Composting process of Dipterocarpus alatus and kitchen waste (vegetables and fruits) at isolated military units
DOI:
https://doi.org/10.54939/1859-1043.j.mst.208.2025.91-97Keywords:
Dipterocarpus alatus; Kitchen waste (vegetables and fruits); Compost; Organic humus; Enzyme (Bima).Abstract
Dipterocarpus alatus is widely planted in military units due to its strong adaptability to various soil types, high drought tolerance, and deep root system, which enhances stability and minimizes wind damage, thereby ensuring the safety of military infrastructures. At present, the fallen leaves of this species are mostly collected and burned, causing environmental pollution because they contain 50 - 70% essential oils and 30 - 40% resin, which release toxic compounds during combustion. This study aimed to develop and evaluate a composting process utilizing Dipterocarpus leaves combined with kitchen waste. The composting mixture consisted of 60% dried D. alatus leaves, 15% rice husk, and 25% kitchen waste (vegetables, tubers, and fruits) by weight. The application of the Bima bio-agent effectively accelerated the decomposition process. The resulting compost product met the Vietnamese industry standard 10TCN 526:2002 for microbial organic fertilizer derived from household waste, with the following characteristics: 97.1% of particles passing through a 5 mm sieve, moisture content of 32.26%, pH of 7.58, total organic matter content of 34.16%, total nitrogen content of 2.61%, and absence of Salmonella spp.
References
[1]. Ministry of Natural Resources and Environment (MONRE), “Technical guidelines for compost production from organic municipal solid waste”, Hanoi, Vietnam, (2012).
[2]. J. R. Borglin, S. J. S., W. H., et al., “An overview of the sustainability of solid waste management at military installations”, International Journal of Environmental Technology and Management, (2009).
[3]. United Nations Environment Programme (UNEP), “Global Waste Management Outlook”, United Nations Environment Programme, (2018).
[4]. D. Hoornweg and P. Bhada-Tata, “Waste management in the developing world: A new look”, World Bank Group, (2013).
[5]. Nguyen Thanh Binh, Le Dinh Xuan, Nguyen Huu Tan, Tran Quang Huy, “Study on aerobic composting model of chicken manure and rapid assessment of stability of compost products after composting”, Journal of Science & Technology, Vol. 61, No. 7, pp. 38–45, (2018).
[6]. S. V. K. et al., “Optimizing food waste composting parameters and evaluating heat generation”, Applied Sciences, Vol. 10, No. 7, Article 2284, (2020).
[7]. Phan Quang Huong, “Research on the process of processing straw into organic fertilizer”, Research Topic, (2020).
[8]. Pham Thi My Tram, “Study on the influence of some factors on the composting process from water hyacinth”, Thu Dau Mot University Science Journal, (2016).
