The emergence of organic micropollutants in surface waters and even groundwater and increasing salination in river delta areas, drives water utility managers towards adoption and application of advanced and robust barriers in drinking water production like reverse osmosis (RO) filtration. However, water produced by RO, called permeate, contains hardly any minerals, is corrosive and bitter in taste. Hence, remineralisation is needed to improve the permeate water quality and comply with (Dutch) drinking water regulation. In order to test the performance of remineralisation using limestone (calcite) filtration, a pilot-scale filter has been set up and connected to an RO filtration system that treats anaerobic groundwater and equipped with on-line sensors for pH, conductivity and carbon dioxide. The degree of (re)mineralisation was tested at different flow rates, a smaller calcite grain size and with a lower temperature than previous studies. The pilot shows that the degree of remineralisation performance can be monitored on the basis of a few on-line sensors and a model that describes the dissolution of calcite.

地表水甚至地下水中的有机微污染物的出现以及三角洲地区盐碱化的加剧，驱使水务事业管理者朝着采用和应用诸如反渗透（RO）过滤之类的饮用水生产中的先进而坚固的屏障发展。但是，反渗透所产生的水（称为渗透液）几乎不含任何矿物质，具有腐蚀性和苦味。因此，需要再矿化以改善渗透水的质量并遵守（荷兰）饮用水法规。为了测试使用石灰石（方解石）过滤进行再矿化的性能，已建立了中试规模的过滤器，并将其连接到可处理厌氧地下水的RO过滤系统，并配备了在线pH值，电导率和二氧化碳传感器。与以前的研究相比，在不同的流速，较小的方解石晶粒尺寸和较低的温度下测试了（再）矿化程度。试点表明，可以基于一些在线传感器和描述方解石溶解的模型来监控再矿化程度。