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All Journal Journal of Community Service and Empowerment
Zyahwa Azalea Sunardi
Department of Biology Education, Faculty of of Mathematics and Natural Sciences, University state of Surabaya, Jl. Ketintang Pratama V, Gayungan, Surabaya, East Java 60231, Indonesia
Social Sciences Other

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Composting waste using rotten tempeh and stale rice MOL in Kampoeng Pintar Oase Surabaya Zyahwa Azalea Sunardi; Herlina Fitrihidajati; Adi Candra; Nurcholis Nurcholis; Aseyan Aseyan
Journal of Community Service and Empowerment Vol. 7 No. 2 (2026): August
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jcse.v7i2.43511

Abstract

The high volume of organic waste generated in urban areas calls for effective and sustainable management solutions. Kampoeng Pintar Oase Surabaya still relies on the commercial bioactivator EM4, which is relatively unaffordable; therefore, an environmentally friendly local bioactivator alternative is required. This study aimed to evaluate the effect of local microorganisms (MOL) derived from rotten tempeh and stale rice on composting duration and compost quality. MOL was produced by fermenting rotten tempeh, stale rice, and sugarcane molasses for 14 days. Composting was then conducted using EM4 and MOL treatments, each with three replicates. Composting duration and physicochemical characteristics were analysed descriptively based on laboratory results from BSPJI Surabaya. The results of the study showed that rotten tempeh and stale rice MOL accelerated the composting process to an average of 23 days, compared to 27 days for EM4. The compost produced was dark brown in colour, had an earthy aroma, and contained 1.13% N, 0.48% P, and 6.95% K. The total N+P+K content of 8.56% indicates that the compost meets the minimum requirements for solid organic fertiliser as stipulated in Ministry of Agriculture Regulation No. 01 of 2019.
Co-Authors Adi Candra Aseyan Aseyan Herlina Fitrihidajati Nurcholis Nurcholis