Sand-cycle krijgt positieve feedback van onderzoekers die Sand-Cycle hebben gebruikt bij hun pilot-onderzoek met continue zandfiltratie bij WwTW Gardermoen in Noorwegen. Zij zijn enthousiast over het gebruik van dit instrument en hebben hun positieve feedback gerapporteerd.
The research, executed on behalf of the Regional Research Council of the city of Oslo, focused upon nitrogen en phosphorus removal in a continuous sand filter after MBBR treatment. Very low effluent levels were consistently established; results have been published by IWA in the 80th Volume, Issue 2, of Water Science & Technology (see this link: https://doi.org/10.2166/wst.2019.266 to read the full article).\
The research team indicated Sand-Cycle to be a very convenient tool for monitoring good operating filter conditions. The results are reliable and, in addition, Sand-Cycle contributed to the quality and intensity of the research. Quick interventions were possible, once Sand-Cycle detected process anomalies, reducing valuable research off-time.
These positive experiences with Sand-Cycle confirm what other users already have experienced. Sand-Cycle frequently receives positive feedback from other international references.
The Sand-Cycle dashboard below clearly illustrates the recorded distinction between a good and bad performing filter. The scatter between the average and the standard deviation values indicates the homogenity level of the system. Greater spread (thicker band) implies that few parts of the filters flow significantly faster or slower. This case of thick band also depicts relatively lower performance level of the filter.