Producción Científica Profesorado

Adsorption capacity of biological powdered activated carbon in a hybrid membrane process for drinking water treatment

Vázquez Rodríguez, Gabriela Alejandra


Vázquez-Rodríguez G.A., Mailly J., Stoquart C. and Barbeau B. (2012) Adsorption capacity of biological powdered activated carbon in a hybrid membrane process for drinking water treatment. Memorias del XXXIII Encuentro Nacional y II Congreso Internacional de la Asociación Mexicana de Investigación y Docencia en Ingeniería Química (AMIDIQ), San José del Cabo, B.C.S., 1-4 mayo, pp. 1211-1216.


Hybrid membrane process integrates low-pressure driven membrane filtration to activatedcarbon (AC) adsorption. One of their main features is the possibility of operating either in adsorptionor in biological mode, which can be accomplished by shifting the AC residence time (i.e., sludge age)within the reactor. The purpose of this work was to evaluate the adsorption capacity of PACmaintained in a hybrid process operated in biological mode (at 10 and 60 days of sludge age) and tocompare it with that of the same virgin (i.e. uncolonized) material. For that purpose, kinetic tests werecarried out using methylene blue as the adsorbate (10-5 M). A pseudo second order model was fitted tothe kinetic data with good compliance. The results showed an inverse relationship between qe and theinitial PAC dose. Although both biological PAC lead to lower adsorption rates than the uncolonizedmaterial, our results indicate that the adsorption mechanism plays a role in hybrid processes eventhough they are operated at high sludge ages.

Producto de Investigación UAEH

Artículos relacionados

Standardization of activated sludge for biodegradation tests

Degradación física del almidón de cebada (Hordeum sativun Jess). Correlación entre la gelatinización...

Effect of the inoculation level in aerobic biodegradability tests of polymeric materials

Two-step modeling of the biodegradation of phenol by an acclimated activated sludge

Inocula from activated sludge for ready biodegradability testing: Homogenization by preconditioning

A method for measuring the anoxic biodegradability under denitrifying conditions

Toward a standardization of the microbial inoculum for ready biodegradability testing of chemicals

Procedures in Ready Biodegradability Testing: Effects of the Inoculation and the Monitored Parameter


Mathematical modeling of diffusion regulated Quorum sensing in Artificially Structured Microbial Con...