Technical coating systems for
Waste water and Desalination
Very low VOC content epoxy-based systems for the waterproofing and protection of concrete and steel works
against premature degradation due to the corrosive nature of the gases emitted by domestic
and industrial waste waters, notably H2S.
Resistance to permanent or temporary contact with industrial effluents and sea water.
Our BIOPERL® range is designed for the waterproofing and protection of both the interior and the exterior components of wastewater treatment plants and of seawater desalination plants (digesters, clarifiers, settling tanks, filters, thickeners, flocculation tanks, storage tanks, manholes, pits, gutters, channels, catch basins, …) as well as of the interior of large-diameter pipes, in new-build and rehabilitation projects.
Simple and quick to clean thanks to their smooth and homogeneous finishing.
Comply with all sanitary and toxicological regulations in force.
Their chemical formulation makes it possible to withstand gases (H2S, methane) and aggressive liquids (seawater, brackish water, industrial water), thus significantly increasing the useful life of protected structures and their performance (digesters for example).
Epoxy resin / glass fabric multi-layer lamination gives the system resistance to existing and future cracking in a concrete substrate of up to 20/10ths of a mm.
Protective coating of a wastewater pumping station
The work consisted of implementing the BIOPERL® protective coating system composed of a fiberglass fabric impregnated and saturated with epoxy resin and applying the BIOPERL® epoxy finish
Our coatings are resistant to permanent contact with aggressive liquids and gases hence providing long-lasting waterproofing and protection for this wastewater pumping station
Cannes Pumping Station, France, 2025
Wastewater Treatment Plant : protective coating of the dome undersides of 3 digesters
The work consisted of implementing the BIOPERL® protective coating system composed of a fiberglass fabric impregnated and saturated with epoxy resin and applying the BIOPERL® epoxy finish
Our coatings are resistant to permanent contact with aggressive liquids and gases, hence providing long-lasting waterproofing and protection to the dome undersides and walls of these 3 digesters
MAERA Wastewater Treatment Plant – Montpellier Metropolis, France, 2025
Protective coating for 4 deodorization towers in a Wastewater Treatment Plant
BIOPERL® system with CHEMPERL® VE/HRC finish
The work consisted of implementing the BIOPERL® protective coating system composed of glass fabrics impregnated and saturated with epoxy resin, and applying the black CHEMPERL® VE/HRC vinylester finish in 4 deodorization towers:
- Tower 1: Acid (pH2)
- Tower 2: Strongly oxidizing base
- Tower 3: Oxidizing base
- Tower 4: H2O rinse
Menton Wastewater Treatment Plant, France, 2024
Wastewater Treatment Plant : protective coating of various new structures
Several structures were protected and waterproofed in this wastewater treatment plant:
- Digesters : underside of roof slab, walls and floors
- Sludge treatment building, mixing tank and homogenization tank, deodorizing plenum : underside of roof slab, walls and floors
- Digested sludge tank : underside of roof slab, walls and floors
- Pumping station : underside of roof slab, walls and floors
- Settler tank : underside of roof slab, walls and floors
More than 2,600 sqm of surfaces were coated using our BIOPERL® epoxy laminated coating system with P45 fiberglass fabric and BIOPERL® finish, thereby contributing to the protection of the local environment
Nîmes Wastewater Treatment, France, 2021
Wastewater buffer storage tank waterproofing: Floor, walls, columns and underside of slab
The work consisted in applying the BIOPERL® waterproofing system composed of a glass tissue impregnated and saturated with resin and the BIOPERL® epoxy finish
Our coatings, which are resistant to aggressive liquids and gases, ensure the watertightness and protection of the floor, walls, columns and underside of the slab of the 5,000 cbm tank
Wasterwater buffer storage tank from the combined sewer system of 5,000 cbm, The Tonneliers, Libourne (33)
Modernization of the Biogaz and Primary Decanting units: underside of domes and tarps coating
Since 1990, BIOPERL® waterproofing and protective coatings have been applied in various structures of the largest domestic wastewater treatment plant in the world, the SIAAP in Achères, for both new construction and rehabilitation, on concrete and steel substrates
More than 200,000 sqm of surfaces were coated in total: protection of the undersides of the digester domes against premature corrosion, waterproofing of tanks, basins, collectors and other structures, thus contributing to the protection of the environment
Wastewater treatment plant, SIAAP Seine Aval – Achères (78), 1990-2022
Digester linings in wastewater treatment plants replacement
Since 2005, BIOPERL® waterproofing products, composed of a glass tissue impregnated and saturated with resin and an epoxy finish, have been used to protect the gas skies of the Farfana and Mapocho digesters in Chile
Wastewater treatment plants
La Farfana and Mapocho wastewater treatment plants, Santiago de Chile, Chile, 2005-2022
Storm water basin, screening channels and grease trap / grit trap waterproofing: floors, walls, ceilings and manholes
BIOPERL® waterproofing products have been used to protect and waterproof several structures in the Saint Gilles urban water treatment plant
This epoxy laminate with glass tissue and resistant epoxy finish coating, seals 2,000 cbm storm basin’ floor, walls, ceiling and concrete manholes; screening channels’ floor and walls and protects a grease trap / grit trap’ floor, walls and ceiling against the aggressive gases of the gas skies
Wastewater treatment plant of Saint Gilles (30) 2018-2019
Underground concrete waste water collector rehabilitation
It is a spray-applied and continuous adherent polyurea resin membrane for the concrete waste water collector’ waterproofing, which reinforces it and making it highly resistant to erosion and impact
Waste water collector, Chlef, Algérie, 2013
Seawater desalination plant waterproofing: floors, walls, columns and underside of slab coating
The work consisted of installing the BIOPERL® waterproofing system composed of a glass tissue impregnated and saturated with resin and applying the BIOPERL® epoxy finish
Our coatings are resistant to chlorides, sulfates, magnesium, calcium, but also to potassium ions and bicarbonates which buffer the excess acidity of sea water
They allow floor, walls, columns and underside of the pool slab’ waterproofing and protection
Seawater desalination plant, Barka, Oman, 2009
Wastewater treatment plant waterproofing: floors, walls, columns coating
BIOPERL® protective and waterproofed coatings composed of an impregnated and saturated glass tissue and an epoxy finish are used for protecting floors, walls, columns digesters
Wastewater treatment plant, Baraki, Alger, Algeria, 2006
