Implementation of demonstration biochar filter for small-scale sewage treatment funded by Swedish EPA

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The Swedish Environmental Protection Agency decided to grant Sahar Dalahmeh, a researcher at the Swedish University of Agricultural Sciences, 475 000 SEK to implement demonstration biochar filter for Small-scale Sewage Treatment”. The project intends to scale the laboratory system to full scale module to treat single- household wastewater. Within the project, system’s function and treatment ability as well as outgoing water quality will be evaluated. The Projects period is August 2018-July 2019.

Demonstrations biokolsanläggningar för småskalig avloppsrening finansierades av Naturvårdsverket

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Naturvårdsverket beslutade att bevilja Sahar Dalahmeh, forskare på Sveriges Lantbruksuniversitet 475 000 kronor för projektet “Demonstrationsprojekt av biokolsanläggningar för småskalig avloppsrening”. Projektet avser att skala upp laboratoriesystemet till full skala modul som behandlar avloppsvatten avsende övergörande ämne och mikroföroreningar. Det som utvärderas är systemets funktion och behandling förmåga samt utgående vatten kvalité. Projektsperiod är September 2018- juli 2019.

What does the term ‘ecotechnology’ mean?

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In 2015, the term ‘ecotechnology’ was used as one of the themes for a funding call by the joint Baltic Sea research and development programme BONUS. The call defined areas where ecotechnologies could be applied, but did not explicitly define the term itself.  Against this backdrop, researchers including Jennifer McConville from our group decided to systematically review the literature on the use of the term ‘ecotechnology’ to inform the future work of the BONUS RETURN project. Many articles simply use the term as a “buzzword” without offering a definition of the term. However, the review found 49 articles with explicit definitions. These definitions contain a variety of embedded concepts for describing the types of technologies, the benefits and the processes that can be seen as ecotechnologies. We clustered these concepts into a conceptual framework that we feel captures the multiple perspectives represented in the term ecotechnology. Note that several of these concepts may be in conflict with each other. This framework is offered as a starting point for discussion around a possible common vision of ecotechnology, or at a way for authors to be transparent about the concepts embedded in their use of the term. On the basis of this review the author propose the following definition for use in the BONUS RETURN project:                                                                                                                                          ‘‘Eco-technologies are human interventions in socialecological systems in the form of practices and/or biological, physical, and chemical processes designed to minimise harm to the environment and provide services of value to society’’ 

Summer School Insects as Food and Feed

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Last week, Viktoria Wiklicky from our research group participated in the Summer School “Insects as Food and Feed – from producing to consuming” organised by Wageningen University.  The summer school looked at various aspects of the insect food and feed chain, from from genetics to farming, handling/logistics, processing, marketing and consumption. The course was very well received by its participants, many of whom almost bombarded the lecturers with a range of interesting questions!  One highlight was the study visit to Belgium where participants spent a whole day at the Thomas More University of Applied Sciences and the University of Leuven, receiving lectures and a tour through the research facilities, with focus on their ongoing insect projects. 

The 6th Dry Toilet Conference, Finland

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Prithvi Simha, PhD student at kretsloppsteknik, participated in the 6th International Dry Toilet Conference that was held in Tampere, Finland, between 22-24 August. Prithvi presented our ongoing research on alkaline urine dehydration technology and shared experiences of installing & operating a household-scale urine dehydration unit for three months at the SLU campus. 

New intern working on fly larvae composting

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Meet Panav Gupta – the group’s latest intern from India who is currently working with the black solider fly team. During his bachelors program in civil engineering, Panav was very interested in the field of waste management, especially the potential and economic outlook of using Black Soldier Fly Larvae (BSFL) for treating various types of waste. He is visiting our group at SLU for a two month long internship that began this July. During this time, he will learn about rearing and using BSFL for treating mussels and pig feed as well as understand the prospects of using BSFL for treating lignocellulosic biomass like rice straw – a possible solution for the problem of stubble burning  in North India.PC: Giulio Zorzetto

Crispy fried black soldier fly larvae!

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After rearing about 10.000 larvae on food-graded feed (toast bread) it was time for the big harvest at our greenhouse! After purging and freezing the larvae, we seasoned portions of them with either garlic, lime juice, onions, mint, vinegar, chilli, salt or olive oil and let them soak over night. The result was absolutely amazing – fried for about 5 mins at medium heat, the larvae turned very crispy and added a perfect note to the rest of the meal. They were also enjoyed as snack, just like a bag of chips. Coming in different flavors, you could almost not stop munching on them!                                                                                                                                                                                      

New Publication: Hygiene aspects of urine drying technology

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In a new paper published in Water Research, Senecal et al. assessed what hygienic health risks may occur when human urine is dehydrated. The experiment was set up to simulate that the last person using the toilet (before the dehydration medium is changed) is contaminating the medium with misplaced faeces, with no time for dehydration of the urine, i.e. a worst-case scenario. It was found that urine dehydration in itself achieved a concentration < 1 A. suum per 4 g of dehydrated medium which fulfils the WHO guidelines for unrestricted use.

Research exhibition at University of Dar es salaam

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Alice Isibika, PhD candidate at Kretsloppsteknik, participated in University of Dar es salaam’s Research Week Exhibition. The event showcased research, innovation, public service and knowledge exchange activities of the university’s academic staff and students to the public. In the post-graduate student projects category, Alice was placed third winner at the first phase and the second winner at the second phase.PC: Ramadhani Kinyogoli

Avloppets kväve och humus bör också återvinnas

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Replik i Dagens Nyheter till Miljöministerns debattartikel. I en repliken argumenterar Håkan Jönsson och Björn Vinnerås tillsammans med 12 andra personer för att man måste titta bredare än att återvinna fosfor ur avloppsslam om man vill öka hållbarheten. https://www.dn.se/debatt/repliker/avloppets-kvave-och-humus-bor-ocksa-atervinnas/