Natural Resources & Renewable Energies Laboratory (NRRE) Chemical Process & Energy Resources Institute (CPERI) Centre for Research & Technology Hellas (CERTH) http://www.certh.gr

Laboratory of Inorganic Materials (LIM) Chemical Process & Energy Resources Institute (CPERI) Centre for Research & Technology Hellas (CERTH) http://www.certh.gr

For more information about the NHPON research project please contact us:

Natural Resources & Renewable Energies Laboratory (NRRE)Chemical Process & Energy Resources Institute (CPERI)Centre for Research & Technology Hellas (CERTH)6th Km Charilaou - Thermi RoadP.O. BOX 60361 GR - 570 01Thermi, ThessalonikiGREECE

Prof. Karabelas J. Anastasiostel. +30 2310498181fax. +30 2310498189e-mail: karabaj@cperi.certh.gr

TEMAK S.A. Water Treatment / Flow Control Equipment http://www.temak.gr

Budget: 480,000€Co NSRF: 374,400€

Project duration: 05.01.2011-05.01.2014

NHPON research project is supported by The Greek General Secretariat for Research and Technology, Ministry of Education, through the programme EPAN-II/ESPA: “SYNERGASIA”, project 09-SYN-42-630.

Development of novel equipment for electrochemical oxidation of

organic pollutants in water, based on catalytic nano-particles

The “cleaning” power of electro-Fenton

Technical Features Innovative Aspects & Competitive Advantages

NHPON research project

NHPON partners

The novel treatment technology is based on an advanced electrochemical oxidation method (electron-Fenton

technology) implemented in a “filter”, comprised of pairs of porous anodic and cathodic electrodes. The electro-Fenton process takes place through the efficient production of hydroxyl and hydroperoxyl radicals by the electrodes, which are continuously produced by supplying a low voltage direct current to the system. Under these conditions, all synthetic organic compounds (SOC) (e.g. pesticides, dyes, pharmaceuticals, personal care products) present in the filtered water are oxidized by the highly active (but short-lived) radicals generated in situ within the system.

Carbon felt (CF-1410)Specific surface area: 1410m2/gr

Carbon fiber(CF-1371)Specific surface area: 1371m2/gr

C

A

T

H

O

D

E

2O2

O2

2Η+

O2

(anode)

Η2Ο2

Η+

Fe2+

Fe3+

·OH

·OH

O2

O2

·OH

O2

ring opened products

H2O + CO2

Ar(OH)n

·OHArOH

Ar

RH

H2O

further reactions

R·

Η2Ο

e-

2e-

C

A

T

H

O

D

E

2O2

O2

2Η+

O2

(anode)

Η2Ο2

Η+

Fe2+

Fe3+

·OH

·OH

O2

O2

·OH

O2

ring opened products

H2O + CO2

Ar(OH)n

·OHArOH

Ar

RH

H2O

further reactions

R·

Η2Ο

e-

2e-

Coconut Carbon Block (CCB-470)Specific surface area: 470m2/gr

0.0

0.2

0.4

0.6

0.8

1.0

0 50 100 150 200 250 300 350

Electrolysis time (min)

C(t)

/Cfe

ed)

Diclofenac oxidation, C(0)=5800μg/L

Cathode: CF-1410 Fe/C 30%

0

2

4

6

8

0 50 100 150 200 250 300 350Electrolysis time (min)

TO

C (m

g/L)

Diclofenac oxidation, C(0)=5800μg/L

Cathode: CF-1410 Fe/C

High SOC destruction efficiency and mineralization

No chemical consumption

Minimal energy consumption

Easy scale-up of the device

Reduced cost

No secondary pollution

Protection of human health and of the aquatic environment

Multi-layer electrode filter with pairs of anodes and

cathodes

Impregnation of iron-catalytic nanoparticles in the

porous cathodic electrodes

Application of low current DC