유색폐수처리를 위한 고분자 흡착제의 개발과 처리수의 사용(II) - 4급 아민화 셀룰로오스 흡착제 -

Development of Polymeric Adsorbents for the Treatment of Colored Waste Waters and Re-use of the Treated Water (II) - Quaternary Aminized Cellulosic Adsorbent -

Quaternary aminized cellulosic adsorbents (C $A_{QA}$ ) which exhibit adsorption capacities for anionic dyestuffs for the treatment of colored waste water and re-use of the treated water were studied. The isotherms and thermodynamic parameters of C.I. Acid Orange 7, solution considered as a model of negatively charged coloring matters for C $A_{QA}$ , were determined. Batch method and flow method were employed to determine decoloring capacity of cellulosic adsorbents for Orange 7. The cellulosic adsorbents exhibited much better adsorption capacity than activated carbon. Furthermore the exhausted cellulosic adsorbents could be readily regenerated by washing with dilute sodium hydroxide.