Bioma : Jurnal Ilmiah Biologi
Vol. 15 No. 2 (2026): October 2026

MAKING LIQUID ORGANIC FERTILIZER FROM BLACK SOLDIER FLY LARVA LEACHATE USING A VARIETY OF CANTEEN WASTE

Adrianto Prihartantyo (Department of Bioprocess Engineering, Faculty of Biotechnology, Institut Teknologi Del)
Hesekiel Mitra Insan (Department of Bioprocess Engineering, Faculty of Biotechnology, Institut Teknologi Del)
Nina Roberta Turnip (Department of Chemical Engineering, Institut Teknologi Sumatera)
Astiti Aditia (Department of Bioprocess Engineering, Faculty of Biotechnology, Institut Teknologi Del)



Article Info

Publish Date
02 Oct 2026

Abstract

This research aims to develop a POC using BSF larvae leachate and bioactivators as a preliminary study for producing POC using a fermenter in the form of a biodigester. The POC production process involves inserting BSF waste larvae (kasgot) and water into the biodigester at a 1:1 ratio and adding the EM-4 bioactivator; in other variations, only local microorganisms found in kasgot are used. BSF larvae were fed in two variations: vegetable waste and IT Del canteen mixed waste. POC was produced in a biodigester for 28 days. This research analysed pH, temperature, and NPK levels. The results show that POC meeting SNI quality standards was obtained from vegetable waste samples, with a final pH of 5.02 and N content of 0.2315%, P of 0.4031%, and K of 0.4929%. The bioactivator used during fermentation of BSF larval leachate influenced the quality of the resulting liquid organic fertiliser. The EM-4 + molasses + leachate treatment yielded the best quality, achieving the highest total NPK content (0.66%) after 15 days of fermentation. The best treatment for plant growth was the liquid organic fertiliser produced after 12 days of EM-4 fermentation, which produced an average plant height of 11.9 cm.

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Journal Info

Abbrev

bioma

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

Description

Jurnal Ilmiah Biologi focuses on the publication of result’s research related with the major of biology and biology education. For the major of biology, including systematics, physiology and metabolism, ecology, bioconservation, cell and developmental biology, microbiology, genetics, molecular ...