Photooxidation by exposure to visible light

Physico-chemical method for eliminating toxic and/or...

Pitcher type water purifier and purification cartridge for...

Plant and method for purification of water coming from a...

Plant and method for water treatment by...

Plant and process for desalting marine water by reverse...

Plant and process for generating biogas from biodegradable...

Plant for biological purification of waste water

Plant for desalination or purification of sea or brackish...

Plant for processing organic material

Plant for purifying contaminated air

Plant for seawater desalinizing using solar energy...

Plant for the anaerobic purification of waste water

Plant for the treatment of waste water by the...

Plant for wastewater treatment

Plastic coarse bubble diffuser for wastewater aeration systems

Plastic foam filter

Plastisol of non-electrolyte polymer and polyelectrolyte...

Plate-like water aerator

Plating waste water treatment and metals recovery method