Tap water is an indispensable drinking water in our lives, so the requirements for water quality should be carefully treated! The water quality can be monitored and treated in the waterworks before it can be used by everyone. Among them, disinfection of water with chlorine is a must work, when the water quality continues to be qualified, a small amount of residual chlorine is required, which is the so-called residual chlorine. Excess chlorine can be harmful to the human body, so how do you know that there is excess chlorine in the water? This chapter water quality online monitoring instrument manufacturers to understand the monitoring of chlorine in water with you!

Of course, the total residual chlorine in its water can be monitored in real time by water quality monitoring equipment, so as to determine whether it exceeds the standard. Total residual chlorine refers to the amount of residual chlorine left after chlorine oxidants are added to water for a period of time, in addition to being consumed by microorganisms, organic and inorganic substances in water, including free residual chlorine and combined residual chlorine. Free residual chlorine refers to chlorine in the form of hypochlorous acid (HClO) or dissolved elemental chlorine (Cl2); Combined residual chlorine refers to chlorine in the form of chloramines and organochloramines. The existence of residual chlorine in water environment is mainly introduced by artificial chlorination treatment, which is a water treatment technology that non-selectively kills bacteria, algae and other microorganisms in water with the help of strong oxidation of chlorine. With the extensive use of chlorine, the toxic and carcinogenic effects of its by-products are increasingly concerned, so the chlorine content must be analyzed and determined. At the same time, in order to achieve accurate dosing, economic and effective use of chlorine disinfection, it is also necessary to monitor the content of residual chlorine in water in real time.

RCl900 Total residual chlorine on-line analyzer is a fully automatic on-line monitoring instrument controlled by an embedded system. After the water sample and anti-interference agent are automatically injected into the reactor, the characteristic color developing agent is automatically added for color developing reaction, and the absorbance of the reactants is measured. The online analyzer can directly measure the total residual chlorine content in water through the absorbance value.