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ESTD Year: 2017 | Impact Factor (2026): 8.7
DOI Prefix: 10.47001/IRJIET
ESTD Year: 2017 | Impact Factor (2026): 8.7
DOI Prefix: 10.47001/IRJIET
Vol 10 No 6 (2026): Volume 10, Issue 6, June 2026 | Pages: 150-160
International Research Journal of Innovations in Engineering and Technology
OPEN ACCESS | Research Article | Published Date: 17-06-2026
Small-scale tofu industries in Indonesia commonly use wood biomass for boiling soybeans. In the Ploso Village industrial center, 18 micro, small, and medium enterprises (MSMEs) burn firewood without air pollution control equipment. One major facility consumes 171 kg of firewood per hour to process ±700 kg of soybeans daily, resulting in emissions of PM2.5, PM10, and total suspended particulate (TSP). Calculations indicate a TSP concentration of 515.5 mg.m-³, which exceeds the biomass boiler limits established by Minister of Environment Regulation No. 07/2007. In response, an air pollution control system was developed using the Analytic Hierarchy Process (AHP), identifying a cyclone as the optimal solution. The engineered cyclone achieves removal efficiencies of 98.49% for TSP, 45.76% for PM10, and 3.26% for PM2.5, resulting in a total collection efficiency of 53.16%. The chimney was also redesigned according to technical standards to improve emission dispersion. Dispersion modeling shows that implementing these control devices in eight high-capacity MSMEs reduces ambient air TSP concentrations by 36.22%, thereby meeting the national ambient air quality standards specified in Government Regulation No. 22/2021.
Biomass, Chimney, Cyclone, Combustion, Particulate Matter, Tofu MSMEs.
Adinda Bella Dhea Phitaloka, Adinda Khansa Anintya, Nurandani Hardyanti, & Haryono Setiyo Huboyo. (2026). Cyclone and Chimney Redesign for Particulate Emission Control in the Ploso Village Tofu Industry Cluster, Kudus, Indonesia. International Research Journal of Innovations in Engineering and Technology - IRJIET, 10(6), 150-160. Article DOI https://doi.org/10.47001/IRJIET/2026.106017
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