Protein of spherical macroporous cellulosic anion exchanger(PSC-AN) was synthesized by macroporous cellulosic beads. The results showed the exchanger(PSC-AN) had a spherical appearance, narrow distribution of diameter. BSA was used as target proteins to examine the adsorption properties of the adsorbent. Under appropriate conditions, the adsorbent had a capacity of BSA was 204.4 mg/g. Adsorption isotherm could expressed by Freundlish adsorption equation. The PSC-AN was used to absorb food industry wastewate...