SIGMA presents its new wastewater laboratory

September 20, 2021

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In August 2020, the SIGMA Group moved to new facilities in the Pont-Xetmar Industrial Estate in Cornellà de Terri, Girona, where it also created SIGMA LAB, a new wastewater laboratory.

SIGMA LAB is an in-house laboratory where wastewater samples are received for various types of tests and analyses. The results obtained are used as a basis for the design and engineering of the project.

These new facilities have been developed with the aim of expanding and improving the SIGMA group's services.

Some of the assays and analytical tests that can be performed in the laboratory are:

  • Jar tests - Test with all types of coagulants, flocculants and pH adjustment reagents.
  • Determination of water treatability through physicochemical processes for new water treatment plant development projects.
  • Optimization and correction of reagent dosing in existing treatment plants.
  • Control of biological reactor sludge condition by means of V30.
  • Buoyancy tests.
  • Analysis of fundamental wastewater parameters: COD, pH, turbidity, total nitrogen, nitrates, ammonium, total phosphorus, phosphates...
  • Treatability tests using activated carbon filters.
  • Ultrafiltration membrane treatment tests.

If you would like us to carry out any type of test on your wastewater or would like more information on the service, please do not hesitate to contact us by e-mail at or by calling us at 972 223 481.