The brilliant innovation of the trash in Malang

Students are subject to economic or brilliant compostable briquettes made with his peers in SMPN 30, Malang, East Java, Monday (18/11/2024). The innovation of briquettes made a mixture of dried leaves compost and charcoal made a teacher called Supriyadi was assessed to have a cheaper production cost compared to the coal briquette so that it can be a solution of waste problems around the school while becoming an educational means for students. ANTARA FOTO/Ari Bowo Sucipto/Spt.

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