The concentration of Alkalinity in Sewage samples containing Ammonia/Ammonium is very important for correct Nitrogen removal via Nitrifying bacteria. Alkalinity is consumed in the conversion of Ammonia/Ammonium to Nitrate during the nitrification stage of treatment.
Because most waste waters contain eco harmful Phosphates it is common also to remove phosphorus by use of Ferric or Alum salts. These solutions are highly acidic and hence can strip the natural Alkalinity from the waste samples. To combat this, most plants that dose P removal chemicals will also dose Caustic or Lime to balance the pH value of the sample, and restore some of the lost Alkalinity prior to Ammonia removal.
Alkalinity (Total) in water is the sum of its Hydroxide/Carbonate/Bi-carbonate ion content. The classical detection method involves Titrating to pH 4.3 a known volume of the sample with dilute acid of a given strength, until all of the Alkalinity species in the sample have been neutralised. This detection method is generally unaffected by solids in the samples.
Find out more about how the Tytronics Sentinel Process Titration can help you.
The SENTINEL is also available to measure IRON or PHOSPHATE in the same samples.
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One of the keys to Galvanic Applied Science’s leadership in on-line analysis, is our commitment to consistent and accurate methodology — colorimetry, ISE, colorimetric or potentiometric titrations. Galvanic’s Sentinel™ analysers are easy to operate and maintain, even by novice users. With our expert support team to assist you with custom-configuration and training, you can be assured that your measurements of acids, ammonia, bases, metals, nitrate, phosphate, etc., are always precise … and cost-effective.
Whether you are currently analysing or monitoring liquids or looking to do so, the Tytronics® Sentinel is your first choice in on-line analysis or monitoring.