Blog from the Environmental Engineering Research Group at SLU
The 36 month meeting during June 2-3 for the run4life project was like everything else held like an online meeting. All presentations and discussions were made online. It was interesting to hear that all the pilot areas included in the project were progressing and people are moving into the separating houses in Helsingborg, Gent, Sneek and Vigo. We all looking forward to the final year of the project and the exciting results we will get from it.
Congratulations and welcome to SLU, we look forward to continue the collaboration in the future. Program Manager Madeleine Fogde is a trained teacher and currently program manager for the Swedish International Agricultural Network Initiative (Siani), which is coordinated by the Stockholm Environment Institute (SEI). Siani has a broad membership base and is a very inclusive organization that offers an attractive network for people working with agricultural research globally. She has worked extensively with low-income countries in Africa, including in a water supply and ecological sanitation program in Mozambique. She has a large worldwide network in agriculture, sanitation and women’s organizations.
David Jonsson har arbetat med utveckling av en biopolymer frÄn BSF-larvprotein och har nu avslutat sitt arbete. GÄ med i hans examensarbete för examensarbete i bioteknik för att fÄ veta mer.
David Jonsson has been working on development of a biopolymer from BSF larvae protein and now he has concluded his work. Join his Master Thesis presentation for degree project in biotechnology to find out more.
En ny studie bedömde inaktiveringen av ascarisĂ€gg under olika förhĂ„llanden och observerade att exponeringen av ascarisĂ€gg för högt pH (10,5â12,5) vid temperaturer <27,5 ° C under >70 dagar inte hade nĂ„gon effekt pĂ„ Ă€ggens livskraft. För att pĂ„skynda inaktiveringen av STH Ă€r en ökning av behandlingstemperaturen mer effektiv Ă€n en pH-ökning. Alkaliskt pH inaktiverade inte Ă€ggen utan kan förbĂ€ttra effekten av ammoniak, vilket troligen finns i organiskt avfall.
LÀnk för tillgÄng av artikeln: https://doi.org/10.2166/wh.2020.264
Senecal, J., Nordin, A., & VinnerÄs, B. (2020). Fate of Ascaris at various pH, temperature and moisture levels. Journal of Water and Health.
A new study assessed the inactivation of Ascaris eggs under various conditions and observed that the exposure of Ascaris eggs to elevated pH (10.5â12.5) at temperatures <27.5 °C for >70 days had no effect on egg viability. To accelerate the inactivation of STH, an increase in the treatment temperature is more effective than pH increase. Alkaline pH alone did not inactivate the eggs but can enhance the effect of ammonia, which is likely to be present in organic wastes.
Follow the link to access the article: https://doi.org/10.2166/wh.2020.264
Senecal, J., Nordin, A., & VinnerÄs, B. (2020). Fate of Ascaris at various pH, temperature and moisture levels. Journal of Water and Health.
On June 11th @ 9h00 Jenna Senecal will defend her thesis titled âSafe Nutrient Recovery from Human Urine – System and Hygiene Evaluation of Alkaline Urine Dehydration.â You are most welcome to watch the defence. One may come in person to Framtiden room in the MVM building at SLU (max 25 people) or join online.
For online viewing, one can stream it from facebook at our departmental webpage. Or join via zoom: https://slu-se.zoom.us/j/65645045319 with password: 528646
Evgheni Ermolaev from Environmental Engineering group answers a readerâs question in an article in Forskning & Framsteg.
Read the whole article (in Swedish, use google translate) at Forskning & Framsteg
Contact: Evgheni Ermolaev
Kretsloppstekniks Evgheni Ermolaev svarar pÄ en lÀsarfrÄga om vÀxthusgasutslÀpp i en artikel i Forskning & Framsteg.
LÀs hela artikel pÄ Forskning & Framsteg
Kontakt: Evgheni Ermolaev
VĂ„r senaste publikation om fluglarvskompostering fick titeln Process efficiency and ventilation requirement in black soldier fly larvae composting of substrates with high water content och har nyligen blivit publicerad i Science of the Total Environment. I denna studie har vi undersökt pĂ„verkan pĂ„ processeffektiviteten i fluglarvskompostering nĂ€r vatteninnehĂ„llet i substratet ökar. Vi anvĂ€nde de samlade uppgifterna för att göra en modell som förutspĂ„dde den erforderliga ventilationen för att uppnĂ„ en behandlingsrest torr nog att möjliggöra torr separering av larver frĂ„n behandlingsrester i slutet av komposteringen. Till skillnad frĂ„n vad andra studier har funnit, hĂ€vdar vi att det Ă€r möjligt att fluglarvskompostera substrat med vatteninnehĂ„ll 80 – 90 % och torrseparera larverna frĂ„n behandlingsresten. För underlag med vattenhalt > 90 % var det svĂ„rare, eftersom processeffektiviteten minskade kraftigt medan ventilationsbehovet ökade.