Georgios Bartzas

TL;DR: In this article, the compressive strength of concrete, bricks and tiles collected from various demolished buildings were mixed with the activating solution (NaOH and Na 2 SiO 3 ), and various synthesis conditions (curing at 60-90°C, 8-14 m NaOH molarity, particle size) were considered.

TL;DR: In this article, the potential of in-situ permeable reactive barriers (PRBs) to remove heavy metal ions from synthetic solutions simulating acidic leachates under dynamic flow conditions was evaluated.

TL;DR: In this article, the effect of monovalent and divalent anions, such as sulphate and nitrate, on heavy metal immobilisation in ferronickel slag geopolymers was investigated.

TL;DR: In this article, pistachio shells obtained from Aegina island, Greece, were subjected to slow pyrolysis for the production of biochar, which was carried out over a temperature range of 250-650°C for 1h using a heating rate of 10°Cmin−1 and the quality of the produced biochar was assessed by evaluating its main properties.

TL;DR: Solid phase studies of the exhausted reactive products after column shutdown and geochemical modelling calculations indicate that the effect of sulfate and silica sand on the efficiency of the reactive zone should be considered carefully during design and operation of low-cost field PRBs.