de Glossar

Turbidity measurement before disinfection

Turbidity measurement  before disinfection

The final step in drinking water treatment is often disinfection. It ensures that no microbiological contaminants such as coliform bacteria (E. coli) are present before the water is fed into the network. At this process step, the turbidity is already rather low. Instruments must therefore measure accurately and reliably detect even the smallest changes in turbidity.

From the raw water intake, all treatment steps are of a physical nature, i.e. the water is processed by means of filtration, decantation or adsorption. However, microbiological contaminants such as E. coli cannot be removed in this way. With high colony counts, these can lead to gastrointestinal diseases and must be removed.

Surface water is always disinfected. It can be carried out by means of ultrafiltration, UV irradiation or chemically. In the latter case, the water is treated with chemicals containing chlorine (HClO, ClO2, rarely Cl2); some waterworks also use ozone.

In some groundwater works, only transport chlorination is carried out to prevent microbiological growth in the pipe network.

The disinfection is cost-intensive and must therefore be controlled efficiently. The turbidity is already low at this process step. The instruments must therefore measure accurately and reliably detect even the smallest changes in turbidity. If the input turbidity is too high, the water is discarded. This ensures the effectiveness of expensive UV systems, for example. However, an ozone system or the addition of chlorine can also be dosed based on the input and output turbidity.

The Customer Benefit

AN_Disinfection_AS_S_CustomerBenefit



The Solution

The AquaScat S is particularly suitable for monitoring the disinfection step. This probe can be used to measure the water directly in the pipe. This avoids wasting water that has already been treated. The ideal solution is two AquaScat S and one SiCon M (control unit).

The first AquaScat S monitors the input turbidity during the disinfection step. If this is too high, the water can be discarded. In Germany, for example, if the turbidity is > 0.2 FNU, the water is not fed into a UV disinfection system, as this would reduce the disinfection performance and increase the maintenance effort. The turbidity limit value can be defined conveniently and intuitively on the SICON M for the first turbidity channel. A signal output (analog, digital, serial) can also be used and fed directly into the control system.

The second AquaScat S monitors the turbidity after disinfection. The good resolution of the devices enables efficiently detect even the smallest changes in turbidity.

Further Practical Measuring Tasks

The measurement task can also be carried out very well with an AquaScat 2 WTM A or an AquaScat 2 P. Both measure the smallest changes in turbidity and are comparable to the AquaScat S in terms of the required specifications.

AN_Disinfection_AS_S
AquaScat S
In-line turbidity measurement for water treatment The AquaScat measures the turbidity of potable water according to IEC 27027 and the temperature, with the measurement carried out directly in the wate…
More Info

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)}}
Leonardo Pio
Responsible for the application: Water, Industrial Processes, Beverages & Food for the regions: AG, LU, NW, OW, VS, BS, BL, SO, BE, FR, NE, VD, GE and JU
Andreas Corradini
Responsible for the application: Water, Industrial Processes, Beverages & Food for the regions: TI, GR, UR, GL, SZ, ZG, ZH, SH, SG, TG, AR and AI Traffic & Environment: whole Switzerland
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