South Ormastorp is a constructed wetland in the Råå river catchment area located in the northwest of Skåne. The aim of the wetland is to decrease the diffuse leaching of nutrients from Råå river to Öresund. During three weeks South Ormastorp was intensively studied. Runoff was continuously measured and water samples were collected daily (Monday–Friday), […]
In this study, partial nitritation has the aim to oxidise a fraction of ammonium (about 50–60 %) into nitrite without following oxidation to nitrate. Experiments performed during eight months describe partial nitritation of supernatant from dewatering of digested sludge at Himmerfjärden wastewater treatment plant in the south Stockholm region. The process was the first step […]
Författare LUIZA GUT, ELZ BIETA PLAZA, MAJA DLUGOLECKA and BENGT HULTMAN
Eutrophication of lakes is a serious problem, especially in agricultural areas. It is mainly due to external and internal loads of phosphorus (P), which increase the P concentration in the lake water. Lake Bornsjön is a reserve source of water supply for Stockholm and is located 25 km southwest of the city. Maximum yearly concentration […]
Reliable mathematical models that can describe the mechanisms in Slow Sand Filters, SSF, represented by different filter parameters are yet absent. The extremely complicated interactions between physical, chemical, biological and hydraulic conditions are shown in a simplified model. An attempt to apply the rapid filtration empirical formulas for SSF is described in detail. The need […]
Författare HUSAM SALEH JABUR, JONAS MÅRTENSSON and GEZA ÖLLÖS
This article intends to describe how the German federal states (Bundesländer) chose to implement the public participation requirements (article 14) of the water framework directive (WFD). We describe which level of ambition they intend to reach, which models and tools they use and what kind of resources they have at their disposal to involve external […]
Författare UWE STEPHAN och JAN-ERIK GUSTAFSSON
Nyckelord (Keyword) Public participation, participatory process, Germany, Sweden, external actors, EU water framework
directive, financing, system of charges, cooperation.
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