Electro Chemical techniques (EC) combined with UV irradiation … · 2015-12-18 · Electro...

Electro Chemical techniques (EC)

combined with UV irradiation

for the treatment and reuse of textile dyeing

wastewaters: industrial marketing

Coordinator: Partners: Carmen Gutiérrez-Bouzán

EuroMediterranean Conference on Digital integration, energy and resource efficiency: Krakow, 27-28 April 2015

1. INTRODUCTION

2. DESCRIPTION OF THE TECHNOLOGY

3. OBJECTIVES

4. ECUVal: OVERALL INFORMATION

5. CONCLUSIONS

INTRODUCTION

ECUVal:

Treatment and reuse of water

70% of Earth is water

INTRODUCTION

Only 1% of

fresh water

is available

Only 2.5% is fresh water

INTRODUCTION

TEXTILE:

Do you know the water

consumption to produce

1Kg of a textile product?

INTRODUCTION

TEXTILE:

water consumption

Up to 100 L/Kg

Finished product

INTRODUCTION

Distribution of textile finishing production in Europe

Poland

Germany

France

INTRODUCTION

Textile fibres

Preparation

of fibres Spinning Weaving

Dyeing, Printing and

Finishing Clothing

Textile product

Dyeing and finishing effluents:

• Coloration

• Salinity

Main environmental problems of textile effluents:

Textile process chain:

73% of total

consumption

INTRODUCTION

Biological treatments:

Discharge of textile affluent

in the biological plant

Tertiary treatments

are necessary

Dyes: non

biodegradable

INTRODUCTION

Treatments for colour removal

Physico-chemical methods

-Additional treatment required

- Sludge production

- Regeneration of adsorbent

Chemical oxidation methods

- Expensive

- Operacional trouble

Enzymatic methods - Under research

Biologic treatments Inefficient results

Electrochemical methods

- Operate at smooth conditions

- Simple and clean

- The electron is the only reagent

INTRODUCTION

Electrochemical treatments

ELECTROCHEMICAL METHODS

Electrocoagulation

Reduction

Oxidation

Direct

Indirect oxidation

With active chlorine

Without UV radiation

With UV radiation:

posterior Electro-Fenton

Photo-assisted

Photo-Fenton

Heterogeneous photo-catalysis

(Oxidation) 2Cl- Cl2 (aq) + 2e-

(Reduction) 2H2O + 2e- 2OH- + H2

(Hydrolysis) Cl2 (aq) + 2OH- H2O + ClO- + Cl-

(Mineralisation) Dye + ClO-/ Cl2 (aq) dye fragments CO2 + H2O + Cl-

DESCRIPTION OF THE

TECHNOLOGY

Proposed solution

Photo-electrochemical

system

Electrochemical reactor:

• cell (reactor with electrodes)

• electric power suppy

• oxidation of dyes

Addition of UV irradiation:

• to increase dyes degradation

• to avoid generation of undesirable by-products

Previous results

• Colour removal

• Reuse of

water and salts reference

reused

DESCRIPTION OF THE

TECHNOLOGY

State of the development

Lab. Pilot 1 L Semi-Industrial Pilot 400 L

Good correlation

between lab and

semi-industrial pilots.

5 National projects

Basic research

Regional project

Semi-industrial

2 patents

DESCRIPTION OF THE

TECHNOLOGY

OBJECTIVES

Development Industrial pilot (4m3/h)

Validation

Market study

Commercialization

First Application and

market replication

Execution:

30 months (Jan.2015-July 2017)

Total budget:

1.476.511€ €

EC (EASME) co-funding:

Next step

OBJECTIVES

Development of the Industrial Pilot: Process

OBJECTIVES

REUSE OF: 70% of dyeing water 60 % of electrolyte

NEW DYEINGS INTO

THE ACCEPTANCE LIMITS

SAVING OF:

Physico-chemical treatment to remove

colour

REDUCTION OF Wastewater discharge

Effluent salinitiy

Treatment,

reuse,

Validation,

Market study and

Commercialization

Reuse of effluents

decoloration dyeing

ECUVal: OVERALL INFORMATION

CONSORTIUM UPC - INTEXTER:

Coordination.

Design and development

LCA analysis

FITEX:

Business plan.

Dissemination activities.

ICOMATEX:

Manufacturer.

Exploiter of the technology

GRAUSA:

End user.

Validation

UPC Technical Coordination

UPC Project Coordinator

FITEX Business Plan & Exploitation

Coordination

ICOMATEX ECUVal Cell Engineering

GRAUSA ECUVal Cell Validation

ICOMATEX ECUVal Cell Manufacturer

GRAUSA ECUVal Cell End - User

M 1-30 WP1: Project Management & Coordination

WP2: : Preparatory Actions

REQUIREMENTS

WP3: Industrial Implementation M18-27

WP4: System Validation M 16-26

M 1-30 WP 6: Dissemination Activities

WP5: Business Plan & Explotation M 1-30

VALIDATED

PROTOTYPE

PROTOTYPE (M18)

CONCLUSIONS

ADVANTAGES OF THE TECHNOLOGY:

Dyes degradation in the dyeing bath

Reuse of salt

No addition of chemical compounds

No residues formation

Possible decoloured effluent reuse

Saving of 70 % dyeing water and 60% salt

Succesive reuses

CONCLUSIONS

INDUSTRIAL SECTORS:

Generation of non degradable compounds

Receptors of green technologies (reuse of

water…)

Market: potential users

Textile

Sector

Chemical Sector

Possibilities as complement of

biologic treatement Validated

CONCLUSIONS

THANK YOU

FOR YOUR ATTENTION!!

Electro Chemical techniques (EC) combined with UV irradiation … · 2015-12-18 · Electro...

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