07
Installations intended for energy production; installations
intended for the recycling of waste (processing into
energy)
11
Installations intended for water purification, water
distribution, waste treatment (transformation into energy,
especially by methanization); installations intended for the
purification of gas; installations intended for the
distribution of energy in the form of gas, heat, cold,
electricity or fuel; apparatus for the fermentation and
digestion of pollutants; heating and lighting apparatus;
heating boilers; gas scrubbers (parts of gas
installations); control and safety accessories for gas
apparatus; regulating and safety accessories for water and
waste treatment apparatus
37
Installation, maintenance and repair of installations
intended for water purification, water distribution, waste
treatment and energy production; installation, maintenance
and repair of installations intended for the purification
and storage of gas; installation, maintenance and repair of
installations intended for the distribution of power in the
form of gas, heat, cold, electricity or fuel; installation,
maintenance and repair of apparatus for the fermentation and
digestion of pollutants; installation, maintenance and
repair of installations intended for the recycling of waste
and polluted water
40
Water and waste treatment services (processing);
decontamination of urban and industrial effluents; recovery
of waste and polluted water; sorting of waste and effluents
(processing); processing of waste and pollutants into
energy; production of energy from natural gas, biogas, fuel
gas, hydrogen; production of energy in the form of cold,
heat, electricity or fuel; production of mechanical energy;
operation of water treatment plants, waste processing
installations and energy production plants; information in
connection with water treatment, waste processing and energy
production
42
Technical studies and design of water pollution control
installations, waste processing installations and energy
production plants; engineering and appraisals concerning
water treatment, waste processing and energy production;
rental, maintenance, development and updating of computer
software (for managing installations) for water treatment,
waste processing and energy production; research and
development of new products for others in the field of
energy and the environment
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