Development of cyclone scrubber for small waste incinerator

Abstract

This study designed and tested the efficiency of a cyclone scrubber for small waste incinerators. The system consisted of a cyclone, 30 cm. in diameter and 120 cm. in height, and a scrubber tube fitted with an axial-flow nozzle capable of producing 300-500 ?m diameter droplets. The scrubber tubes had two sizes: 15 and 7.5 cm diameter. The air flow rate was 12 m3/min. The liquid flow rate was 3 and 8 lpm. The test results showed the system’s collection efficiency of 33% to 72% for particle and 7% to 85% for carbon monoxide. Overall, higher efficiencies occurred in cases which have high L/G ratio, low cross-section area scrubber tube, or counter-current water injection. The differences in efficiency, however, were not statistically significant at ? = 0.05 in several cases. In addition, the cyclone scrubber removed particles better than the normal cyclone, with 72% and 43% efficiency, respectively.