Organic waste frequently becomes problem in every city in Indonesia because the quantity keeps increasing while disposal area is very limited. Most of organic waste is transported to final disposal area despite its potential to be converted into compost. This is also the case in Bekasi City. Banana stem waste is organic waste from agricultural sector, which creates problems because of its weight and volume. Composting is an alternative to treat this type of organic waste. Banana stem contains Carbon, Nitrogen, Fosfor, Kalium which are important materials for compost . This study was conducted to identify the potential of converting banana stem waste into compost. Composting of banana stem was set to 25 days. During composting process temperature increased up to 45 o C. The increase of temperature indicated microorganism activity in decomposing banana stem waste. Final result of composting revealed that banana stem compost contains C-Organic, Phosphorous and moisture content that comply with the requirement of compost according to SNI 19-7030-2004. Banana stem compost also contain Kalium and Mangan but the concentration were lower than the standard. Composting of banana stem gave many benefits. It reduced organic waste quantity and the product can be reused as fertilizer. Banana waste compost provided nutrients that are required for crops productivity.
Limbah organik sering menjadi permasalahan di setiap kota di Indonesia karena kuantitasnya yang terus bertambah sementara lahan tempat pembuangan akhir semakin terbatas. Sebagian besar limbah organik, yang sebetulnya berpotensi diolah menjadi kompos, langsung dibuang ke tempat pembuangan akhir. Hal tersebut juga terjadi di kota Bekasi. Limbah batang pisang yang merupakan limbah organik menimbulkan masalah karena berat dan volumenya yang besar. Pengomposan merupakan salah satu alternatif untuk mengolah limbah organik. Limbah batang pisang mengandung Karbon, Nitrogen, Fosfor, dan Kalium yang merupakan unsur penting dalam pengomposan. Penelitian ini dilakukan untuk mengetahui potensi pengolahan limbah batang pisang menjadi kompos. Proses pengomposan limbah batang pisang dilakukan selama 25 hari. Selama proses pengomposan, temperatur mengalami kenaikan hingga 45 oC. Hasil akhir menunjukkan kompos yang dihasilkan mengandung C-organik, fosfor, dan kadar air yang sesuai dengn persyaratan SNI 19-7030-2004. Kompos batang pisang juga mengandung Kalium dan Mangan meskipun konsentrasinya masih belum memenuhi persyaratan. Pengomposan limbah batang pisang memberikan dua keuntungan yaitu mengurangi jumlah limbah organik dan menghasilkan produk yang dapat dimanfaatkan sebagai pupuk. Kompos batang pisang mengandung nutrien yang bermanfaat untuk meningkatkan produktivitas tanaman.
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