To provide a decoloring method, device and agent which can easily decolor colored wastewater containing hardly decomposable coloring-causing substances at a low cost.
The decoloring method for dye-containing waste-water comprises the process for introducing the dye-containing wastewater into a treatment tank, and the process for adding calcium chloride and a microorganism belonging to Enterococcus genus to the introduced wastewater. The decoloring device is equipped with a means for introducing the dye-containing wastewater into the treatment tank, a means for adding calcium chloride and the microorganism belonging to Enterococcus genus to the introduced wastewater, a means for adjusting pH of the wastewater in the treatment tank, a means for controlling the wastewater in the treatment tank from a microaerophilic condition to an aerobic condition, and a means for leading out the wastewater in the treatment tank. The decoloring agent for dye-containing wastewater contains calcium chloride and the microorganism belonging to Enterococcus genus.
TSUJIMOTO KAZUHISA
SAKURAI MASAHIRO
SHIMIZU NORIHIDE
| JP2003334588A | 2003-11-25 | |||
| JPS63126596A | 1988-05-30 |