Effect of Chlorine Solution Concentration Variation on the Effectiveness of a Water Scrubber System in Purifying Flue Gas

Abstract

The drying of municipal solid waste (MSW) aims to reduce volume and water content, but it can produce
hazardous gas emissions such as NH3, H2S, CO2, CH4, and CO that need to be treated. This research develops a
water scrubber to purify the flue gas from MSW drying. Experiments were conducted with variations of bleaching
powder (250 mg, 500 mg, 750 mg) in water, measuring the effectiveness of the water scrubber in reducing gas
content. The results show that the use of a scrubber with a bleaching powder solution significantly reduced
the flue gas content. Before using the scrubber, these gases had average values of NH3 15.8 ppm, H2S 17.79
ppm, CO2 0.04 ppm, CH4 0.06 ppm, and CO 0.09 ppm. After using the scrubber with a bleaching powder solution,
a significant reduction was recorded, with NH3 1.07 ppm, H2S 0.79 ppm, and CO2, CH4, CO reaching 0
ppm. The 750 mg bleaching powder variation showed the best results in capturing flue gas.