Effects of water scarcity, food production and migration / Effekt av vattenbrist på matproduktion och migration
Recent UN reports show that most countries in northern Africa and the Middle East are facing water shortage. The percentage of renewable water resources withdrawn is extremely high. The population growth in most of these countries is estimated to be very high. Thus, the population is estimated to grow by 50 % in several countries […]
Membran inom svensk dricksvattenproduktion / Membrane filtration in Swedish drinking water production
The interest for membrane technologies has increased in Sweden during the past years. With this in mind, the Svenskt vatten utveckling (SVU) funded project “GenoMembran” was realized, to study improved removal of natural organic matter (NOM). Ultrafiltration with coagulation pretreatment could produce water of similar quality of current conventional treatments, while a tighter membrane, a […]
Förslag till reducering av framtida interna vattenflöden vid Svedala avloppsreningsverk genom ombyggnad av vassbäddar / Proposal on how to reduce future internal flows at Svedala wastewater treatment plant by repurposing reed beds
In 2004 Svedala wastewater treatment plant constructed ten reed beds. The beds had, however, to be taken out of commission after just a few years, due to complications. Eight beds now stand empty, while two are up and running for a limited trial period. The municipality is interested in the possibility of converting the remaining […]
Modeling energy losses in the hydraulic system of Vombverket water treatment plant / Modellering av energiförluster i Vombverkets hydrauliska system
Vombverket, one of the major water treatment plants in south Sweden, originally built in the 1950’s, was significantly expanded in the 1990’s. Because of this expansion, the water flow path was prolonged. The plant was not optimized for the new process design with regard to the hydraulic conditions, but substantial pressure losses were introduced through […]
Sexton år senare, kommentarer till debattartikel Vatten – demokrati och inflytande med ett nytt EG-direktiv (Vatten 56:51-55) / Sixteen year later, comments on the article Water – democracy and influence with a new EC-directive
Med anledning av arbetet med EUs vattendirektiv skrev jag 2000 en debattartikel med titeln »Vatten – demokrati och inflytande med ett nytt EG-direktiv» (Karlsson 2000). Eftersom vattendirektivet hade en tidplan med flera delmål kändes det då frestande att beskriva ett framtidsscenario. Artikeln andas enorm optimism och entusiasm – svår att förstå så här i efterhand. […]
Klimatanpassning mot urbana översvämningar genom transprofessionell samverkan / Adapting to flood risk in a changing climate through transprofessional cooperation
Due to climate change, more extreme precipitation is expected to strike cities around the world. Urbanization along with densification of urban areas magnifies the impact of heavy rainfall. More robust and flexible storm water systems that mimic processes of the hydrological cycle are needed to make urban environments more flood resilient. Such systems must be […]
UV/VIS spectroscopy as a method to characterize well water quality / UV/VIS-spektroskopi som metod att karakterisera brunnsvattenkvalité
The applicability of UV/VIS spectroscopy for the characterization of well water quality was studied by analyzing 219 private wells from sparsely populated areas of Finland. In addition to conventional water quality indicators, such as conductivity, nitrate and DOC, a series of UV/VIS spectroscopic parameters were determined: A-224, A-254, A-280, A-365, A-436, the area under 250–350 […]
Kostnads- nyttoanalys av införandet av hållbar dagvattenhantering som riskreducerande åtgärd mot översvämning – med fokus på monetär värdering av ekosystemtjänster / Cost-benefit analysis of sustainable drainage system as flood risk reduction measure in urban areas – Focusing on monetary valuation of ecosystem services
In this study a cost-benefit analysis (CBA) of a sustainable drainage system (SuDS) as a risk reduction measure is performed. The case is applied on the flood prone area Söderkulla in Malmö, where the focus of the study is quantification and valuation of the expected increase in ecosystem services as a result of the SuDS. […]