The invention relates to the technical field of industrial
wastewater, in particular to a method for producing an amino water
reducing agent by using
triclosan etherification
wastewater extract, which comprises the following steps: (1) taking collected
triclosan etherification
wastewater, adjusting the pH value to be acidic, layering, and collecting upper-layer extract and lower-layer wastewater; (2) taking lower-layer wastewater, adding an extracting agent, stirring, and concentrating and crystallizing the collected lower-layer
potassium chloride solution to obtain a
potassium chloride product; an upper-layer extract and condensate water are reserved for use; and (3) taking condensate water, adding
phenol,
sodium sulfanilate, the upper-layer extract and the upper-layer extract, stirring, adjusting the pH value to be alkaline, heating, dropwise adding
formaldehyde, continuously heating for reaction, cooling, adjusting the pH value, and adding water to adjust the
solid content, thereby obtaining the amino
water reducer. According to the method, zero
discharge of the
triclosan etherification waste liquid is realized, the current
pollution situation of the
phenol-containing waste water is effectively improved, the environment is protected, the triclosan etherification waste water is comprehensively utilized, and the method has good
economic benefits and
environmental protection benefits.