We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Operating conditions and membrane selection for the removal of conventional and emerging pollutants from spring water using nanofiltration technology: the Tula Valley case.
- Authors
Ruíz, Fabián Neira; Arévalo, Arnold Arcos; Álvarez, Juan Carlos Durán; Cisneros, Blanca Jiménez
- Abstract
The aquifer of the Tula Valley in Mexico is recharged by the infiltration of wastewater used for agricultural irrigation. This aquifer is considered to be a possible source of water for Mexico City, and although, in general, the water is good quality it still contains hardness and specific emerging pollutants. This research aims to identify a suitable treatment process based on membrane nanofiltration as it is a proven technology. Four nanofiltration membranes were compared using the critical flux concept in order to select the two that produced the largest amount of permeate. Membrane fouling was assessed by investigating the deposition of calcium using SEM images. To control hardness scaling, pretreatment with 150% of lime was employed. Finally, one membrane was selected based on its capability to remove carbamazepine, bisphenol A, triclosan, butilbenzylphthalate, and 4-nonylphenol. The selected membrane was operated at 800 kPa, producing 87.30 l m-2 h-1.
- Subjects
FOULING; DRINKING water; NANOFILTRATION; MEMBRANE separation; WATER reuse; POLLUTANTS
- Publication
Desalination & Water Treatment, 2012, Vol 42, Issue 1-3, p117
- ISSN
1944-3994
- Publication type
Article
- DOI
10/5004/dwt.2012.2467