The Cary 620 FTIR microscopes coupled with Cary 660 IR spectroscopes and FTIR microscopy is ready for microplastic analyses


After investing 1.5 million Swedish Crowns, the new Cary 620 FTIR microscope coupled with Cary 660 IR spectroscopes and FTIR microscopy is finally installed and ready for operation for analyses of microplastics in Department of Energy and Technology. Using the Focal plane array detector and the FTIR spectrophotometer, the instrument will be used to implement chemical imaging to identify, quantify and determine the particle size of micro plastics and other substances.  The instrument is homed by Environmental technology group under the responsibility of Sahar Dalahmeh.

Participatory design of biochar filters for small scale wastewater treatment


FORMAS has granted 3 mkr to implement multi-actor engagement and particpatory design approach to understand how socio-technical factors affect the development of biochar-based systems as an alternative for onsite wastewater treatment in Sweden. Based on the participatory design criteria, laboratory and demonstration biochar-based treatment systems will be implemented. The technical performance and maintenance and operation requirements will be evaluated with the relevant stakeholders. Sustainability of biochar solution will be assessed in a multi-criteria sustainability assessment, including social, economic and environmental impacts. The project is lead by Sahar Dalahmeh from the environmental technology group.

Eight million Swedish kronor to implement research about Cities with less microplastics


With a total fund of 8 million Swedish crown, Sahar Dalahmeh her collaborators will evaluate contribution of stormwater from roads in polluting the environment with microplastics and will investigate how to integrate green infrastructure into pollutant removal, by assessing the potential, efficiency and design of road-side filters (bark and biochar) for removing MP from stormwater, to function as planting sites and to retain water. The project comprises four work tasks: 1) To assess the composition, particle size and quantities of MP in stormwater from different urban sources; 2) to assess and compare the efficiency and potential of road-side filters made of biochar or bark filters in removing MP and in acting as green beds, and compare them with soil beds; 3) to develop a conceptual design for road-side green filters for MP removal; and 4) to assess their environmental sustainability in terms of e.g. climate change and water quality impacts. The project will be implemented within four years in collaboration with researchers from Aalborg University in Denmark and Malmö University

The Susana webinar on Sanitation and Employment aired 21/11 is now available online


In this seminar, moderated by Alejandro Jiménez of the Stockholm International Water Institute, different aspects of employment in the sanitation sector are discussed. Rémi Kaupp from WaterAid tells us about the findings presented in a new WHO report on the Health, Safety and Dignity of Sanitation Workers. Martin Mawajje from the University of KwaZulu-Natal (South Africa) describe how the emptying services in informal settlements can be formalised using a case from Kampala, Uganda as example. Daniel Ddiba, from the Stockholm Environment Institute tells us about a tool they have developed called REWAMP that can estimate and compare the circular economy potential of sanitation derived products from different sanitation technologies. The last presenter is Cecilia Lalander from our group that gives an example on how black soldier fly larvae treatment can be implemented by a sanitation entrepreneur. 

Global Webinar: Sanitation and Employment World Toilet Day 2019


Ask not what employment can do for sanitationask what sanitation can do for employment”.

Commemorating World Toilet Day 2019, Sida and partnersincluding SEI, SLU, WaterAid, SIWI, Univ of KwaZulu-Natal and SuSanA invite you to an inspirational webinar about the excellent yet untapped drivers for business, entrepreneurship and job opportunity that the sanitation value chain represents. While doing so, we will bring attention to critical challenges that workers in the sanitation industry often face and the needed actions being taken to tackle them.

Come and join the conversation on Thursday 21 November at 14:00-15.30 CET to learn more about improving the business of sanitation, for the sanitation workforce and the global communities they serve.

Join the webinar here:

Removal of Selected Pharmaceuticals and Personal Products in Wastewater Treatment Plant in Jordan


In collaboration Othman Masahgbeh (RSS- Jordan) and other researchers in Lincoln University, Sahar Dalahmeh from our group has published an article Removal of Selected Pharmaceuticals and Personal Products in Wastewater Treatment Plant in Jordan in the journal, Water.

The authors concluded that the highest average concentrations of personal care products (PPCPs) which were detected in treated wastewater were for carbamazepine, sulfamethoxazole, caffeine, and cotinine. This study clearly showed that incomplete removal and/or degradation of PPCPs takes place in As-Samra WWTP, the biggest and most advances WWTP in the country. Less effort has been made to minimize the levels of PPCPs contaminants at their sources, especially at home, pharmacies, and hospitals. Therefore, there is a need in Jordan to raise public awareness about the impact of these contaminants on water and the food cycle. This awareness will help the local authorities to implement any future policies that cover pharmaceutical waste management and handling at home, pharmacies, and hospitals.

Feature Paper Invitation: Special Issue “Biochar for the Environmental Wastewater Treatments” in Applied Sciences


The following special issue which Sahar Dalahmeh from our research group is guest editing will be published in Applied Sciences, is now open to receive submissions of full research articles and comprehensive review papers for peer-review and possible publication. We invite prospective authors to submit innovative and high-quality papers with original perspectives on any of the PIC-related topics.

Chea Eliyan joins Kretsloppsteknik as a PhD student


I am Chea Eliyan, and I recently joined the Environmental Engineering Research Group of the Department of Energy and Technology, SLU, in a sandwich mode Ph.D. program. As part of this program, I will spend half the time here at SLU and another 50% time at my home country, Cambodia at the Royal University of Phnom Penh (RUPP). The SIDA-RUPP bilateral program fully supports this study as well as RUPP’s research capacity development.

Xiaoqin Zhou on research exchange at SLU from USTB


Dr. Xiaoqin Zhou, Assistant Professor of University of Science and Technology Beijing (USTB) is on a three week research exchange at Kretsloppsteknik. Yesterday, at a lunch seminar organised by the group, Xiaoqin presented about USTB and her own research activities. Specifically, she talked baout “toilet revolution” in rural China and how the country is currently in the process of upgrading its rural sanitation infrastructure. The “toilet revolution” campaign was launched by the Chinese central government since 2015 to improve the sanitary conditions in Mainland China. Thereafter, several campaigns have been launced in recent years such as“ National Tourism Reinvent Toilet Campaign” and “new toilet for rural toilet system Campaign” led by China National Tourism Administration (CNTA ), now called as Ministry of Culture and Tourism of the People’s Republic of China, and Ministry of Agriculture and Rural Affairs.

Social aspects of recycling household wastes: perspectives from Jordan


We were at the Hashemite University in Jordan last week, teaching a group of young students how we can safely recycle different household waste fractions. As part of this week-long course, we organised a day of interactive seminars and a role playing game to improve awareness among the students about the psychology, decision making, and socio-technical aspects of recycling waste.