1,How to
store it: It can be kept
in the air, the temperature should be 0-40°C; if the temperature
is below zero, add clear saturated salt water into packing
bag to immerse resin; the high temperature can dehydrate and
degrade the resin; one the resin has lost its moisture, it
should be immersed in saturated salt water first, and then
diluted it and wash the salt away. The resin should be in
wet condition during storage.
2, How to
handle it:
Washing the new resin with hot
water in several tiome before stuffed, cation exchange resin
uses 70-80°C of water, anion exchange resin is about
50-60°C; At beginning, change the water every 15 minutes,
no stirred it, after 4 to 5 times of water change; the change
time is 30min every time, the resin should be immersed in
7 to 8 times until the water is not brown any more and with
less foam; after washing, you can handle it with acid and
alkali. For cation exchange resin: 1, flow the resin with
N HCl, the dosage is 2 to 3 times of strong acid cation
resin, 3 to 5 times of weak acid resin, 1.5 times of bead
every hour; , washing it, the PH is about 5, flow the resin
with 3 times of resin volume of 5% NAcll solution, the flow
rate just like step 1; 3, flow the resin with 1N NaOH, the
flow rate just like step 1; 4, washing it untill the PH
of outlet water is 9; 5, washing it with 1N HCL or H2SO4,
change the resin into H type, the dosage is 2 to time of
resin volume, the flow rate just like step 1; 6, after acid
washing, washing it with deionized water until PH of outlet
water is 6; and then it can be used. for anion exchange
resin , after washing, it can be washed in alkali-acid-alkali,
the dosage and flow rate, Strong alkali resin is relative
to Strong acid resin
3, regeneration
treatment:
1. Once the resin is put into function,
its exchange capacity may get reduced after certain time,
the water quality in outlet became worse and worse; these
phenomena are caused by pollution of resin; during the extraction
of sewage and biochemicals, whose ingredients are very complex,
then the resin is eaay to be polluted, so the resin beed
to be regenerated in different methods according to different
condition. We can provide technical support for you
2. Macropore resin should be immersed
in acetone and methanol, the dosage is 3 to 5 times of resin,
the he flow rate just like step 2-(1) |