Constructed wetland systems have attracted attention as suitable methods to treat landfill leachate. Experiences are promising in several European countries and in the North America, but Swedish experiences are limited so far. There is an interest for this solution also in Sweden and a number of constructed systems have recently been established. The aim with […]
The purpose of the project “Bra Små Avlopp” or “Small Well functioning Sewage plants” was to evaluate and demonstrate new solutions for decreasing the discharges from on site wastewater treatment plants. Seven of the investigated facilities were package plants, two were urine separating plants with large sand filters, two had septic tanks to collect wastewater […]
The purpose of ground water aeration is mainly to remove unwanted gases and impurities as well as improve the oxidation of iron and manganese. A commercial ejector aerator was characterized in laboratory and field and the performance was compared in field studies with other aeration methods used in full scale in water-works. This evaluation was […]
Författare JAANKIVILOOG, ROBIN FJÄLL och KENNETH M PERSSON
Nyckelord (Keyword) ejector aerator, oxygen transfer efficiency, oxidation
One of the main issues ot the research programme “Sustainable Urban Water Management” (UW), which is funded by the Swedish Foundation for Strategic Environmental Research (MISTRA), is if existing urban water management is sustainable and what measures may be undertaken if it is not. This paper focuses on the ecological dimension of sustainability and its […]
Författare DANIEL HELLSTRÖM, MATTIAS HJERPE, HÅKAN JÖNSSON, PER-ARNE MALMQVIST, HELENA PALMQUIST
Nyckelord (Keyword) Water and wastewater management, Guiding principles, Environmental quality objectives, carrying capacity.
So far, the processes behind the eutrophication of coastal waters are poorly understood. As a consequence of this, efforts to counteract this phenomenon have failed. In this study, ecological valuations are used, in comparison with nutrient utilization, in different types of lakes and watercourses in parts of the drainage basin of the River Göta älv, […]
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