XIAOGu-qing,MENGQiu-dong,WENRui-ming,et al.Performances of Different Pore Sizes Resins for COD Removal from Biochemical Tail Water of Petrochemical Wastewater[J].China Water & Wastewater,2022,38(7):97-102.
Performances of Different Pore Sizes Resins for COD Removal from Biochemical Tail Water of Petrochemical Wastewater
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第7期
Page:
97-102
Column:
Date of publication:
2022-04-01
- Abstract:
- The effects of pH, initial COD concentration, adsorption time, temperature and resin combination on two kinds of resins (D301 macroporous resin and H103 hypercross linked resin) with different pore sizes for COD removal from biochemical tail water of petrochemical wastewater (BTPW) were investigated by static adsorption method. When the pH of BTPW was 8.38, the COD removal efficiencies of D301 and H103 were the highest. The COD removal efficiency of D301 was obviously higher than that of H103, and the intraparticle diffusion rate constant kd of D301 was 4.19 times that of H103. D301 tended to adsorb macro molecular weight pollutants from BTPW, while H103 tended to adsorb small molecular weight pollutants. The pore size advantages of the two resins were comprehensively utilized. Compared with a single resin, the removal efficiency of COD by mixture of the two resins with different pore sizes was higher. When the initial COD was 65.7-328.7 mg/L, the COD removal efficiency of D301/H103 resin mixture was in the range of 64.31%-85.03%.
Last Update:
2022-04-01