PESSOA, J. D.; http://lattes.cnpq.br/2578226630006254; PESSOA, Julyanna Damasceno.
Resumo:
Due to the degradation of water resources and the increasing concern about specific
microorganisms in water, the use of ceramic membranes for separation of
contaminating materials, becomes a treatment option for the production of drinking
water, due to reasons such as its resistance to chemicals, requires a smaller area of
equipment construction, greater energy savings, among others. This study
investigated the performance of a hybrid system consisting of a tubular microfiltration
ceramic membrane, filled with ion exchange resins for substandard water treatment.
The membranes used in this work are the α-alumina type (α-Al2O3), with pores
which have a nominal diameter of about 0.8 microns produced by Laboratório de
Membranas Cerâmicas (LABCEM), at Desalination in Reference Laboratory
(LABDES) at the Federal University of Campina Grande (UFCG). The system was
evaluated by the flow and permeate flow, the operating pressure 0.5; 1.0; 2.0 and 3.0
bar; presence / absence and bacteriological count tests in the feed and permeate
water for the system: ceramic membrane; Physical and chemical analysis for the
system: ceramic membrane / RTI; and hydraulic residence time (τ), at the operating
pressures of 1.0; 2.0 and 3.0 bar. The ceramic membrane completely removed the
Total and fecal (Escherichia coli) Coliform of the water. The permeate flux behavior
varied with the operating pressure. In the hybrid system: ceramic membrane / RTI
residence time was 15.55 seconds at the operating pressure of 1.0 bar by removing
71.9% of the feed water ions, to 66% at 2.0 bar pressure ( = 11.73 seconds), and
61% for the 3.0 bar ( = 10.11 seconds). The hybrid system was efficient in the
removal of physical and chemical parameters and produced good quality treated
water as for the bacteriological parameters in lower quality water with low power
consumption.
