Några anmärkningar om jordbruksbevattning med hjälp av avloppsvatten med utgångspunkt från Källby avloppsreningsverk
A historical review of the driving forces behind use of wastewater for irrigation for agriculture in Sweden is presented, starting with a detailed description of the work done at the wastewater treatment plant Käll-by in the city of Lund, south Sweden. Different initiatives have been taken to reduce water shortage in agriculture during the years. […]
PFAS förorening i grundvatten
Aqueuous Film Forming Foam (AFFF) containing Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) is one of the major sources of groundwater contamination in Sweden. Groundwater contamination caused by the use of AFFF in correlation to fire training events was investigated in Kallinge, Sweden. At the site groundwater was previously used as a drinking water source consequently affecting […]
Vilka klimatfaktorer är viktigast? Del 1
Global warming is leading to more extreme short-duration rainfalls, which need to be considered when designing our society. This is commonly performed by using climate factors, representing the estimated future relative increase in short-duration extremes, to upscale design values based on historical observations. The most recent estimation of climate factors for Sweden was done some […]
Snösmältning och avrinning från gröna extensiva tak
Green roofs are a popular way to include nature in an urban environment. How is runoff from green roofs in the cold and snow-covered part of the year, when growth media freeze, plants are dormant and covered with melting snow? This paper investigates 11 years of runoff from three green extensive roofs in Oslo, Norway. […]
Debatt: klimatrelaterad havshöjning: ett problem för Sverige?
Large changes are planned and implemented to meet the negative effects of the global warming forecasted by IPCC (Intergovernmental Panel on Climate Change). For example, some municipalities in Sweden have plans for protection walls against future rising sea levels and decisions have also in some cases been taken to build walls. All these measures and […]
Examining biofilm growth and metabolism of Escherichia coli at laboratory scale using geoelectrical methods
To link geophysical field data to specific biological phenomena, controlled laboratory experiments are needed for the understanding of the response of geophysical parameters to changes in biological conditions. In this study, suspensions of bacteria were mixed with sand to create a biofilm growing on a surface and these mixtures were monitored using the geoelectrical spectral […]
Regn i Båstad
On 18 August 2022, an extremely very local 45 minutes storm fell over Båstad. There are several observations close to or more than mm. In the summer 1937 there was a famous long-lasting rain, for which the daily value was 150 mm. During the summer 2007, there were many large rainstorms of around 75 mm. […]
Slamförsök på åkermark i Skåne – 40 års erfarenheter av slamspridning
In this article, we present experiences from 40 years of field studies in Scania, southern Sweden, of sewage sludge application on arable land. The field studies have been conducted with the same trial plan at two locations outside the cities of Malmö and Lund, respectively. The trial plan includes nine combinations of sludge application and […]
Algae and hydropower. Attached algal vegetation as indicator of disturbances of the lotic ecosystem
The aim of this article is to present an approach (modus operandi) for producing recommendations regarding potential hydropower development. A study of attached algae in 27 streams in mid Sweden according to extension of hydropower or not was carried out. The samples were taken already in 1982 and some of the streams and parts of […]