ProMinent Electrolysis System CHLORINSITU® V


Chlorine and sodium hydroxide made from common salt. Directly on site.

Electrolysis Systems of type CHLORINSITU® V generate ultra-pure chlorine gas in a vacuum process. A saturated solution of sodium chloride is produced in a salt-dissolving tank, included in the scope of delivery, and this solution is then electrolysed in a diaphragm cell. Chloride-free sodium hydroxide solution and hydrogen are produced in the cathode chamber, while ultra-pure chlorine gas and dilute residual brine are produced in the anode chamber, separated by the diaphragm from the cathode chamber. The chlorine gas produced is suctioned off through an injector (contained in the scope of delivery) and fully dissolved as hypochlorous acid in the water being treated (through a bypass). The chlorinated water is then distributed throughout the various pools via one or more proportionately controllable motor driven ball valves. The vacuum is kept stable by a single frequency-controlled booster pump. This permits significant savings in terms of energy. The chloride-free sodium hydroxide solution is stored temporarily and can be used for pH value correction. A standard diaphragm metering pump is first used to correct the base (pH 6.8 – 7) of the superchlorinated water. The fine correction of the pH value is provided via additional alkali metering pumps for each circuit or point of injection. The hydrogen produced is diluted with fresh air by a fan and discharged safely. The diluted residual brine is fully discarded. To achieve this, the diluted brine is strongly diluted with softened water, neutralised by the addition of sodium hydroxide solution and disposed of. All residual chloride and chlorate is thus disposed of and not mixed with the process water. Electrolysis systems of type CHLORINSITU® V can thus be compared with pure chlorine gas in terms of their oxidation strength and chloride / chlorate content in the process water. The salt-dissolving water comes from a softener integrated in the system, preventing the formation of lime deposits and ensuring the long service life of the diaphragm cell. The efficiency of electrolysis is constantly monitored by various flow meters, the addition of water depending on the sodium hydroxide solution production and the base pH correction.

Your Benefits

  • Chlorination and pH adjustment with a single system
  • Exceedingly low chloride and chlorate content
  • Production and metering of high-purity hypochlorous acid without temporary storage
  • Safe system control with remote diagnosis by Remote Control Engineer
  • Excellent service life of the diaphragm cells, thanks to a constant vacuum
  • Excellent operating safety due to its design as a negative pressure system
PDF Click here to download the CHLORINSITU® V brochure


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