defr Glossar

The measurement of the concentration of nitrate is of interest at two places in the water circuit: at the drinking water treatment and at the waste water treatment. Waste water treatment plant.

In the first case, the legally prescribed maximum value is presently 50 mg NO3 /l in Germany and 40 mg/l in Switzerland. The continuous measurement is primarily used when the nitrate content is reduced to a certain amount by means of biological or physical-chemical processes. The blending with nitrate-free water also requires a permanent control.

In waste water treatment, nitrate measurement monitors the second stage of the biological elimination of nitrogen, in which the nitrates (resulting during the first stage by the oxidation of ammonia) are reduced to form gaseous nitrogen.

Among the known analytical methods (ion-sensitive electrodes, amperometry, colorimetry), the direct photometrical determination is the only one not requiring reagents. It is therefore best suited for industrial application as a result of its low maintenance requirements.

Index

Contact distribution partner

{{selectedCountry.Name}} {{country.Name}}

Please select your businessarea

{{ba.Name}}

Please select

{{area.Name}}

Please select your businessarea

{{ba.Name}}
{{selectedCountry.Name}} {{country.Name}}
{{vm.getBusinessAreaStringByVendor(vendor)}} {{area.Name}}
{{vm.getBusinessAreaStringByVendor(vendor)}}
René Gehri
Water, Beverages & Food, Industrial Processes
Florian Bodmer
Ihr Businesspartner für Getränke & Lebensmittel:
Für Wasser, Industrielle Prozesse, Verkehr & Umwelt kontaktieren Sie unseren Hauptsitz.

Your distribution partner for beverages & food:
For water, industrial processes, traffic & environment please contact our headquarters

Ihr Businesspartner für Getränke & Lebensmittel:
Für Wasser, Industrielle Prozesse, Verkehr & Umwelt kontaktieren Sie unseren Hauptsitz.

Your distribution partner for beverages & food:
For water, industrial processes, traffic & environment please contact our headquarters

Contact headquarters

Felix Joller
Sales Manager ScrubberGuard
Öffnungszeiten:
Montag–Freitag 08:00–12:00 und 13:30–17:00
Feiertage & Betriebsferien:
Seppitag: 19. März 2024, Ostern: 29. März – 01. April 2024, Auffahrt: 09. Mai 2024, Pfingstmontag: 20. Mai 2024, Fronleichnam: 30. Mai 2024, Bundesfeiertag: 01. August 2024, Maria Himmelfahrt: 15. August 2024, Allerheiligen: 01. November 2024, Maria Empfängnis: 08. Dezember 2024, Betriebsferien: 24. Dezember 2024 – 02. Januar 2025
Opening hours:
Monday–Friday 08:00am–12:00pm und 1:30pm–5:00pm
Public & company holidays:
St Joseph's Day: 19. March 2024, Easter: 29. March – 01. April 2024, Ascension Day: 09. May 2024, Whit Monday: 20. May 2024, Corpus Christi: 30. May 2024, Federal Holiday: 01. August 2024, Assumption Day: 15. August 2024, All Saints Day: 01. November 2024, Conception of Mary: 08. December 2024, Company holidays: 24. December 2024 – 02. January 2025