“…Other studies were performed approximately at 30ºC [39,48,49,51,[58][59][60][61][62][63], at 35ºC [37], and even at 40ºC [64,65] most likely ajusting to the natural conditions existing in warmer countries. Apart from the cases described by [8,9,39,66,67], efficiency of chromium sorption increases with temperature.…”