Phosphorus is an important substance for agricultural production of food. Being a limited
resource, it is of great interest for regional, as well as global food security. At the same time it …

Societies have always been occupied with securing food supply and ensure environmental
and human health. Scientific knowledge and technical level have, together with habitat and …

1 Background Introducing and operating ecological sanitation (ecosan) installations in
urban areas requires a thoughtful combination of technical and managerial aspects fitting …

It is important for students to have knowledge about the basic characteristics of technological
systems, because they differ in crucial respects compared to single technological artefacts …

In this study, I analyse the historical process that led to embedding water-flushing toilets in
the Western world, then I explore innovative developments connected to alternative toilet …

Sustainable sanitation and food security have been issues in all human history although
named differently. This study describes the evolution of sanitation arrangements in the …

Changes in food consumption and related processes have a significant impact on the flow of
nitrogen in the environment. This study identifies both flows within the system and emissions …

A recurring challenge for human societies has been the provision of freshwater and the
disposal of wastewater. Initial systems were very rudimentary but became more and more …

Teknik kan beskrivas och analyseras med hjälp av olika teorier och begrepp. Under 1980-
talet kom tekniksociologer och teknikhistoriker att vidareutveckla den sk systemteorin för att …

The aim of this article is to study how the Swedish cities Linköping and Norrköping treated
new working-class suburbs during the period from 1860 to 1890, by looking at the extension …