Abstracts Book - IMRC 2018

• SF5-P034
ADSORPTION OF TEXTILE DYES USING AN ACTIVATED CARBON
AND CROSSLINKED POLYVINYL PHOSPHONIC ACID COMPOSITE
Alejandra Alicia Pelaez Cid 1 , Martín Caldera Villalobos 2 , Ana María Herrera González 2
1 Benemerita Universidad Autonoma de Puebla, Facultad de Ingeniería, Mexico. 2 Universidad
Autónoma del Estado de Hidalgo, Instituto de Ciencias Básicas e Ingeniería, Mexico.
Activated carbon is one of the most studied materials for the adsorption of
textile dyes. The adsorptive properties of this material are a result of its high
specific surface area and the functional groups acquired during the chemical
activation. This work reports the preparation of a composite material
(CarZN400C) using an activated carbon (CarZN400) and the polyelectrolyte
poly(VPA-co-TEGDMA). The adsorptive properties of the material obtained are
the result of the combination of the high surface area of the carbon and the
ionic exchange capability of the polyelectrolyte. The covering of the surface of
activated carbon with poly(VPA-co-TEGDMA) allowed us to obtain a composite
material with greater adsorption capacity for cationic dyes compared to
CarZN400. The adsorption isotherms of the dyes fit Langmuir’s model, and the
adsorptive capacities for cationic dyes for CarZN400C ranged between 222 and
416 mg/g. The kinetic study showed that the adsorption of basic and acid dyes
fit the pseudo-second order kinetic model. CarZN400C also exhibited the ability
to adsorb textile dyes present in wastewater. It was observed that, when making
a previous treatment of the wastewater using coagulation-flocculation followed
by adsorption using CarZN400C, it was possible to obtain removal percentages
close to 100%. The wastewaters treated by coagulation-flocculation and
adsorption improved their quality by decreasing the values for COD and color.
Acknowledgment:
VIEP BUAP for the project PECA-ING18-G
Keywords: COMPOSITE MATERIAL, ADSORPTION, TEXTILE DYES REMOVAL
Presenting authors email: alalpeci@hotmail.com