Water/Wastewater

  • On-line UV-Vis alert analyser for on-line water chemical quality monitoring of BOD / COD / TOC / TSS and Nitrates

On-line UV-Vis alert analyser for on-line water chemical quality monitoring of BOD / COD / TOC / TSS and Nitrates

Jul 10 2019 Read 306 Times

Water is largely transparent to ultraviolet and visible light. Aqualabo’s STAC2 analyser measures the absorbance of ultraviolet light, at a broad range of wavelengths. Organic content of the sample stream absorbs UV light, and thus the measurement of UV absorbance provides an adequate indication of the organic concentration in the sample.

It thereby creates a unique fingerprint of the water. The STAC2 absorbance signal can be correlated using different chemical methods such as BOD/COD/TOC and nitrates by applying a mathematical adjustment factor or gradient to the measured value.

If the water source changes, the correlation gradient may also change. The STAC2 has the flexibility to use 4 different streams and to combine this with up to 10 different models per sample stream.

As UV absorbance may be affected by the turbidity content of water, the STAC2 analyser does compensate for this.

The STAC2 scans and measures the entire absorption spectrum and creates a unique fingerprint from the sample. STAC technology is used by many customers worldwide as a vital decision making tool in their water quality monitoring. The STAC2 is the only analyser in the world that can measure and analyse a multitude of organic substances without using reagents.

The STAC2 analyser is a technologically advanced instrument, able to be connected to an Ethernet or WIFI network.

There is no screen on the instrument itself, and the human interface is based on an embedded Web page, which users can access via the network. This Web Page enables the customer to manage the entire configuration, status and results of the STAC2.

The STAC2 uses innovative and patented technology to estimate organic matter (BOD, COD, TOC) content, assess the TSS level and measure nitrate concentration. It will check and detect undesirable substances (pesticides, aromatic hydrocarbons, etc.) and handle industrial applications such as high level chloride or organic chemicals.

With STAC2 users can monitor water quality with continuous multiparameter and nitrate analyses for surface water (rivers, lakes, and
reservoirs). The analyser is ideal in the event of accidental pollution, especially for organic contaminants, municipal or industrial
Wastewater Treatment Plants (WWTP) disruption. STAC2 will also monitor influents and effluents for WWTPs. As with surface waters,
STAC2 can monitor water pollution (BOD, COD, TSS, NO3-) and water quality.

The STAC2 analyser is a technologically advanced instrument that connects to an Ethernet or WIFI network. The Web platform enables you to visualise your data in table or graph format, export your data on an external USB storage stick, set up fluid, sequential sampling and
measurement parameters and set up WIFI and Ethernet connectivity parameters.

Data is saved every 15 minutes (editable by the user). It is possible to see the measurements tables or graphs (time scale modifiable by users: day, week or month).

Reader comments

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.

Post a Comment




Digital Edition

International Environmental Technology June 2019

June 2019

In This Edition Business News - Gasmet Technologies acquires MonitoringSystems GmbH - Royal sponsorship for World Soil Museum - CDS Analytical acquires the rights to Empore™ products G...

View all digital editions

Events

DXC 2019

Aug 05 2019 Lombard, IL, USA

APBE 2019

Aug 16 2019 Guangzhou, China

World Water Week 2019

Aug 25 2019 Stockholm, Sweden

Sensor China

Sep 02 2019 Shanghai, China

Aquatech Mexico

Sep 03 2019 Mexico City, Mexico

View all events