Fundamental Study on the Post Treatment of RO Permeates from Army Wastewaters.
Abstract
In the second year of this study, extensive effort was directed toward developing distillation, stripping, and solvent extraction techniques for determining organics in reverse osmosis (RO) permeates of hospital wastewaters. Methanol, acetone, 2-propanol, n-propanol, methyl ethyl ketone (MEK), and diethyl ether were determined by the distillation technique in RO permeates of composite wastes; using the stripping technique, acetone, 2-propanol, diethyl ether and MEK were found in RO permeates of the IT series. In addition, chloroform was detected by the stripping method at concentrations ranging from 15 to 124 nl/l in IT samples. With the use of solvent extraction, o-toluidine and N,N-diethyl-m-toluamide (DEET) were measured at sub-ppm levels along with trace amounts of phenolic compounds in RO permeates of composite wastes. In the ozonation part of this study, n-propanol, propionic acid, 2-propanol, MEK, acetic acid, diethyl ether, o-toluidine, methanol, and DEET were subjected individually to ozonation and UV-ozonation. In addition to monitoring the removal of these organics, their ozonation courses were followed. UV irradiation improved the percent organic carbon removal, although the reactant removal rate might not be enhanced.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1976
- Accession Number
- ADA035912
Entities
People
- Edward S. K. Chian
- Powell P. K. Kuo
Organizations
- University of Illinois Urbana–Champaign