01
Chemical products and biological agents for water treatment,
drinking water treatment, sludge treatment and waste water
treatment, and for water purification, drinking water
purification, sludge purification and waste water
purification; chemical products and biological preparations
for the odor treatment of waste water and sewage sludge;
cultures of microorganisms for water treatment, drinking
water treatment and waste water treatment and for water
purification, drinking water purification and waste water
purification
42
Process engineering consultancy in the field of design of
water treatment, water purification, drinking water
treatment, drinking water purification, sludge treatment,
sludge purification, waste water treatment and waste water
purification installations; carrying out chemical and
biological analyzes of waste water and drinking water;
carrying out chemical and biological analyzes of waste water
and sewage sludge
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