Treatment of landfill leachate by constructed wetlands

The performance of three constructed wetlands systems treating landfill leachate is described. Two are located in northern Poland (Szadolki near Gdansk and Gatka near Miastko) and one in southern Sweden (Örebro). The constructed wetlands in Szadolki consists of two parallel silty soil beds planted with reed with sub-surface horizontal flow of sewage. The constructed wetland in Gatka is a willow plantation on sandy soil, receiving leachate after preliminary sedimentation in a retention pond. The system in Örebro consists of a series of ponds with a surface flow of leachate, preceded by pre-treatment in an aerated tank with nitrogen stripping. The best treatment efficiencies were observed at Örebro. At the sub-surface flow wetlands in Szadolki and Gatka clogging problems occurred due to the unsatisfactory pre-treatment and low soil hydraulic conductivity resulting in lower treatment efficiencies

Localized practices and globalized futures: challenges for Alaska coastal community youth

An article from Maritime Studies (2015) 14:

Rurality and education relations: Metro-centricity and local values inrural communities and rural schools

Based on ethnographic fieldwork in six different types of rural area and their schools in different parts of Sweden, this article identifies how rural schools relate to the local place and discusses some of the educational implications from this. Recurrent references to the local community were present in some schools and people there explicitly positioned themselves in the local rural context and valorised rurality positively in education exchanges, content and interactions, with positive effects on young people’s experiences of participation and inclusion. These factors tended to occur in sparsely populated areas. An emphasis on nature and its value as materially vital in people’s lives was present as was a critique of middle-class metrocentricity. Such values and critique seemed to be absent in other areas, where rurality was instead often represented along the metrocentric lines of a residual space in modernizing societies