Abstract

Fish scale, a by-product of fish processing, contains abundant of hydroxyapatite. Boiling fish scale in alkaline solution can fabricate adsorbent for sewage treatment. Degumming experiment had been investigated by exploring different heating time. Adsorption experiment had compared the adsorption effect of carmine by different fish scale sample. The results indicated that degummed fish scale had the best adsorption effect for containing both surface adsorption by hydroxyapatite and electrostatic adherence by collagen.

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