Effect of alkaline pre-treatment on hydrolysis rate and methane production during anaerobic digestion of paunch solid waste

Bai, Xue; Grassino, Maria; Jensen, Paul D.

doi:10.1016/j.wasman.2023.08.027

Cited by 6 publications

(2 citation statements)

References 35 publications

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“…This observation could be related to the nutrient composition in slaughterhouse waste that may need to fully meet the nutritional requirements of the larvae for optimal growth. The slaughterhouse waste had a total lignocellulose content of 87% [13]. These lignocellulosic components are predominantly resistant to digestion by BSF larvae, resulting in suboptimal growth and development [14,15].…”

Section: Resultsmentioning

confidence: 99%

“…This result indicated that adding rice bran can enhance the growth and development of BSF larvae. Rice bran contained a total Kjeldahl nitrogen of 22,471 mg/kg [16], while slaughterhouse waste only had a total Kjeldahl nitrogen of 2,083 mg/kg [13]. The presence of nitrogen in the substrate is of utmost importance in facilitating the decomposition of slaughterhouse waste that is rich in lignocellulose.…”

Section: Resultsmentioning

confidence: 99%

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Morphometric traits of Black Soldier Fly larvae in slaughterhouse waste and rice bran growing medium

Fasha,

Andri,

Isnaini

2024

BIO Web Conf.

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This study investigated the effects of utilizing a mixture of slaughterhouse waste and rice bran as a growing medium on the morphometric traits of Black Soldier Fly (BSF) larvae. The research followed a completely randomized design with five treatment groups, namely T0: 100% slaughterhouse waste (control), T1: 75% slaughterhouse waste + 25% rice bran, T2: 50% slaughterhouse waste + 50% rice bran, T3: 25% slaughterhouse waste + 75% rice bran, and T4: 100% rice bran. The morphometric traits examined in this study included the larvae body length at 19 days (LBL19), larvae body width at 19 days (LBW19), larvae body length at 29 days (LBL29), and larvae body width at 29 days (LBW29). The results demonstrated that using slaughterhouse waste as the sole medium (T0) could support the growth of BSF larvae, but the morphometric traits of larvae in T0 were relatively modest. Interestingly, when RB was used to replace SW partially, it had a dose-dependent effect. T1 significantly improved (P < 0.05) LBL19, LBL29, and LBW29. Conversely, the morphometric traits of BSF larvae in T2 and T3 did not exhibit significant changes (P > 0.05) compared to the control. Moreover, the use of T4 significantly enhanced (P < 0.05) all morphometric traits of BSF larvae (LBL19, LBW19, LBL29, and LBW29). In conclusion, this study reveals the significant potential of BSF in managing slaughterhouse waste. Furthermore, employing a growing medium consisting of 75% slaughterhouse waste and 25% rice bran emerges as a practical approach to strike a harmonious balance between effective waste management and fostering the development of BSF larvae.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%