Water & Environment
 
     
 
  • General
  • APHA, Hazen & Pt/Co
  • Chlorine / ClO2
  • Ozone

In-line concentration, color and turbidity analyser for COD, BOD, TOC, chlorine, chlorine dioxide, ozone in water environment

Kemtrak photometers are ideally suited to the needs of water & environmental monitoring.


Water & Environmental applications include:

Platinum-Cobalt (Pt-Co) / Hazen / APHA color

  • Platinum-Cobalt (Pt-Co) / Hazen / APHA color
    scale according to ASTM D 1209,
    BS 5339:76 (1993), DIN 53409 and
    ISO 6271-1:2004(E)
  • Direct real time measurement of water color
  • High resolution measurement
  • Automatic cleaning
  • No maintenance

The Platinum-Cobalt (Pt-Co) color scale measures the “yellowness” of a liquid and is well suited for quality control and contamination detection. The Pt-Co scale is used to evaluate pollution levels in waste water and for drinking water quality control and regulation. The Pt-Co scale can also be used to measure and control the concentration of iron in groundwater.

This test method is specific to the color yellow and is based on dilutions of a standard platinum cobalt solutions as defined by ASTM designation D1209 "Standard test method for color of clear liquids (Platinum-Cobalt Scale), International Standard ISO 6271-1:2004(E) "Clear liquids - Estimation of color by the platinum cobalt scale" and BS5339:76 (1993) "Measurement of Color on Hazen Units / Platinum-Cobalt".

Additional application areas for the Pt-Co / Hazen / APHA color scale include polymer additives, resin solutions, and solvents such as hexane, glycerol, methanol, mineral oils etc.

The Kemtrak DCP007 is a maintenance free industrial photometric analyzer that can accurately monitor water color from highly polluted waters (>1000 Pt/Co units) down to clear liquids at <1 Pt/Co units.

The Kemtrak DCP007 uses a long life solid state LED light source with robust industrial grade fiber optics to deliver a measurement with very high precision. Thanks to a proprietary dual wavelength four channel measurement technique, high concentration to ppm trace analysis is no problem.

 

Platinium Cobalt APHA Hazen scale

The Kemtrak DCP007 uses a reference wavelength to compensate for turbidity and/or fouling of the optical windows providing accurate measurements with low drift and long term calibration stability.

Hazen, platinum cobalt, Pt/Co, Apha  drinking water colourHazen color Application Note

Hazen, platinum cobalt, Pt/Co, Apha  drinking water customer success Customer Success Story - Hazen Color

DCP007 Product Brochure

In-line liquid and gas color, concentration and turbidity measurement - Kemtrak industrial process fiber optic photometer

Chlorine dioxide information sheetHazen, platinum cobalt, Pt/Co, Apha  drinking water colour

 

Chlorine (Cl2) and chlorine dioxide (ClO2) are important chemicals for water purification, in disinfectants, and in bleach. They are used as biocides in many industrial water treatment applications including cooling towers, process water and food processing.

Chlorine dioxide has a strong absorption between 350 and 450nm that the Kemtrak DCP007 can measure – from ultra low parts per million concentrations when used for gas detection or disinfection, to high concentration solutions used for the bleaching of pulp (>10 g/L).

The Kemtrak DCP007 can be used to optimize the reaction efficiency of ClO2 generation, improve the control of vent-gas scrubbers to reduce emissions into the atmosphere and for monitoring the final concentration of chlorine dioxide product sent to the bleaching plant.

Chlorine dioxide is an aggressive chemical substance – all wetted parts of the Kemtrak DCP007 flow cell are manufactured from corrosion resistant materials, such as PTFE, titanium, hastelloy, monel and sapphire.

Ozone is a powerful oxidizing agent used to kill microorganisms in air and water sources. Many municipal drinking water systems kill bacteria with ozone instead of the more common chlorine.

Ozone strongly absorbs at wavelenghts below 400nm (UV) that the Kemtrak DCP007 can easily measure. The Kemtrak DCP007 uses a long life high performance UV LED light source with robust industrial grade fiber optics to dl drift and noise-free measurement with very high precision.

A proprietary dual wavelength four channel measurement technique and advanced digital electronics design allows deep absorbance measurement to 5 AU. A range of shorter
optical pathlengths allow for deeper absorbance measurements. Automatic compensation for sample turbidity and/or fouling of the optical windows ensures trouble free operation.

In-line liquid and gas color and concentration measurement - Kemtrak DCP007 industrial process fiber optic photometer

 
     
 

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