Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Removal of the Azo Dye Congo Red from Aqueous Solutions by the Marine Alga Porphyra yezoensis Ueda
10.1002/clen.200900177.abs
Batch adsorption experiments were carried out using nonliving biomass ofPorphyra yezoensis Ueda(red alga) for the removal of Congo red from aqueous solutions at 25°C. The effects of process parameters such as contact time, adsorbent concentration and ionic strength were investigated. The raw biomass and Congo red loaded biomass were characterized by Fourier transform infrared spectroscopy (FTIR). The pseudo first order, pseudo second order and intraparticle diffusion models were tested. The results showed that adsorption of Congo red followed pseudo second order kinetics very well. Langmuir and Freundlich equations were applied to the data related to the adsorption isotherms, and the observed maximum adsorption capacities (qm) were 71.46 mg/g at 25°C. Adsorbent concentration and ionic strength had a marked effect on Congo red adsorption.
Removal of the Azo Dye Congo Red from Aqueous Solutions by the Marine Alga Porphyra yezoensis Ueda
10.1002/clen.200900177.abs
Batch adsorption experiments were carried out using nonliving biomass ofPorphyra yezoensis Ueda(red alga) for the removal of Congo red from aqueous solutions at 25°C. The effects of process parameters such as contact time, adsorbent concentration and ionic strength were investigated. The raw biomass and Congo red loaded biomass were characterized by Fourier transform infrared spectroscopy (FTIR). The pseudo first order, pseudo second order and intraparticle diffusion models were tested. The results showed that adsorption of Congo red followed pseudo second order kinetics very well. Langmuir and Freundlich equations were applied to the data related to the adsorption isotherms, and the observed maximum adsorption capacities (qm) were 71.46 mg/g at 25°C. Adsorbent concentration and ionic strength had a marked effect on Congo red adsorption.
Removal of the Azo Dye Congo Red from Aqueous Solutions by the Marine Alga Porphyra yezoensis Ueda
Wang, Xue Song (Autor:in) / Chen, Jing Ping (Autor:in)
CLEAN – Soil, Air, Water ; 37 ; 793-798
01.10.2009
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Removal of the Azo Dye Congo Red from Aqueous Solutions by the Marine Alga Porphyra yezoensis Ueda
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