Vegetable waste composting: A case study in Kundasang, Sabah

N. Murshid and Abu Zahrim Yaser and Mariani Rajin and Sariah Saalah and Junidah Lamaming and M. Taliban (2022) Vegetable waste composting: A case study in Kundasang, Sabah. Borneo Science, 43. pp. 1-16. ISSN 1394-4339 (P-ISSN) , 2231-9085 (E-ISSN)

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Abstract

Composting is considered agronomically, ecologically, and practically beneficial, with the end product being an organic fertilizer or soil conditioner rich in nutrients for the soil. This study aims to investigate the effects of adding chicken manure (CM) to vegetable waste (VW) and rice husk (RH) composting. This is a pioneering study on Kundasang composting, as well as addressing the vegetable waste problem in the community. The composting process was studied for 20 days in a 37-L laboratory composter reactor box with passive aeration. Four mixtures were investigated, each with a VW: RH (1:2) ratio and a different additive of CM (0%, 1%, 2.5% and 5%). The composting process’s performance shows that Mix-3 (2.5 % CM) is ideal compared to other mixtures, with the highest temperature achieved at 41ºC as early as day 1, resulting in a 28.12% organic matter (OM) loss. The OM loss value results show that Mix-3 (28.12%) > Mix-2 (26.14%) > Mix-1 (16.55%) >Mix-4 (13.33%). The maximum temperature reached was 41ºC, and the Mix3(41.3ºC)>Mix-1(41.1ºC)>Mix-2(41.0ºC)>Mix-4(40.7ºC) and decreasing near to ambient. The reduction percentage shows Mix-3 (13.92%) > Mix-2 (13.45%) > Mix-4 (9.24%) > Mix-1 (8.93%). Thus, with the optimum addition of chicken manure, the degradation is reflected in the high moisture content reduction rate. In conclusion, using CM as an additive has a significant impact on composting VW.

Item Type:	Article
Keyword:	Vegetable waste , Composting , Kundasang , Sabah
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD1-1066 Environmental technology. Sanitary engineering > TD783-812.5 Municipal refuse. Solid wastes
Department:	FACULTY > Faculty of Engineering
Depositing User:	SAFRUDIN BIN DARUN -
Date Deposited:	28 Oct 2022 15:37
Last Modified:	28 Oct 2022 15:37
URI:	https://eprints.ums.edu.my/id/eprint/34625

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