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정부 재활용산업 발전 방안 토론회/정부 신기술 인증 통합브랜드 NET 개편/서울시 일회용품 과대포장 화장품 최다/환경부 납,카드뮴 함유된 포장재 사용 규제/환경부 폐건전지, 등 재활용 대상품목 추가/농림부 원산지 표시 의무품목 103개 늘어/농림부 시판용 수입쌀 시제품 포장공개/농림부 브랜드쌀 생산·유통체계 발진/식약청 코팅안경 원산지 의무화 마련/식약청 '아크릴로니트릴' 시험법 개선

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• 2021

Coffee is a popular beverage not only in Korea but also around the world, and its consumption is on the rise. As coffee consumption increases, coffee waste are also increasing, and recycling is attempted in various fields. However, these recycling methods require complex recycling processes and specialized skills. However, in this study coffee waste, agar powder, and powdered glue were mixed in an appropriate ratio and used as a cement building finishing material. This recycling method has a simple manufacturing method and was shown to improve indoor air quality by delaying radon emitted from cement walls for 2.5 hours with one application and 3.9 hours with two applications. In addition, it was shown that after applying the coffee waste mixture, it was applied twice to close the cracks that occurred during the drying process, thereby prevent the coffee waste from falling off the wall for aesthetic perfection.