Technical Specification

It demonstrates the removal of dissolved substances by precipitation and flocculation with subsequent sedimentation.First, raw water is produced in a tank to contain dissolved metal (e.g. iron). A pump transports the raw water to the precipitation tank. Here the precipitant is added (e.g. caustic soda). Due to the reaction of the dissolved metal ions with the precipitant, insoluble metal hydroxides form (solids). From here the water flows into a flocculation tank divided into three chambers.
precipitation and flocculation of dissolved substances (e.g. iron)
separate supply unit with tank and pump for raw water
tank cover for raw water and treated water made of transparent material
precipitation tank with stirring machine
flocculation tank with 3 chambers and 4 stirring machines
3 metering pumps for chemicals
sedimentation of the flocs in the lamella separator
measurement of flow rate, temperature and pH value
control of the pH value in the precipitation tank
conductivity meter