Wetland Oxelösund was established in 1993 to remove nitrogen from wastewater before discharge to the Sea. Since it was the first full-scale wetland for nitrogen removal in pre-treated municipal wastewater in Scandinavia, an elaborate monitoring program was tied to the operation of the wetland. The basic monitoring was primarily aimed at mass-balance calculations to estimate […]
Författare
JONAS ANDERSSON, HANS BERTIL WITTGREN och PETER RIDDERSTOLPE
Nyckelord (Keyword)
constructed wetland, Oxelösund, nitrogen, ammonium, phosphorus, BOD, indicator micro-organisms
Årgång
2000
Nummer
4
Utgåva
Landfill leachate treatment methods are discussed and their effects are reviewed. The lack of agreement between actual treatment effect and the goals and methods that have been proposed by the Swedish Environmental Protection Agency are elucidated. The knowledge of what the recipient that is exposed for land-fill leachate actually can stand is argued as the […]
Författare
KENNETH M. PERSSON. LARS BEVMO och KENTH HASSELGREN
Nyckelord (Keyword)
landfill leachate, treatment methods
Årgång
2000
Nummer
4
Utgåva
A method for tightness testing of pipelines made from viscoelastic materials obeying the power-law is described. Both theory and experiments show that creep effects will be ”frozen in” during a certain period of time, long enough for measuring the tightness of a pipeline or vessel. The time sequence may be scale up and down as […]
Författare
THOR MELAND
Nyckelord (Keyword)
plastic, pipeline, testing
Årgång
2000
Nummer
4
Utgåva
This paper presents the results of batch and column experiments that investigated the degradation of chlorinated solvents bv zerovalent granular iron. These experiments were designed to produce data essential for the installation of a field-scale permeable reactive barrier at a field site with groundwater contaminated bv perchloroethylene (PCE) and other less chlorinated ethenes. The batch […]
Författare
ROGER B. HERBERT, ANNA NORDQVIST, ANN-CHRISTINE WlKLANDER, and JOHAN ERICSSON
Nyckelord (Keyword)
perchloroethylene, reactive barrier, zerovalent iron, solven
Årgång
2000
Nummer
4
Utgåva
Transdisciphnary research needed to understand persistent problems in the aquatic environment. An overview of the aquatic environmental problems in Swedish coastal waters over the last decades, shows that eutrophication and fisheries mismanagement are persistant problems which seem to defy attempts to implement a long-term solution. These problems appear with different intensity in time and space […]
Författare
ANDERS CARLBERG
Nyckelord (Keyword)
adaptive management; integrated coastal zone management (ICZM); UNCED; EU; coastal fishery; eutrophication; social science
Årgång
2000
Nummer
4
Utgåva
To treat water of varying quality, composition and origin in constructed wetlands has attracted increased attention in recent years in Sweden. In agricultural districts this interest has been manifested by the creation of wetlands to prevent nutrient leakage, while in urban areas by the establishment of wetlands/ponds to purify and balance storm water flows, or […]
Författare
HELENA KRANTZ och MA TTIAS HJERPE
Nyckelord (Keyword)
wetlands, dams, wastewater, stormwater, recreation, polishing, land use conflicts, city-planning
Årgång
2000
Nummer
4
Utgåva
EU has recently adapted a frame directive for Water. Within three years the present organisation for Water Conservation in Sweden has to be completely restructured. At regional level there will be a number of River Basin Authorities. Agencies for implementation will be organised at local levels and district levels, based on geographically identified river basins. […]
Författare
PER-OLOF HAKEMAN
Nyckelord (Keyword)
river basin management, people’s participation, co-operatives, Southern Sweden
Årgång
2000
Nummer
4
Utgåva