Fig. 2 Thiosulphate consumption (mol L^-1) vs Time (hrs) of strains isolated in this study and the T. thioparus ATCC 10801 strain at 24ºC. 10801, ATCC 10801 strain; API, water separator strain; MUD, sludge strain; NC, Negative Control (non inoculated). [S₂O₃^-2]: Thiosulphate concentration.