Characterization and application of distillation by-product from Kjeldahl protein testing as a liquid medium for air pollution control

The challenge of managing industrial waste and controlling air pollution necessitates innovative solutions. Wet scrubbers effectively remove pollutants from industrial emissions; however, the conventional liquid media used in these systems can be costly and environmentally detrimental. This study explores the feasibility of repurposing by-products from distillation processes, specifically those derived from protein analysis using the Kjeldahl method, as an alternative liquid medium for wet scrubbers. The research evaluates the characteristic and pollutant absorption efficiency of these distillation by-products. The findings demonstrate that the distillation by-products, with proper adjustments to volume and concentration, can effectively neutralize pollutants. The results indicate significant reductions in NaOH concentration over a 10-day testing period, showcasing the solution's viability for long-term use. This approach not only offers a cost-effective solution but also aligns with sustainability goals, particularly in reducing waste and promoting responsible resource consumption. The study supports Sustainable Development Goals (SDGs) 12 (Responsible Consumption and Production) and 13 (Climate Action) by proposing a method to enhance air quality and minimize waste production.