- Resource recovery
- Production of insect biomass from excreta or organic waste
- Black soldier fly larvae (BSFL): productive sanitation, faecal sludge management - research at Swedish University of Agricultural Sciences, Sweden
Black soldier fly larvae (BSFL): productive sanitation, faecal sludge management - research at Swedish University of Agricultural Sciences, Sweden
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- Vinneras
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- Researcher in environmental engineering at Swedish University of Agricultural Sciences
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Re: Black soldier fly larvae (BSFL) as a product from productive sanitation and for faecal sludge management
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Wen introducing a manure based protein production system, the risk of disease transmission has to be evaluated and compared to other existing systems and the surrounding society. This will also influence the management of the products prior to usage, e.g. decide if heat or ammonia treatment is required prior to feeding and fertilizing with the products.
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You need to login to reply- joeturner
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Re: Black soldier fly larvae (BSFL) as a product from productive sanitation and for faecal sludge management
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Regarding Björn's paper - when it is said that there is reduction in Salmonella, what was tested - the sludge or the insects? Are there cross contamination issues relating to feeding black soldier fly larvae to animals or humans?
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You need to login to reply- Vinneras
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- Researcher in environmental engineering at Swedish University of Agricultural Sciences
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I think that the BSF could be a good way forward for latrine management. As far as I know at the moment there are some tests performed with batch systems for treatment of latrine in South Africa. Our focus is to develop a continuous system, so that it works like any other biological digester.
Our research are at a stadium where I see pilot scale testing in field being 1-2years awayu as there are several technical obstacles to manage before we hit the field and I would be really interested in collaboration with you aiming for implementation in Bangladesh.
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You need to login to replyCan we plan to test BSF in Bangladesh ? Pls advise.
Roshan
Senior Program Officer
Global Development Division
Water, Sanitation and Hygiene
Seattle - WA
Tel: +206 770 2453
email: This email address is being protected from spambots. You need JavaScript enabled to view it.
www.gatesfoundation.org
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You need to login to replyVinneras wrote: The contact in Uganda for the vermicomposting treatment is mr Allan Komakech at Makerere University contact email This email address is being protected from spambots. You need JavaScript enabled to view it.
Locally in Uganda have we not been working with BSF, as we still find to many outstanding questions remaining for pilot scale implementation from our side.
Mr. Komakech informed me that the project ended in April (and that he has since left to do a PhD in Sweden), but that there might be some ongoing activities under supervision of Dr. Charles Niwagaba (who seems to be involved in a lot of sanitation related activities here in Kampala).
Are there any more precise plans now to bring the tiger worm or BSF lavae to Uganda in the near future? I would like to include an exposure visit to these innovation in our next NGO sanitation working-group meeting if possible.
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You need to login to reply- Vinneras
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- Researcher in environmental engineering at Swedish University of Agricultural Sciences
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Re: On-site sanitation based on bio-additives and pit design (LSTH, UK and Tanzania, South Africa and Vietnam)
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Lalander, C., Diener, S., Magri, M., Zurbrügg, C., Lindström, A., Vinnerås, B. 2013. Faecal Sludge Management with the Larvae of the Black Soldier Fly (Hermetia illucens) - From a Hygiene Aspect. Science of the Total Environment 458-460, 312-318.
Inadequate and lacking sanitation and wastewater treatment systems can lead to the spreading of diarrhoeal diseases. One contributing factor in the lack of such treatment systems is the lack of economic incentives for stakeholders throughout the service chain. However, the organic fraction of the waste is high in valuable plant nutrients and could be reused in agriculture and as animal feed. For example, grown larvae of the
black soldier fly, Hermetia illucens L. (Diptera: Stratiomyidae), make an excellent protein source in animal feed, while the feeding activity of the larvae substantially reduces the dry mass of the treated material. This study examined the effect of black soldier fly larvae on the concentration of pathogenic microorganisms in human faeces and found a 6 log10 reduction in Salmonella spp. in human faeces in eight days, compared
with a b2 log10 reduction in the control. No increased reduction was observed for Enterococcus spp., bacteriophage ΦX174 or Ascaris suum ova.
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You need to login to reply- Vinneras
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- Researcher in environmental engineering at Swedish University of Agricultural Sciences
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The contact in Uganda for the vermicomposting treatment is mr Allan Komakech at Makerere University contact email This email address is being protected from spambots. You need JavaScript enabled to view it.
Locally in Uganda have we not been working with BSF, as we still find to many outstanding questions remaining for pilot scale implementation from our side. The BSF fly egg we have used comes from Fibl in Switzerland , contact, Stamer Andreas contact email This email address is being protected from spambots. You need JavaScript enabled to view it.
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You need to login to replyWho could I contact regarding the work done in Kampala? We are currently looking into disseminating these kind of sanitation innovations to our members in Uganda.
On an unrelated note: Have your tried using the fly larvae to treat chicken manure? In commercial chicken-farms a lot of that stuff in created at one place, and it is actually quite difficult to treat due to the high nitrogen load (birds don't produce urine). So combining food production for the birds with waste treatment would be a win-win situation.
Edit: www.hollowtop.com/finl_html/manureflies.htm seems to be a well tested technology option. Quite interesting from a IWRM point of view as it could reduce problems with the effluents from these farms here in Uganda.
Would it be possible to get some starter eggs from you, as I don't think those flies are very common here. How do you plan the distribution of "starter kits" for BSF composting anyways?
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You need to login to reply- Vinneras
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- Researcher in environmental engineering at Swedish University of Agricultural Sciences
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As of now we are working on lab scale, with a relatively broad perspective, evaluating management of both human and animal excreta with the BSF larvae.
According to the findings so far, the systems has been demonstrated to affect different organisms to varying degree (from not at all (Ascaris suum) to 7 log reduction within days (Salmonella spp.).
More information can be found in the following publication that will be available online soon:
Lalander, C., Diener, S., Magri, M., Zurbrügg, C., Lindström, A., Vinnerås, B. 2013. Faecal Sludge Management with the Larvae of the Black Soldier Fly (Hermetia illucens) - From a Hygiene Aspect. Science of the Total Environment (In Press).
Research on the BSF treatment system is ongoing.
In the same project, we also work with vermicomposting for onsite manure management at small farms, with pilot scale trials in Kampala (Uganda), with the aim of protein production. The system process 5-10 kg manure per day and when managed properly it produces approx. 40 kg of worms within four months.
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You need to login to replyBlack soldier fly larvae (BSFL): productive sanitation, faecal sludge management - research at Swedish University of Agricultural Sciences, Sweden
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Best regards,
Kim Andersson
Stockholm Environment Institute
Postbox 24218,104 51 Stockholm, Sweden
This email address is being protected from spambots. You need JavaScript enabled to view it.
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You need to login to reply- Resource recovery
- Production of insect biomass from excreta or organic waste
- Black soldier fly larvae (BSFL): productive sanitation, faecal sludge management - research at Swedish University of Agricultural Sciences, Sweden