimentation treatment

(NaOCl, De-color agent, Flocculants, Polymer etc.)

Process optimization and reduction of O&M cost

【MBBR】 【Coagulation】

Result of the project

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Japanese dyeing factory in Vietnam

‐ 2,000m3/day

‐ Biological treatment and Chemical treatment 

After service

‐24hrs O&M service

KOBELCO studied the appropriate treatment process.And it results in ……

Hong Kong textile factory in Vietnam

‐ 130m3/day

‐ Biological treatment, Chemical treatment  

and Activated Carbon 

After service

‐8hrs O&M service

Last but not least

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KOBELCO will keep promoting the treatment technology for industrial waste water,

And contribute development of Asia