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Cigarette Butts Now Building Blocks for Bricks
15 Sep
Summary
- Cigarette butts can be incorporated into fired-clay bricks.
- Bricks with 1% butts use less energy and offer better insulation.
- Recycling butts tackles litter and lowers production costs.
Discarded cigarette butts, a pervasive form of litter, are being repurposed by researchers into building bricks. This innovative approach involves collecting and processing cigarette filters for inclusion in lightweight fired-clay bricks. Previous research indicated that bricks containing just 1% recycled cigarette butts could match the strength of conventional bricks while consuming less energy during their manufacture.
The plan outlines a collaborative effort between the brickmaking and waste management industries. It details methods for incorporating butts, such as whole, shredded, or pre-mixed materials, and emphasizes necessary health and safety measures for handling cigarette waste. Cigarette filters contain over 60 known carcinogens and heavy metals like arsenic and chromium, which can contaminate soil and water when littered.
Reusing these toxic substances in bricks offers a practical solution to a significant environmental problem and can also reduce brick production costs. Replacing 1% of brick material with cigarette butts can decrease firing energy by up to 10%. Additionally, bricks with recycled butts are lighter and provide superior insulation, potentially lowering a building's energy consumption for heating and cooling.
The global scale of cigarette production, generating approximately 1.2 million tonnes of toxic waste annually, necessitates robust collection systems. Specialized bins could facilitate collection, ensuring a steady supply for brickmakers. The researchers suggest that integrating recycling technology with organized collection and stricter anti-littering laws is crucial to effectively tackle cigarette butt waste and its environmental impact.
