(658a) Ultrafiltration/Nanofiltration Based Technique for the Removal of Endocrine Disruptors From Surface Water
AIChE Annual Meeting
2011
2011 Annual Meeting
Water Technology for Developed and Developing Countries (see also Separations Division)
Micropollutants, Disinfection, and Other Considerations in Water Treatment
Thursday, October 20, 2011 - 8:30am to 8:55am
Endocrine disruptors compounds (EDCs) are natural or synthetic chemical substances that interfere in the endocrine system of humans and other animals, affecting their health, growth and reproduction. The EDCs can be integrated in surface waters through diverse mechanisms, like direct discharge of industrial and domestic wastes, the discharge of effluents from biological treatment plants and drains of agriculture into rivers and soils.
Their concentration in water at the order of magnitude of ng/L poses difficultities at the analytical level and at the large scale removal.
This work addresses the assessment of the influence of the surface water natural organic matter (NOM) on the concentration of EDCs , namely 4-Nonylphenol (NP) , for further removal by Ultrafiltration (UF).
The UF permeation experiments were conducted with a commercial membrane from Alfa Laval – ETNA10PP. The permeation experiments were carried out in a DSS Lab-unit M20 with a membrane surface area of 0,036 m2.
Ultrafiltration experiments for NOM concentration were carried out in concentration mode at different recovery rates.
The quantification of EDCs in the UF streams – feed, concentrate and permeate – was performed through Solid-Phase Extraction (EPS)/High Performance Liquid Chromatography (HPLC).