What is the specific role of ORP in dechlorinating light brine?

ORP meter oxidation-reduction potentiometer (O* dation and Reduction Potential) Oxidation-reduction potential (normal ORP < -50 mV) is used to detect the oxidation-reduction potential of light brine after dechlorination, and indirectly reflects the content of free chlorine.

ORP is an oxidation potentiometer, which is mainly used to detect the free chlorine content in dechlorinated brine during the dechlorination process.

It must be the redox electrode potential, measuring free chlorine

ORP is an oxidation-reduction potential meter, mainly used to detect free chlorine in dechlorinated brine.

Detect free chlorine in dechlorinated brine to reflect the dechlorination effect of light brine.

The higher the potential, the more free chlorine. Little Japan recommends that it be below -50mV, indicating that there is no free chlorine.

The light brine coming out of the electrolytic cell contains a small amount of dissolved chlorine. When it returns to the refining section, this part of the dissolved free chlorine must be removed. After passing through the dechlorinator, an appropriate amount of sodium sulfite needs to be added to remove residual free chlorine. Chlorine is an oxidizing substance. The relative level of chlorine content in water can be explained by measuring the redox potential value. If the free chlorine is removed sufficiently, the redox potential of the brine will be very low. When measuring, a noble metal electrode, usually a platinum electrode, is used as the measuring electrode, and a silver-silver chloride electrode is used as the reference electrode (3M potassium chloride reference solution). The potential value of the measuring circuit is measured by a dedicated analyzer (usually a potentiometer or pH meter).

Mainly to monitor the removal of free chlorine in dechlorinated light brine, we control the ORP to be less than -50mv

Monitoring the free chlorine content in dechlorinated light brine is generally 0 or negative.

Detect free chlorine in dechlorinated brine to reflect the dechlorination effect of light brine. Generally less than -50mv but we generally control it at -200, so the cost comes up.