액상 유기오염물질에 대한 폐커피가루의 흡착능력 평가
Evaluation of the adsorptive capacity of spent coffee powder for the removal of aqueous organic pollutants
- Resource Type
- Article
Text
- Authors
- 김슬기; 나승민; 손영규; Seulgi Kim; Seungmin Na; Younggyu Son
- Source
- 한국습지학회지, 02/29/2016, Vol. 18, Issue 1, p. 39-44
- Subject
- 폐커피가루
입상활성탄
분말활성탄
흡착평형
흡착속도
Spent coffee powder
Granular activated carbon
Powdered activated carbon
Adsorption equilibrium
Adsorption kinetics
- Language
- 한국어(KOR)
- ISSN
- 1229-6031
The reuse of spent coffee powder has been researched for environmental engineering applications such as adsorbents of organic/inorganic pollutants. In this study adsorption equilibrium tests and adsorption kinetics tests for the removal of aqueous organic pollutant (methylene blue) were conducted using spent coffee powder, granular activated carbon, and powdered activated carbon. It was found that the maximum adsorption capacity of three adsorbents followed the order of powdered activated carbon (178.6 mg/g) > spent coffee powder (60.6 mg/g) > granular activated carbon (15.6 mg/g). The results of adsorption kinetics tests also indicated that spent coffee powder had higher kinetic parameters than granular activated carbon for pseudo 1st and 2nd order kinetics. The high performance of spent coffee powder might be due to its porous surface like those of granular and powdered activated carbons and smaller particle size comparing with granular activated carbon.