Utilizing agricultural waste in brick manufacturing for sustainable consumption and circular economy
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View abstract on PubMed
Summary
This summary is machine-generated.Sustainable brick production in Pakistan uses invasive Parthenium weed to reduce coal use and harmful emissions. This eco-friendly method offers potential cost savings for brick kilns and environmental benefits.
Area Of Science
- Environmental Science
- Materials Science
- Sustainable Engineering
Background
- South Asian construction relies heavily on coal-fired brick kilns, causing significant pollution.
- Brick kilns in Pakistan use over 50% of national coal, emitting pollutants like CO, SO2, PM, and HF.
Purpose Of The Study
- To explore sustainable brick production using agricultural by-products.
- To assess the impact of Parthenium hysterophorus L. as a clay additive in brick manufacturing.
Main Methods
- Incorporated 15-20% Parthenium biomass into clay for brick production.
- Analyzed brick porosity, density, compressive strength, and emissions during firing.
- Conducted interviews with 50 brick kiln owners in Peshawar regarding adoption feasibility.
Main Results
- Parthenium addition enhanced brick porosity (up to 64%) and reduced density.
- Energy consumption during firing decreased by 15-20%, with compressive strength maintained (15-20 MPa).
- Hydrogen fluoride (HF) emissions reduced by over 50%, with potential production cost reduction of 10-15%.
Conclusions
- Integrating Parthenium weed offers a sustainable alternative for brick production, reducing pollution and energy use.
- Brick kiln owners show enthusiasm, pending cost-effectiveness and pilot project support.
- The approach aligns with UN SDGs, promoting a circular green economy and requiring policy support for adoption.
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