Team : Celestial
Member : Leonardo Moises PARICAHUA CONTRERAS(PER), Jirapinya KONGTHAVONSAKUL(THA)
Mentor : Prof. Manho OH
Research Title : Development of Particulate Matter Filter Sheets Using Agricultural Waste from Field Corn

Research summary :
Background :
PM2.5 particles from agricultural waste burning cause serious health issues. Farmers often burn corn husks due to lack of options. This project develops eco-friendly filtration sheets from corn husk fibers and cassava flour to reduce PM2.5 in a low-cost, sustainable way.

Objectives : 
- Create biodegradable PM2.5 filter sheets using local materials
- Testeachformulationfor:
 ㆍConsistency (texture and surface quality)
 ㆍDurability (strength)
 ㆍFiltration efficiency (PM2.5 reduction)

Materials & Method : 
- Corn husk fibers, cassava flour, water
- Fiveformulations(0–10gcassavaflour)
- Sheetsdriedandtestedincontrolledsettings

TestsConducted:
1.FiltrationTest–Airpassedthroughsheets;PM2.5measuredbefore&after
2.DurabilityTest–Manualbending/stretching
3.ConsistencyCheck–Visual&tactileevaluation

Key Results :


Sheet 3 (5g cassava) showed the best balance of filtration, consistency, and durability.
Discussion & Impact
ㆍCorn husk and cassava flour can be repurposed into useful air filters
ㆍResultsmatchedexpectations,thoughdryingandairflowconditionsvaried
ㆍThisapproachsupportscleanerairandwastereduction,especiallyinruralcommunities

Conclusion & Future Plans
This project proves that simple, natural materials can reduce PM2.5. Future work includes:
- Testinginoutdoorconditions
- Improvingdurabilityandwaterproofing
- Communityworkshopsandreal-useapplications