Effect of Washing Method and Intake Concentration on the Removal of Odor and Particulate Matter

Abstract

This study investigates the effects of different washing methods and intake concentrations on the removal efficiency of odor gases and particulate matter. Odor concentration (OU value) was used as the evaluation criterion, with three concentration gradients established: high (1000–1100 OU), medium (500–600 OU), and low (200–300 OU). The experiment employed water washing, acidic washing (pH = 4), and alkaline washing (pH = 10) to analyze the removal rates across nine treatments. Results indicated that the removal rate of ammonia significantly increased with higher intake concentrations (p p p p p p p p > 0.05), although acidic washing showed the best performance. Neither washing method nor intake concentration significantly affected particulate matter removal. It is recommended to combine acidic and alkaline washing for optimal deodorization.

Keywords

• malodorous gas
• particulate matter
• washing technique
• inlet concentration
• deodorization efficiency