Potential Application of Black Soldier Fly Larva Bins in Treating Food Waste

Abstract

The increase in the global population has led to a rise in organic waste generation and landfill sites. Consequently, there has been a global shift in focus towards the utilization of BSFL to address these challenges. This study aims to design, develop, and test a user-friendly BSFL bin and identify the optimal MCCM for treating organic waste using BSFL. The four BSFL bins have a dimension of 330 mm (width) × 440 mm (length) × 285 mm (height). This study uses mixtures of food waste added with different MCCMs, including chicken feed, rice bran, and garden waste. We add the mediums to the BSFL bins every third day and measure the humidity, ambient temperature, pH, medium temperature, and BSFL weight and length. The measurements show that the fabricated BSFL bins can fulfill the BSF lifecycle requirements. Wild BSFs lay eggs in the medium of BSFL bins, and the hatched larvae decompose it. When they reach the prepupae stage, they climb the ramp into the harvesting container. The results show that the food waste without MCCM produced the heaviest (0.228 g) and longest (2.16 cm) larvae; the prepupae are 2.15 cm long and weigh 0.225 g; and the growth rate is 53.72%. However, the high moisture content of 75.3% makes the maintenance work challenging. The medium with MCCM has a markedly lower moisture content of 51-58%. A comparison of the three MCCMs shows that the chicken feed produces the larvae and prepupae with the highest growth rate (the larvae are 2.10 cm long and weigh 0.224 g, the prepupae are 2.11 cm long and weigh 0.221 g, and the growth rate is 72.36%) and the frass with the lowest moisture content (51.2%). An effective BSFL composting system is easy to manage and produces the biggest larvae. In summary, food waste mixed with chicken feed is the most suitable MCCM for treating organic waste using BSFL.

Flight toward Sustainability in Poultry Nutrition with Black Soldier Fly Larvae

“…Importantly, they pose no threat as pests and are not known to serve as vectors for pathogens. BSFL have been recognized as an innovative solution to several contemporary environmental and agricultural concerns, with their multifaceted applications documented extensively in the recent scientific literature [31,32]. One of their most noteworthy utilities lies in organic waste management.…”

“…Furthermore, BSFL significantly reduces waste volume by rapidly eating organic waste, providing a practical substitute for conventional landfill disposal techniques. This contributes to reducing methane emissions, a potent greenhouse gas frequently emitted by decomposing organic matter in landfills, and waste accumulation [31][32][33].…”