A feasibility study on sustainable wastewater treatment using Constructed wetlands – an example from Cochabamba, Bolivia
The city Cochabamba in Bolivia faces increasing environmental problems and health risks due to insufficient wastewater treatment in peri-urban areas. This study evaluates the treatment efficiency of a horizontal subsurface flow (HSF) constructed wetland, built by the foundation AGUATUYA, and investigates the applicability of the method in Cochabamba. The wetland reduces BOD5 by 80–97 %, […]
FASTLÄGGNING AV TUNGMETALLER I TVÅ ÖVERSILNINGSYTOR FÖR TRAFIKDAGVATTEN I MALMÖ / Accumulation of heavy metals in two Vegetative Filter Strips treating road runoff in the city of Malmö, Sweden
This paper evaluates the accumulation of the heavy metals cadmium, chromium, copper, nickel, lead, zinc and the effect of deicing salt in two Vegetative Filter Strips in an eight years old facility in southern Malmö. The two Vegetative Filter Strips were the road shoulder and the last step in the treatment facility after a swale, […]
Persistence and competition of denitrifying bacteria in a dual-strain biofilm subjected to a natural wastewater flora
Bioaugmentation for enhanced wastewater treatment performance depends on survival, maintained activity and retention of the inoculated microorganisms in the reactor. Biofilms could be suitable mediators of bioaugmentation due to the retention of the immobilized cells and the protection offered by the biofilm matrix. The overall objective of this study was to investigate the potential of […]
Ytan eller Botten? – en studie av avloppsvattnets inblandning & förhållanden i Inre Valdemarsviken / Surface or deepwater outlet – a study of effluent water entrainment & conditions inside Inre Valdemarsviken
The deepwater of the water area known as Inre Valdemarsviken, situated on the Swedish east coast, is a recipient of effluent water. Suspicions has arisen concerning bad conditions in the mouth area due to abnormal presence of bacteria in the surface water, overgrown perennial algae and turbid water. This may be effects of effluent water […]
Monitoring av läckage av kväve och fosfor från åkermark i Leningrads län till Finska viken / Monitoring of Nitrogen and Phosphorus losses from arable land in Leningrad County
The Gulf of Finland is one of the most eutrophicated parts of the Baltic sea. Besides the city of St Petersburg the share of nitrogen and phosphorus from agriculture have been in focus. A new Swedish-Russian long-term cooperation have started in the county of Leningrad. The purpose is among others to establish monitoring stations. These […]
Worldwide Oil Prize, Desalination and Population Growth Correlation Study
In this paper, the investment in new desalination capacity, expressed as daily production capacity, was studiedas a function of oil production and population increase for a large group of countries for the last 25 years. These countries were selected for their large desalination production and Sweden presented as reference. Oil production correlated well with investments […]
Finnish Well Water Quality in Rural Areas Surrounded by Agricultural Activity
In this study 136 wells (88 shallow and 48 deep) from rural areas in Western and Eastern Finland were analyzed during the years 2005 and 2006. The objectives of this study were to assess the general quality of the wells based on conventional indicators and novel organic matter analyses with the aid of High Performance […]