The invention relates to a modified
tremolite adsorbent and a PTA
industrial waste water treatment method. The preparation method of the adsorbent comprises the following steps: preparing a piranha liquid; immersing
tremolite powder into the piranha liquid at 75-85 DEG C for 8-12 minutes, wherein the dosage of the piranha liquid is determined by just immersing the
tremolite powder; then filtering, taking out a
filter cake, washing by deionized water until the
mass of the
filter cake is constant,
drying at
room temperature, thereby obtaining the modified tremolite
filter cake; placing the modified tremolite filter cake into a water /
alcohol mixed liquid with the volume ratio of 1:1, and carrying out
ultrasound with 80-120W at 30-50KHz for 1.5-2.5 hours; filtering a liquid, washing the filter cake by
distilled water until the
mass is constant, then
drying at 190-210 DEG C for 1.5-2.5 hours; and
grinding the dried filter cake, and screening out
powder of 80-100 meshes, thereby obtaining the modified tremolite adsorbent. According to the invention, the manufacturing cost is low; the modification method is simple and feasible; the adsorption rate of the modified adsorbent to
cobalt and
manganese ions in PTA
industrial waste water reaches 99.00% above; and moreover, the efficiency is high, and the
treatment effect is steady.