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Removal of recol agents out of waste-water from paper, textile and cork plants.

LIFE96 ENV/P/000603


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Contact details:

Project Manager: José DUARTE HENRIQUES
Tel: 218443624
Fax: 21 8443010
Email: JDHenriques@lnec.pt



Project description:

Background

The objective is to design, build and analyse a prototype of a treatment system which applies membranes and photochemical oxidation processes to treat elements that are difficult to oxidise in industrial waste water in the paper pulp, cork and textile industries. Colloids and other particles in suspension can be treated in the industrial waste water sources under analysis, when technically and financially viable, by subjection to a coagulation/flocculation pre-treatment process, followed by microfiltering and ultrafiltering. The oxidative destruction of residual organic compounds is done by advanced processes of photochemical oxidation, which use both UV radiation and non-chloride (pure oxygen O2, ozone O3, and hydrogen peroxide H2O2) high-energy oxidants. The photochemical oxidation could take place in a homogenic phase if not catalysed, or in a heterogenic phase if solid catalysers are used (primarily titanium dioxide TiO2 and zinc oxide ZnO). When these are used, they will be eliminated from the treated effluent by microfiltration and then recycled. The final result will be an effluent with insignificant colour levels, chlorised organic compounds, DBO5 and DQO, and a lack of second generation toxic or dangerous pollutants, as would be the case if chlorised oxidants were used.


Objectives


Results


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Environmental issues addressed:

Themes

Water - Waste water treatment


Keywords

waste water treatment‚  textile industry‚  paper industry


Natura 2000 sites

Not applicable


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Beneficiaries:

Coordinator Laboratório Nacional de Engenharia Civil

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Project reference LIFE96 ENV/P/000603
Duration 01-JAN-1997 to 30-JUN -2000
Total budget 1,050,310.36 €
EU contribution 485,903.96 €
Project location Lisboa e vale do Tejo(Portugal)

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