BEUDA LANDFILL (Beuda - La Garrotxa)
- ELECTROCOAGULATION + ELECTROOXIDATION + ULTRAFILTRATION/REVERSE OSMOSIS
- LEACHATE TREATMENT
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:
Sean Ashton Contact
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.
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 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.
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.
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.
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.
The first experimental plant using electrochemical techniques has been specifically designed to deal with the major water flows managed in the sector.