11
Water treatment units and installations such as filtration,
disinfection, chemical, physical and biological
purification; water conditioning units and installations
such as descaling, anti-corrosion, biocide and biodetergent;
industrial wastewater treatment units and installations
before disposal for regulatory compliance; units and
installations for the treatment of boiler feed water
40
Treatment of water, services for the treatment of water by
the introduction of reagents, particularly of water intended
for human or animal consumption and water for industrial
use; services for the sanitation and treatment of industrial
wastewater; treatment and purification of liquids, in
particular industrial wastewater intended as boiler feed
water
42
Technical project study services for carrying out and
tailoring each type of treatment technique for filtering,
purifying, sterilizing and regenerating all liquids,
especially drinking water, industrial wastewater, boiler
feed water, swimming pool water, urban, household and
industrial wastewater; technical and scientific studies
provided by engineers on treating, purifying and
conditioning water using chemical or biological products;
feasibility, location and sizing studies (engineers'
services) in connection with the operation of water
treatment plants, heating and boiler systems, cooling
circuits, manufacturing sequences; technical audits carried
out by engineers, technical studies in laboratories namely
technical research, engineering consultancy and services in
connection with such processes and equipment and all other
fluid treatments, in particular in the field of industrial
processes