scholarly journals Development of a novel off-grid drinking water production system integrating electrochemically activated solutions and ultrafiltration membranes

2019 ◽  
Vol 30 ◽  
pp. 100480 ◽  
Author(s):  
Gillian E. Clayton ◽  
Robin M.S. Thorn ◽  
Darren M. Reynolds
2015 ◽  
Vol 57 (42) ◽  
pp. 19619-19631
Author(s):  
Fátima Rojas-Serrano ◽  
Eugenio Marín ◽  
Jorge Ignacio Pérez ◽  
Miguel Ángel Gómez

2020 ◽  
Vol 737 ◽  
pp. 139630
Author(s):  
Fida Hussain Lakho ◽  
Hong Quan Le ◽  
Fréderic Van Kerkhove ◽  
Wouter Igodt ◽  
Veerle Depuydt ◽  
...  

2015 ◽  
Vol 6 (1) ◽  
pp. 77-94 ◽  
Author(s):  
Fatima Rojas-Serrano ◽  
Rocio Alvarez-Arroyo ◽  
Jorge I. Perez ◽  
Fidel Plaza ◽  
Gloria Garralon ◽  
...  

2004 ◽  
Vol 4 (5-6) ◽  
pp. 215-222 ◽  
Author(s):  
A.R. Costa ◽  
M.N. de Pinho

Membrane fouling by natural organic matter (NOM), namely by humic substances (HS), is a major problem in water treatment for drinking water production using membrane processes. Membrane fouling is dependent on membrane morphology like pore size and on water characteristics namely NOM nature. This work addresses the evaluation of the efficiency of ultrafiltration (UF) and Coagulation/Flocculation/UF performance in terms of permeation fluxes and HS removal, of the water from Tagus River (Valada). The operation of coagulation with chitosan was evaluated as a pretreatment for minimization of membrane fouling. UF experiments were carried out in flat cells of 13.2×10−4 m2 of membrane surface area and at transmembrane pressures from 1 to 4 bar. Five cellulose acetate membranes were laboratory made to cover a wide range of molecular weight cut-off (MWCO): 2,300, 11,000, 28,000, 60,000 and 75,000 Da. Severe fouling is observed for the membranes with the highest cut-off. In the permeation experiments of raw water, coagulation prior to membrane filtration led to a significant improvement of the permeation performance of the membranes with the highest MWCO due to the particles and colloidal matter removal.


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