Abstract
The invention relates to a salt-containing glycerin wastewater treatment system and method. Specifically, the salt-containing glycerin wastewater treatment system includes a mixing tank, a filter device, a distillation tower and a water supply device. The mixing tank is used for mixing salt-containing glycerin wastewater with concentrated hydrochloric acid to obtain a mixed solution. The filter device is communicated with the mixing tank and filters the mixed solution so as to obtain acidic filtrate and precipitated salt. The distillation tower is communicated with the filter device and receives acidic filtrate from the filter device. The water supply device supplies water to the acidic filtrate. The salt-containing glycerin wastewater treatment system and method provided by the inventioncan effectively recycle hydrochloric acid.