http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Adsorption of Crystal Violet from Wastewater by Modified Bambusa Tulda
Nirban Laskar,Upendra Kumar 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.8
In the present study sodium carbonate modified Bambusa tulda was utilised for the removal of crystal violet dye from aqueoussolution. The functional group characterization and the surface morphology was done by Fourier Transform Infrared Spectroscopy(FTIR) and Scanning Electron Microscope (SEM). It confirms the hydroxyl groups and carboxyl group present on the surface ofmodified Bambusa tulda. The optimum condition for the removal of crystal violet was taken place at pH 7, 200 rpm, dose at 10gm/l,initial concentration 50 mg/l, at equilibrium time 60 minutes and 298 K temperature with maximum adsorption capacity of 20.84 mg/gm. The adsorption of crystal violet by modified Bambusa tulda best fits in Langmuir isotherm model with R2 value 0.924 andPseudo 2nd order rate equation model with R2 value of 0.999. Other parameters like isosteric heat analysis, thermodynamics profileand activation energy were investigated. Thus, modified Bambusa tulda can be an efficient and economically used as an alternativefor activated carbon for the removal of crystal violet from waste water.