SOUZA NETO, O. B.; http://lattes.cnpq.br/5947449161571665; SOUZA NETO, Osmar Batista de.
Abstract:
Water is a very important natural resource for the life of all species inhabiting the earth.
However, it is being affected due to climate change, low quality, and quantity. The present work
aims to evaluate the performance of a hybrid system of ultrafiltration/reverse osmosis
membranes, for the treatment of brackish waters, in which the concentrate generated in each
experiment serves as the feed for subsequent experiments. The experiments for different
concentrations of salts in the hybrid system were conducted at the Desalination Technology
Testing Center (CTTD) of the Ministry of Science, Technology, and Innovation (MCTI) housed
within LABDES/UFCG, with mass transfer processes, in the design of water treatments with
technology involving polymeric membranes, combined with the learning of water
characterization processes, through physical-chemical and bacteriological analyses, and
operating pressure. The operating pressure used in the experiments was 7.12 kgf/cm², simulated
by Winflows 4.03, under the conditions of water quality feeding experiment 01. It was observed
that the cost of water produced by the hybrid membrane system depended on the level of
concentration of dissolved salts in the feed water. Experiment 01, which has a TDS feed of
1,775.62 mg/L, was the experiment with the highest system efficiency and the lowest
production cost, with a treated water recovery rate of 24.86% and a production cost of 2.77
R$/m³.
