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 The percentage of renewable water resources withdrawn is extremely high.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 […]
Publiceringsdatum
Författare
Erik Särner
Nyckelord (Keyword)
Water scarcity; Irrigation; Food production; World population; Population increase; Migration
Nummer
4
Årgång
72
Utgåva
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 […]
Publiceringsdatum
Författare
Angelica Lidén
Nyckelord (Keyword)
Drinking water, hollow fiber membranes, natural organic matter
Nummer
4
Årgång
72
Utgåva
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 […]
Publiceringsdatum
Författare
Douglas Hansson
Nyckelord (Keyword)
Reed beds, Svedala WTP, Pipe magazine, Detention basins, Horizontal Subsurface Flow Constructed Wetland
Nummer
4
Årgång
72
Utgåva
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 […]
Publiceringsdatum
Författare
Ivan Ssenozi, Magnus Larson, Tobias Persson
Nyckelord (Keyword)
Hydraulic system, energy losses, capacity, components, Venturi meter, pipe flow, loop, nodes
Nummer
4
Årgång
72
Utgåva