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EQ TechEQ Tech

SUEZ’s patented electrochemical technologies are designed to optimise treatment processes, removing pollutants, reducing sludge and potentially allowing water re-use.

The technology is simple and robust, and generates “chemical reactions” without the need for chemicals by using electromotive force. The pollutants in the waste water are separated or oxidised into a more biodegradable form.

Electrochemical technologies are able to remove particulate matter and colloids, odours and colours, heavy metals, COD, refractory COD, nitrogen, phosphorus, phenols, oils and hydrocarbons, cyanide compounds, PCBs, pesticides, bacteria, viruses and also the recovery of metals and reusable products.

Effective in oil, chemical, pharmaceutical, metallurgical, automotive, waste (leachates), food and concentrates recovery industries, amongst others. Electrochemical technologies find their real advantage on difficult waters, with numerous advantages over alternative technologies:

Technological:

  • Low sludge generation
  • Multiple pollutant removal
  • In situ/itinerant treatments
  • Treatment of high salinity waters


Process:

  • Operating costs proportional to pollution load
  • Minimal (or zero) consumption of chemicals
  • Effluent recovery
  • Continuous and online treatment for industrial processes
  •  Auto cleaning and low maintenance


Structural:

  • Turnkey solution
  • No civil works
  • Mobile and compact plants

Sean Ashton Contact

Electrocoagulation
Electrocoagulation is based on conventional coagulation but the coagulant is generated in situ. Its main advantages are that it eliminates the majority of chemical reagents and generates much less sludge than conventional processes.

Electrooxidation
Its aim is to oxidise pollutant materials present in water, either by direct contact with the anode, or by oxidation in the media, showing a higher oxidation capacity than other advanced oxidation technologies.

Electroperoxi-coagulation
Electroperoxi-coagulation is based on the fenton reaction. Through the addition of H202, (or its production in situ) plus the Fe2+ generation in the anode, a high oxidising environment is created. It can treat persistent refractory COD that other treatments are not able to.

Electrofenton
In this process the catalyser is added in the form of metal salt and the hydrogen peroxide is generated cathodically. The process can be complemented with the supplementary addition of peroxide.

EQ TECH PILOT PLANT
SUEZ Advanced Solutions have three semi-industrial pilot plants to guarantee the correct operation of the process. The plants allow the optimisation of the CAPEX and OPEX and the adjustment of the operational parameters to be used in the future industrial plant. Very flexible, the plants include different electrochemical reactors and post-separation technologies.

BEUDA LANDFILL (Beuda - La Garrotxa)

  • ELECTROCOAGULATION + ELECTROOXIDATION + ULTRAFILTRATION/REVERSE OSMOSIS
  • LEACHATE TREATMENT
  • 2009

UNITED RESIN (Portugal)

  • ELECTROPEROXI-COAGULATION
  • TREATMENT OF PHENOLIC WATER WITH COD >80,000 ppm
  • 2010

CIPAN (PORTUGAL)

  • ELECTROCOAGULATION
  • TREATMENT OF WATER FROM ANTIBIOTICS MANUFACTURING
  • 2010

CESPA (MADRID)

  • ELECTROCOAGULATION + ELECTROOXIDATION
  • LEACHATE AND RINSING WATER TREATMENT
  • 2011

NISSAN FK (PAMPLONA)

  • ELECTROPEROXI-COAGULATION
  • TREATMENT OF WATER WITH HEAVY METALS AND REFRACTORY WATER
  • 2011

ELECTROCHEMISTRY, ULTRAFILTRATION AND TREATMENT (BELGIUM)

A plant in Belgium, belonging to a Spanish multinational, which produces an additive used to increase the ketone number in diesel fuels. In the light of future reductions in nitrate discharge limits, they decided to take early action, so to comply with the legislation, they invested in electrochemical technology (electroperoxicoagulation) followed by ultrafiltration, thus treating their water with minimum operating costs.

DESIGN AND CONSTRUCTION OF AN ELECTRO-PEROXIDATION PLANT FOR WASTEWATER TREATMENT

Aqualogy built an electro-peroxidation plant, resulting in significant improvement in the quality of effluent, optimisation of sludge production and reagent consumption and optimisation of operating costs in Navarra.

DEVELOPMENT OF ELECTROCHEMICAL TECHNIQUES FOR THE TREATMENT OF CONGENITAL WATER FOR SUBSEQUENT RETURN TO RIVERS, SEAS AND DEPLETED WELLS (PEMEX, MEXICO). 2012

The first experimental plant using electrochemical techniques has been specifically designed to deal with the major water flows managed in the sector.