Operation of lime dosing plants in the river Kvina in 2012. Year: 2013

Summary

NIVA has developed methods permitting an efficient control of lime dosing plants. The control involves simple sensor technology and an efficient information flow. This system is used to optimize liming of rivers and ensure cost-efficient liming. The information generated is also an aid to the operators, management and is extensively used in quality control. This report summarizes deviation from ordinary operation of the lime dosing plants and from target pH-values in River Kvina in 2012. Only a few incidences of pH below target levels were identified after establishment of a new lime dosing plant in the lowermost part of the tributary Litleåna.