water treatment chemicals polymer phosphonates salts in netherlands

water treatment chemicals polymer phosphonates salts in netherlands
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  • Which phosphonates can be preconcentrated in a wastewater treatment plant?
  • Successful preconcentration of the phosphonates NTMP, EDTMP and DTPMP from natural waters or wastewaters was achieved using freshly precipitated CaCO 3. Recoveries at the 1 μM level were 95–102% for an influent sample of a wastewater treatment plant. 3.2. Concentrations in the environment
  • What Phosphonates are used in cooling water treatment?
  • We can see that phosphonates are important contributors to water treatment formulas. By far, HEDP and PBTC are the most common phosphonates utilized in today’s cooling water treatment applications. ATMP, while highly functional, is used sparingly due to sensitivity to oxidizing biocides such as chlorine and bromine.
  • Should water treatment professionals use a phosphonate replacement tool?
  • Water treatment professionals have the option of using this tool as a stand-alone replacement for typical phosphonates such as HEDP and PBTC or as a tool to mitigate their use and stretch supply. Michael Standish is Vice President – Water Additives at MFG Chemical, LLC.
  • Are phosphonate chelating agents biodegraded?
  • No biodegradation of phosphonate-chelating agents is observed in the environment. The Fe (III)-complexes are rapidly photodegraded. Rapid degradation of aminopolyphosphonates occurs in the presence of Mn (II). An analytical method for trace measurements in natural waters is urgently needed.