Scale-up of photoreactor with TiO thin layer for wastewater treatment.

This study is devoted to the scale-up potential of TiO/UV photocatalyst for real wastewater treatment including its durability tests. The activity of the prepared TiO layers was first tested in a laboratory reactor on key representative pollutants diclofenac, chloramphenicol and triclosan. A special pilot plant reactor of a two-tube system with 21 stainless steel annulets covered by TiO thin layers and the inner volume of 3.

Microalgae for bioenergy: key technology nodes.

Microalgae have increasingly gained research interest as a source of lipids for biodiesel production. The wet way processing of harvested microalgae was suggested and evaluated with respect to the possible environmental impacts and production costs. This study is focused on the three key steps of the suggested process: flocculation, water recycling, and extraction of lipids.

Solidification of waste steel foundry dust with Portland cement.

Properties of mixtures of Portland cements and "waste steel foundry dust (WSFD)" from Czech steel works were examined. It was found that WSFDs are formed by microporous clusters of spherical particles of iron oxides, ranging in size from 10 to 100 nm. The content of ZnO in WSFD affects markedly the hydration of cement + WSFD mixtures both in solidification time and strength development.