Standard five kinds of Kaolins, bentonite, active carbon and so on produced in Korea have been chosen as absorbent for tests.
The comparative tests for afore-mentioned samples have been performed as the way of decolourization on method using Ti_2(SO_...
Standard five kinds of Kaolins, bentonite, active carbon and so on produced in Korea have been chosen as absorbent for tests.
The comparative tests for afore-mentioned samples have been performed as the way of decolourization on method using Ti_2(SO_4)_3 which was reported as improvement of morch method (Akazawa et al). The effects of acid treatment and alkali treatment to the samples are experimented, too, and we obtained the result which was different from accompaniment of sample's pH.