Hur påverkar klimatförändringar sjöar och hav? / The potential effects of global climate change on oceans and lakes
Global increases in atmospheric CO2 and temperature are associated with an increase in the temperature of freshwater lakes and marine ecosystems. The ice breakup in lakes occur earlier which gives an opportunity for phytoplankton to grow early in the season. Another effect is a prolonged period of stratification in the lakes. Warming also may cause […]
Microwave dielectric sensing of moisture in MSWIbottom ash – Comparison of frequency vs. time domain reflectometry / Fukthaltsmätning i bottenaska med dielektriska metoder – en jämförelse mellan mätningar i tids- och frekvensdomän
This paper presents the detection of moisture content in municipal solid waste incineration bottom ash (MSWI BA) with two different measurement techniques. The study used a frequency domain coaxial probe and a short TDR probe to evaluate and compare the performance of the both probes for lossy materials. Instead of using complex data conversion algorithms, […]
GIS-baserad sårbarhetskartering av VA -system med avseende på klimatförändringar / GIS-based methodology for vulnerability mapping of the water and wastewater system in view of climate change
Urban infrastructure, such as the water and wastewater system, is at particular risk following climate change. Identifying vulnerable parts of the system contributes to safe and sustainable water and wastewater handling in a long term perspective. The aim of this study was to further develop a GIS-based methodology for mapping physical vulnerability of urban water […]
Performance of prefabricated package plants for on-site wastewater treatment in the Vansjø- and Hobøl watershed (Morsa), Norway / Funksjonskontroll av minirenseanlegg i Vansjø- og Hobølvassdraget (Morsa), Norge
Prefabricated package wastewater treatment plants are increasingly used to treat on-site discharges in Norway. The performance of these plants, and their compliance with national and regional legislation, has been thoroughly evaluated. During 2006–2008 two separate studies investigated 91 on-site wastewater treatment plants, in the Vansjø- and Hobøl Watershed. The removal of organic matter was satisfactory […]
Befolkningstillväxt och vattentillgång i obalans / Unbalance between population increase and access to water
The United Nations 2010 revision of the world population estimates the population to increase from about 7 billion today to slightly more than 10 billion in 2100. In the most probable scenario the fertility will reach replacement level during the later decades of the period, after which the total population will not increase significantly. With […]
Groundwater quality in the surroundings of Mafraq landfill, Jordan / Grundvattenkvalité i närheten av Mafraq-deponin, Jordanien
The aim of this study was to gather information about the Mafraq landfills sanitary status as well as assessing its leachate quality and the groundwater quality in its surroundings. The Mafraq landfill is located upon one of Jordan’s most important groundwater aquifer making it a possible threat to the water quality. The aquifer is used […]
Retention of agricultural surface runoff in a cold-climate vegetative buffer zone – effect of vegetation and season / Vegetasjonssoner i jordbrukslandskapet som rensetiltak for overflateavrenning – Effekt av ulik vegetasjon og årstider
This paper presents an investigation of three vegetative buffer zones (BZ) (10 x 5 m) treating agricultural surface runoff. The experimental full scale BZs were located at Mørdre in south-east Norway. The average retention capacity in BZs (entire experimental period) with only grass and with trees and grass was respectively 33 and 46 % for […]
Mapping and situation analysis of drinking water resources in India – a participatory approach / Kartering och situationsanalys av dricksvattentillgång i Indien ur ett lokalt perspektiv
Geographical space is a vital factor over a broad range of decision making problems. Participatory Resource Mapping (PRM) can be a vital tool for collection and assimilation of data on broader spatial scale with ease and accuracy. In this paper we seek to determine the connections between PRM and its linkages with the grassroots knowledge […]
Flödesdesign vid avloppsreningsverk / Flow design at wastewater treatment plants
This article deals with flow design of wastewater treatment plants in Sweden. The traditional sewer system and the traditional approach of flow design of wastewater treatment plants are discussed. Based on the changes that the wastewater systems and the regulations surrounding them have undergone in Sweden over the past 40 years a new method for […]