Authors:
Șerban Ecaterina Anca, Diaconu Ioana, Ruse Elena, Nechifor Gheorghe
Șerban Ecaterina Anca, Diaconu Ioana, Ruse Elena, Nechifor Gheorghe
Conference: International Symposium “The Environment and the Industry”
Date: 26-27 September 2019
Location: Bucharest, Romania
Published: 2019
Keywords:
Bulk liquid membranes
Nitrophenols
Organic acids
Phenols
Abstract:
Organic acids, phenols and their derivatives represent a category of chemical compounds frequently encountered in wastewater because of their use in various industrial fields. Some of these compounds have a high toxic potential and their removal from wastewater is a necessity. Membrane processes are often indicated for this purpose due to the many advantages they present: high efficiency and selectivity, low cost price etc. Experimental studies performed on a group of organic compounds: organic acids (indole-3-acetic acid, nicotinic acid) and nitrophenols (o-, m-, p-nitrophenol) have demonstrated the applicability of a membrane technique to remove these compounds in yields over 90%. The optimal of operational parameters of a bulk liquid membrane system were determined in the performed studies: the concentration of the organic substrate in the feed phase, the nature and concentration of the stripping agent in stripping phase, the type of membranes, the transport time.