VATTENPROBLEM I LUND OCH VÄRLDEN Teknisk vattenresurslära, LTH, åren 1966-1988 / Water Problems in Lund and in the World Department of Water Resources Engineering 1966-1988
The activities at the Department of Water Resources Engineering (previously the Department of Hydraulics) from 1966-1988 was characterized by a socially a ware attitude to water issues. There were obvious reasons for such an approach. The department launched its activties in the midst of global concerns for the lack of adequate water resources to meet […]
VATTENFÖRVALTNING I AVRINNINGSOMRÅDEN MÖJLIGHETER OCH LÖSNINGAR I OLIKA LÄNDER / Water Management in River Basins Possibilities and Solutions in Different Countries
Historically people and institutional actors have always joined together to manage water problems in a situation of water scarcity. Examples of river basin administrations in China, Germany, England and Wales and France are given in this paper. It is noted that the French water management system has become the model for the EU Commission Proposal […]
BEGREPPSMÄSSIGA AVRINNINGSMODELLER TILLFÖRLITLIGA VERKTYG I VATTENPLANERINGEN? / Conceptual runoff models – reliable tools in water management?
Available observations are often not suffcient as a basis for decision making in water management. Conceptual runoff models are frequently used as tools for a wide range of tasks to compensare the lack of measurements, e.g. to extend runoff series, compare design floods and predict the leakage of nutrients or the effects of a climatic […]
BIOLOGISK AVLOPPSRENING En utredning om kvävereducering i avloppsvatten / Biological Wastewater Treatment An investigation of nitrogen reduction methods
The eutrophication of the Balric Sea has resulted in a decision in the Swedish Parliament that every wastewater treatment plant on the Baltic coast with more than 2000 customers has to have a nitrogen reduction system. This investigation compares the three methods for nitrogen reduction, that are in full use in Sweden: constructed wetlands, fluidized […]
URBAN SNOWMELT PROCESSES: AN OVERVIEW FOR MODELLERS
The governing processes involved in both urban and rural hydrology are the same, but the climatic and surface conditions in the urban environment are different, hence, snowmelt and runofFgeneration also differ. However, snowmelt is a neglected part of urban hydrology. Indeed, urban runoffmodels and drainage systems have been developed for rainfall events. This paper discusses […]
EVOLUTION OF WASTEWATER TREATMENT IN FINLAND
This paper is based on several studies on the long-term development of water and sanitation services in Finland and presents the evolution of domestic wastewater treatment in Finland in the 20th century. It shows that the first phase of wastewater treatment development took almost 60 years; thereafter the systems expanded rapidly over two decades to […]
SMÅ AVLOPP FÖR KRETSLOPP – SORPTION TILL REAKTIVA FILTER / Small-scale wastewater cycling – sorption to reactive filter media
Reactive filter material, sorbents, can be used to remove phosphorus (P) from wastewater through sorption processes. The technique implies that the wastewater pass a fdter that is incorporated in a soil bed or a constructed wetland. When P-saturation is achieved, the sorbent can be recycled to agriculture, since the sorbed phosphorus is available for plant […]
BIOLOGISK FÖRBEHANDLING MED LÅNGSAMFILTRERING / Biological pretreatment with slow sand filtration
The focus on environmental aspects in the society has increased the strive to find sustainable sysrems for drinking water production. This has lead to a greater inrerest in biological filtration, for example slow sand filtration (SSF). Biological pretreatment of raw water might reduce the need for chemicals in the following treatmem steps, with reduced sludge […]
VATTENPROJEKTET I NATURVÅRDSVERKET / Water management project at the SEPA
The article gives a presentation of the Swedish environmental protecaon agency‘s project on Water management, a project concerning warer management and the implementation process of the EG Water framework directive on water policy. The overall aim of the project is to enhance the process ofimplementation, doing so by trying to find our difficulties concerning our […]
VATTENPLANERING – PÅ RIKTIGT? / Water management – in reality?
In a not too distant furure we will be working wiih Water management in Sweden, covering all river basin districts, with access to steering instrumenrs enabling us to achieve the decided objeaives. For decades people with specific interest in water management in Sweden have been trying to use water management in physical planning and environmental […]