Technical Specifications

The Institut National de la Recherche Scientifique,
INRS-ETE
490, rue de la Couronne,
Québec, Canada G1K 9A9
Patrick Drogui, Ph.D., Professor
Ahmad Dirany, Ph.D., Research Associate
March, 2017
Appendix:
Calcium and magnesium ions present as sulfates, chlorides, carbonates and bicarbonates cause water to be
hard. Water chemists measure water impurities in parts per million (ppm). For understandability, hardness ordi-
narily is expressed in grains of hardness per gallon of water (gpg). The two systems can be converted mathe-
matically.
Figure 1: Test Loop Set Up
Photo of Actual Test Loop
INRS – SCALESWEEPER PRODUCT PERFORMANCE TEST DATA 5
Conclusion:
According to the results of different experiments, we can conclude that the SCALESWEEPER unit was very
efficient to prevent and remove the scale formation irrespective of water hardness, water temperature and
recycling flow rates.