Fertiliser effect on Swiss chard of black soldier fly larvae-frass compost made from food waste and faeces

2021 ◽  
pp. 1-14
Author(s):  
T.E.S. Chirere ◽  
S. Khalil ◽  
C. Lalander

Inadequate organic waste management can have adverse health effects and pollute the environment. If the energy and nutrients in organic waste were to be used efficiently, they could increase food security. Composting using black soldier fly (BSF) larvae can convert organic waste into two valuable products: organic fertiliser, in the form of treatment residues, and animal feed protein, in the form of larvae. To demonstrate the feasibility of using BSF treatment residues as organic fertiliser, more knowledge is needed about the effect of BSF larvae-frass compost on plant growth and performance. This study examined the effect on growth of Swiss chard of five fertiliser treatments: (1) BSF larvae-frass compost of human faeces (BSF-F); (2) BSF larvae-frass compost of food waste (BSF-FW); (3) cow manure (CM), the most commonly used organic fertiliser globally; (4) an inorganic fertiliser containing nitrogen, phosphorus and potassium (NPK); and (5) a negative control with no fertiliser. The results revealed that BSF larvae-frass compost of human faeces and food waste gave comparable yields to inorganic fertilisers, and significantly higher yields than the unfertilised control. The percentage increase in fresh weight of leaves in the treatments compared to the unfertilised control were 132% for BSF-FW, 115% for BSF-F, 118% for NPK and 86% for CM. Principal component analysis (PCA) showed that all treatments involving fertiliser gave differences in soil nutrient concentrations. PCA also revealed a positive correlation between soil nitrate concentration and yield. Thus, using BSF larvae-frass compost as fertiliser could be a way of efficiently returning plant nutrients in faeces and organic waste to the food chain.

Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 161
Author(s):  
Chul-Hwan Kim ◽  
JunHee Ryu ◽  
Jongkeun Lee ◽  
Kwanyoung Ko ◽  
Ji-yeon Lee ◽  
...  

Food waste accounts for a substantial portion of the organic waste generated at an increasing rate worldwide. Organic waste, including food waste, is largely subjected to landfill disposal, incineration, and anaerobic digestion; however, more sustainable methods are needed for treating it. Treatment of organic waste using black soldier fly (Hermetia illucens) larvae is an environmentally safe and cost-efficient method that has been attracting increasing attention worldwide. Black soldier fly decomposes various types of organic waste and converts them into high-value biomasses such as oils and proteins. This review introduces the trends in research related to the treatment of organic waste by black soldier fly (Hermetia illucens) larvae (BSFL) and their bioconversion efficiencies in Asian countries. Perspectives on the growth of BSFL during waste treatment operation and optimal rearing conditions are provided. The trends in studies related to the application of BSFL as biofuel and animal feed are also discussed. Such use of BSFL would be beneficial in Asia, especially in countries where the technology for processing organic waste is not readily available. This review may provide further directions of investigations including culture techniques for industrial scale applications of BSFL in food waste treatment and resource production in Asian countries.


2021 ◽  
Vol 6 (4) ◽  
Author(s):  
Restu Auliani ◽  
Bella Elsaday ◽  
Desy Ari Apsari ◽  
Helfi Nolia

The cultivation of maggot Black Soldier Fly (BSF) is a bioconversion technology of organic matter that can be one solution to the problem of organic waste. This study aims to examine aspects of organic waste management through BSF Medan maggot cultivation, including operational technical, financing, institutional, regulatory and community and government participation aspects. This research is a descriptive observational study with an exploratory study approach using the interview method. Descriptive and quantitative data processing and analysis. Based on operational technical aspects, maggot cultivation has succeeded in converting organic waste into a source of animal feed protein and reducing the amount of organic waste. The amount of organic waste that is managed is 90kg/day with an effectiveness of 0.013% the total domestic waste in Medan. The financing and institutional aspects of waste management are managed in an organized manner through a cooperative body, namely the Primary Waste Management Cooperative (PKPS) Medan. The regulatory aspect that is used as reference is Medan Mayor Regulation No. 26 of 2019. Aspects of community participation directly from members of the cooperative and the Laucih wholesale market trader in Medan City. This bioconversion technology is able to overcome the problem of waste in an effort to reduce organic waste.


2020 ◽  
Vol 6 (2) ◽  
pp. 95-109 ◽  
Author(s):  
G. Bosch ◽  
D.G.A.B. Oonincx ◽  
H.R. Jordan ◽  
J. Zhang ◽  
J.J.A. van Loon ◽  
...  

Using larvae of the black soldier fly (Hermetia illucens; BSF) to convert low-value residual organic resources into high-value products like protein-rich animal feed ingredients and biofuel while managing organic waste has developed into a global industry. Considering the associated exponential increase in publications dealing with diet conversion efficiency by BSF larvae, it is timely to suggest procedures to arrive at an improved harmonization and reproducibility among studies. This means establishing protocols for describing the basic experiment design, fly colony origin, rearing procedures, reference and experimental feeding substrates, and sampling preparations including microbiota and chemical analyses. Such standardised protocols are instrumental to allow conversion efficiencies to be calculated. Some of these parameters are relatively easy to describe such as giving the origin and rearing conditions, while others are more challenging (e.g. description of microbe community). In this article we discuss and propose such procedures with the aim to arrive at standardisation of how future resource conversion studies with BSF larvae are conducted and how results are communicated.


2020 ◽  
Vol 5 (1) ◽  
pp. 21-23
Author(s):  
Biplov Sapkota ◽  
Shristi Upadhyaya ◽  
Anuj Lamichhane ◽  
Rajendra Regmi ◽  
Kuldip Ghimire ◽  
...  

Hermetia illucens (Linnaeus, 1758)- Black soldier fly is a beneficial insect which has been used in simple systems, to treat organic waste efficiently and rapidly, and to produce animal feed ingredient and fertilizer as end products. These flies are naturally found in warmer parts of the globe. The incidence of Black soldier fly was recorded for the first time in Nepal in between April and May 2020 in the sub urban area of Chitwan District, Nepal. Identification of the insect was done in the Laboratory of Department of Entomology, Faculty of Agriculture, Agriculture and Forestry University, Nepal. Both adult and larval forms of the insect were identified based on the study of morphological characteristics of captured specimens using simple microscope and stereomicroscope. The record of this insect in Nepal opens up a new dimension for its use in bio-systems to treat organic waste and produce more sustainable ingredient for animal feeding, and rich fertilizer to be used in agriculture.


2020 ◽  
Vol 49 (2) ◽  
pp. 405-411 ◽  
Author(s):  
Matan Shelomi ◽  
Meng-Kun Wu ◽  
Shu-Min Chen ◽  
Jing-Jiun Huang ◽  
Christopher Glen Burke

Abstract Black soldier fly (Hermetia illucens L.) larvae are capable of valorizing waste by converting it into insect biomass that can be used as animal feed, leaving undigested residue that can be used as soil enrichment. Evidence is conflicting over whether larvae fed substrate containing pathogenic microbes emerge uncontaminated. Studies also differ on which clades comprise the species’ gut microbiome, and on whether and how diet affects these microbes. Using culturing and metabarcoding, the bacterial microbiota of black soldier fly larvae reared on two different kinds of food waste (postproduction soy pulp and postconsumer cafeteria waste) were analyzed, along with the microbes of their substrates. Little to no overlap was found between the wastes, the larvae, and the residues, but the larvae fed different foods had a significant percentage of their microbes in common. The data, in line with other works on this species, suggest the larvae have a conserved microbiota whose components vary geographically.


2019 ◽  
Vol 5 (3) ◽  
pp. 201-213 ◽  
Author(s):  
E.M. Nyakeri ◽  
M.A. Ayieko ◽  
F.A. Amimo ◽  
H. Salum ◽  
H.J.O. Ogola

The dual roles of efficient degradation and bioconversion of a wide range of organic wastes into valuable animal protein and organic fertiliser, has led to increased interest in black soldier fly (BSF) technology as a highly promising tool for sustainable waste management and alternative protein production. The current study investigated the potential application of BSF technology in the valorisation of faecal sludge (FS), a common organic waste in the urban informal settlements in low and middle-income countries. We evaluated the effect of different feeding rates (100, 150, 200 and 250 mg/larva/day), different feeding regimen and supplementation with other waste feedstock (food remains, FR; brewers waste, BW; and banana peelings, BP) on BSF larvae (BSFL) growth rates/yield and FS reduction efficiency. Results showed significantly (P<0.01) higher prepupal yield (179±3.3 and 190±1.2 g) and shorter larval development time (16.7 and 15 days) when reared on 200 and 250 mg/larva/day FS, respectively. However, different feeding regimes of FS did not significantly affect larval growth rate and prepupal yield (P=0.56). Supplementation of FS with other organic substrates resulted in significantly increased BSFL biomass production and substrate reduction, and shortened larval development time; with the effect was more pronounced when FS was supplemented with FR and at 30% supplementation. Protein:fat ratios for BSFL reared on FS, FS:FR, FS:BW were significantly (P<0.05) higher (2.51, 2.53, and 2.44, respectively) compared to FS:BP mixture (1.99). These results demonstrated that supplementation of FS with locally available organic waste can be used to improve its suitability as feedstock for BSF production and organic waste bioremediation from the environment. In conclusion, a daily feeding strategy of substrate containing FS supplemented with 30% organic waste co-substrate at feeding rate of 200 mg/larva/day can be used as a guideline for BSFL mass production and bioremediation of FS both at small- and large-scale level.


Detritus ◽  
2021 ◽  
pp. 31-40
Author(s):  
Moritz Gold ◽  
David Ireri ◽  
Christian Zurbrugg ◽  
Trevor Fowles ◽  
Alexander Mathys

Black soldier fly larvae (BSFL) treatment is an emerging technology for the valorisation of nutrients from biowaste. Selecting suitable substrates for BSFL treatment is a frequent challenge for researchers and practitioners. We conducted a systematic assessment of BSFL treatment substrates in Nairobi, Kenya to source more substrate for upscaling an existing BSFL treatment facility. The applied approach is universal and considers four criteria: 1) substrate availability and costs, 2) BSFL process performance, 3) product safety, and 4) waste recovery hierarchy. Data were collected from previous waste assessments or semi-structured key informant interviews and sight tours of waste producers. Waste nutritional composition and BSFL process performance metrics were summarised in the “BSFL Substrate Explorer”, an open-access web application that should facilitate the replication of such assessments. We show that most biowaste in Nairobi is currently not available for facility upscaling due to contamination with inorganics and a lack of affordable waste collection services. A mixture of human faeces, animal manure, fruit/vegetable waste, and food waste (with inorganics) should be pursued for upscaling. These wastes tend to have a lower treatment performance, but in contrast to cereal-based byproducts, food industry byproducts, and segregated food waste, there is no conflict with animal feed utilization. The traceability of substrates, source control, and post-harvest processing of larvae are required to ensure feed safety. The criteria presented here ensures the design of BSFL treatment facilities based on realistic performance estimates, the production of safe insect-based products, and environmental benefits of products compared to the status quo.


2020 ◽  
Vol 4 (4) ◽  
pp. 596-604
Author(s):  
Hendar Nuryaman ◽  
Suprianto ◽  
Suyudi ◽  
Nur Arifah Qurota A’yunin

Waste becomes a problems if not managed properly, moreover comes from market activities whose are always there every day. Youth of Al Hilal live near "Pasar Manis" in Ciamis District, West Java, which some of the members do not have jobs. One of the activities in an effort to bring income is to cultivate the BSF (Black Soldier Fly), as a new breakthrough in providing cheap protein sources for animal feed and fish. This community service activity aims to provide education and management services for BSF cultivation in order to be able to utilize the economic potential of organic waste management and cultivation results. The method of activity is in the form of community education and BSF cultivation iptek with 34 participants. Generally, the results provide a new alternative to get income and improve skills in BSF cultivation so that is better in its management. Then an increase in understanding of the prospects, economic, social and environmental benefits so that it becomes an alternative solution in obtaining income and reducing the problem of organic waste in the surrounding area. The response of activities obtained by 88.2% greatly increases knowledge; 8.8% enough to add knowledge; and 2.9% are mediocre.


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