Effect of liquid scrubber’s concentration and residence time on efficiency of chlorine gas removal: article / Muhammad Shahril Aidi and Safari Zainal

Chlorine gas (Cl₂) is an acid gas which can causes various effects towards living organisms if these acidic gases are release to the environment without treated properly. Among them, air contamination is the real issue that has been influencing human wellbeing that will cause much type of serious diseases. The analysis was conducted to study the efficiency of the Cl₂ removal by using different concentrations of Sodium Hydroxide (NaOH) solution as the liquid scrubber. The Cl₂ was prepared and absorption of Cl₂into water is taken as guidelines. The relationship or effect of the concentration of liquid scrubber’s and residence time is shows in the graph. In this research the Cl₂ used is 30ppm were scrubber with different concentration of liquid scrubbing and residence time which the concentration of liquid scrubbing is varies from 0.5 M, 1.0 M, 1.5 M and 2.0 M while the residence time are varies from 1 min, 3 min, 5 min and 7 min. The Cl₂ was transferred into the scrubber with contain 200ml each solution at every experiment respectively. The result from the observation that have been done in the lab, the most efficient of Cl₂ removal using wet scrubber is at 2.0 M and at 1 minute residence time which the percentages of the Cl₂ removal at 82.5 %. However, the other sample also remove the Cl₂ but not efficient as the 2.0 M of NaOH solution as the liquid scrubber.