TVÄRVETENSKAPLIG FORSKNING – VILLKOR FÖR LÖSNING AKVATISKA MILJÖPROBLEM / Transdisciplinary research – solution to persistent problems in the aquatic environment
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 […]
GRANULAR IRON REACTIVE BARRIERS FOR THE DEGRADATION OF CHLORINATED SOLVENTS IN GROUNDWATER / Nedbrytning av klorerade lösningsmedel i grundvatten med hjälp av granulärt järn reaktiva barriärer
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 […]
A UNIVERSAL METHOD FOR TIGHTNESS TESTING OF PLASTIC PIPELINES
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 […]
LAKVATTENRENING IDAG OCH IMORGON-TEKNIKÖVERSIKT OCH NÅGON FUNDERING / Landfill leachate treatment today and tomorrow. A technical review and some thoughts
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 […]
VÅTMARK OXELÖSUND -RESULTAT OCH ERFARENHETER FRAN SEX ÅRS DRIFT / Wetland Oxelösund – the first six years of operation
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 […]
När avloppet blev ideologi Diskussionen om spillvattenlösningar i Skurups kommun 1970–1982 / When sewerage was ideology Discussion of wastewater treatment localization in the municipality of Skurup 1970–1982
Local politics can be complicated. However, the construction of a wastewater treatment plant is very seldom a topic for disputes. But in the case of Skurup municipality, Sweden, it grew to become an issue that took 12 years to settle. The local council discussed whether the sewerage water should be treated in a new plant […]
Infiltration av lakvatten från specialceller i bioceller / Infiltration of leachate from special cells into biocells
To what extent can infiltration be carried out and which volume can be infiltrated? At the landfill Spillepeng of SYSAV, Malmö, infiltration of leachate has been practiced as a treatment method since 2001. A number of chemical parameters for infiltrating leachate and infiltrated leachate at the landfill Spillepeng have been investigated. Further on, a chemical-hydraulical […]
Wastewater treatment Systems and the Implementation of constructed Wetlands in Atitlán Lake Basin, Guatemala
High population growth and an augmented tourist industry in the Atitlán basin have lead to increases in the amount of wastewater discharged into the lake. The polluted wastewater has a negative effect on the lake’s and streams’ ecosystem in the basin. Drinking water that is taken from the lake or the streams is highly polluted […]
Extrema dygnsregn och trender i Skåne och på Västkusten / Extreme daily rainfall and trends in Skåne and the west coast
Series of daily precipitation including 89 years from Malmö, Halmstad and Göteborg have been analyzed as well as daily precipitation from 230 stations in Skåne in the period 1961–1990. The distribution in space and time has been investigated, and also the relation between daily rainfall and different parameters. The most extremeindependent events have occurred rather […]