Sustainability evaluation of the use of cargo-trams for mixed municipal waste transport in Prague.

The use of trams for the transport of waste from urban areas to waste incineration facilities - does it make sense, would it be technically feasible, economically sustainable and environmentally beneficial? These are the questions which we attempted to answer in this comprehensive study. The analysis is performed for a specific potential implementation of this system in Prague and adjacent municipalities. In this work, we compare the current state, where mixed municipal waste is transported to an incineration plant directly by garbage trucks, with variants if mixed municipal waste were taken to transfer stations and from there transported over a longer distance in a large volume by means of tram or truck.

Life cycle assessment comparison of photocatalytic coating and air purifier.

This article presents a comparison of 2 very different options for removal of undesirable microorganisms and airborne pollutants from the indoor environment of hospitals, schools, homes, and other enclosed spaces using air purifiers and photocatalytic coatings based on nano titanium dioxide (TiO2 ). Both products were assessed by life cycle assessment (LCA) methodology from cradle-to-grave. The assessment also includes comparison of 2 different nano TiO2 production technologies, one by continuous hydrothermal synthesis and the other by a sulfate process.