In Sweden, as is the case in many places, there are signs of a disconnect between actors working in waste sectors and those working in farming, food, and agriculture. Yet there is a desire to bridge this gap. On 5 November 2020, the Swedish Nutrient Platform (SNP) and the project End-of-wastewater jointly held a thematic workshop on the topic of recirculating nutrients from urban to rural areas. In this multi-stakeholder digital workshop, 40 actors from the Swedish food and waste management sectors discussed desired characteristics of recycled fertilizer products derived from human excreta and wastewater, including how their uptake could be promoted. The workshop was guided by a literature review and a suite of interviews and surveys that were conducted prior to the workshop. The report summarizes the results from the workshop.
Category: English
Can Sweden achieve a circular economy for phosphorus?
The need for a more circular use of nutrients, notably phosphorus (P), has been widely discussed in Sweden, not least in response to the release of the new enquiry on sustainable use of sewage sludge (SOU 2020:3). But what would a transition to a circular economy for phosphorus look like? How much phosphorus is needed for biomass production in Sweden? And what possibilities are there to replace the widely used virgin mineral phosphorus with phosphorus from secondary sources?
Vinnova Funding
Our company, Sanitation360, that is looking to commercialize the urine drying technology developed by our group received Vinnova funding to develop a business model for implementing the urine treatment system in South Africa. This is an ideal starting point as in and around Durban, South Africa, there is increase interest in urine-diverting toilets and SLU has an on-going collaboration with the University of KwaZulu-Natal. The project start now and will run till December 2021.
Jenna Senecal awarded the ÅForsk
Jenna Senecal has been recognized as one of Sweden’s top ten innovative entrepreneurs by receiving the 2021 ÅForsk Entreprenörsstipendium. The ÅForsk Entrepreneurship Scholarship is awarded in collaboration between the ÅForsk Foundation and the industry organization Swedish Incubators & Science Parks. Sweden’s 10 most innovative entrepreneurs are appointed during Sweden’s Innovation Parliament 2021 and are awarded SEK 200,000 each. The applicant entrepreneur must have a connection to the university environment, either as a student, doctoral student, researcher or teacher.
New master student writing thesis about
My name is Linnéa and I am doing my master thesis at Uppsala University (UU) and the Swedish University of Agricultural Sciences (SLU). I am currently in my last semester as a civil engineer in molecular biotechnology at UU. I was born and raised in Västerås but have lived and studied in Uppsala since 2016. I had never been to SLU before my master thesis, so I think it is exiting to discover new environments and meet new people during my semester here writing my master thesis!
My thesis is a collaboration between UU, SLU and two companies called Nanoform Science and Sanitation 360. Nanoform Science is a company that has developed a technology for manufacturing very acidic metal oxide surfaces which should have antimicrobial properties. Sanitation 360 is a company that wants to turn human urine into dry fertilizer by using treatment systems in connection with urine-separating toilets. These two companies are both interested in investigating the properties of these very acidic metal oxide surfaces. Nanoform Science wants to investigate whether the surfaces have antimicrobial activity, since they thereafter could develop the surfaces into environments where biofilms thrive, e.g. hospitals, dental clinics and sewage systems. Sanitation 360 is interested in the surfaces since biofilm growth in their treatment system leads to loss of nutrition in their fertilizer product.
During my work, I will mainly focus on developing a method for growing urease-positive biofilms, then I want to test the method on the surfaces from Nanoform Science.
Docent lecture: Annika Nordin
Last Wednesday, Annika Nordin in the Environmental Engineering group held her docent lecture Safe resource recovery – managing microbial hazards of wastewater reuse systems. If you for some reason missed it, don’t fret, you can watch it here:
Emma Enström investigates food systems in Skåne
My name is Emma Enström and I am studying for a master degree in Strategic Environmental Work at Lund University. My master in science contain topics like contaminated soil, blue-green solutions, environmental impact assessments but also about circular economy, life cycle assessments, policy instruments and system assessments. I am writing my master thesis for Sweden Water Research in collaboration with Robin Harder in the Environmental Engineering Group.
The study aims to map nutrient flows in food system within the region of Skåne, which are linked to the global food system. The study includes internal and external flows of nutrients (N, P and K) within the existing food, agricultural and residual electricity system. The study will thus examine opportunities and barriers in a future with a more sustainable management of these nutrients. The study is intended to contribute to the ongoing discussion in Skåne regarding nutrient flows in the region and provide a greater understanding of nutrient flows related to food production, consumption and residual flows. The study will also explore future scenarios to contribute with knowledge of whether food consumption in Skåne can be supported by local food production. The method I will use has been designed by Robin Harder and is a system assessment that takes into account the connections between a regional food system and the global food system in which it is embedded.
Welcome to our new PhD-student, Abood!
Hi! My name is Abdulhamid Aliahmad, and since it’s hard to read and pronounce my name correctly, I go by Abood. I am an environmental engineer with multi environmental backgrounds gained through my bachelor’s degree, a 9-month internship, and two former jobs in Palestine focusing mostly on sanitation. I have recently earned my master’s degree in energy & environmental engineering with focus on Sustainability Engineering from Linköping University and my thesis has been carried out together with Volvo Construction equipment in Carbon Neutrality domain using GHG Protocol.
Most recently, I was fortunate to become a part of the environmental engineering group in the Department of Energy and Technology at SLU as a new doctoral candidate working with Jennifer as my supervisor. My contribution to the project will be;
- sustainability assessment for the nutrient recovery technologies from sanitation, mostly urine. The assessment will be performed using TIS (technology innovation systems), LCA (life cycle assessment) tools, and possibly QMRA (quantitative microbial risk assessment).
- multi-criteria sustainability assessment of systems will be performed using case studies.
Is bokashi composting better than conventional composting?
Evgheni Ermolaev, researcher in environmental engineering answers a reader’s question about the difference between bokashi and conventional composting.
Read the answer (in Swedish, use google translate) at Forskning & Framsteg
Prithvi Simha’s pre-dissertation PhD seminar
On 5th of March, Prithvi had his pre-dissertation seminar: Alklaine Urine Dehydration – how to dry urine and recover nutrients. David Gustavsson from VA SYD/Sweden Water Research was Prithvi’s opponent at the seminar and he quizzed Prithvi on his published papers as well as his preliminary thesis (or kappa). Overall, it was very interesting and long discussion ranging on topics like reactive nitrogen and ammonia capture, the use of different alkaline substrates, the use of IoT in sanitation and global sanitation outlook. With this successful seminar, Prithvi will now proceed further and have his PhD defence which is scheduled to be held on the 2nd of June in Uppsala and via zoom online. We thank David again for his thorough and insightful discussion on the topic!