EFISIENSI PENGGUNAAN SERBUK GERGAJI KAYU DAN MIKROORGANISME LOKAL (MOL) NASI BASI DALAM PEMBUATAN KOMPOS SAMPAH SAYU

Abstract

The composting process is an environmentally friendly method of managing organic
waste that can produce natural fertilizer. Composting methods can be divided into aerobic, which
accelerates decomposition by involving air, and anaerobic, which is suitable for odorous waste and
works without air. In this study, composting was carried out using vegetable waste with the addition of
sawdust and Local Microorganisms (MOL), while comparing the effectiveness of aerobic and anaerobic
composting methods. The research was conducted with four treatment variations: vegetable waste (SS),
vegetable waste + MOL (SSM), vegetable waste + sawdust (SSSG), and vegetable waste + sawdust +
MOL (SSSGM). The analyzed parameters included moisture content, organic carbon (C-organic),
organic nitrogen (N-organic), and the C/N ratio. The results showed that sawdust was able to balance
the C/N ratio, improve aeration, and control moisture, while MOL from fermented rice accelerated
decomposition by enhancing microbial activity. Both methods produced compost that met the SNI 19-
7030-2004 standard. The aerobic method reached stability faster, with lower moisture content and less
leachate volume, although it required regular turning. In contrast, the anaerobic method was simpler,
required no turning, and was suitable for limited land, but it produced more leachate and required a
longer decomposition time.