Mixed-Bed, Ion Exchange Device for Water Purification
Abstract
The purpose of this contract was to determine the feasibility of development and subsequent production of a small ion exchange device for water purification in a field setting. The device specifications included: a capacity of 1 g of NaCl; flow rates of 20-25 or 200-300 ml/min; removal of dissolved solids to less than 1 mg/ml; and operation in any orientation without channel formation. The work performed included selection of a mixed-bed, ion exchange resin combination after determination of working capacities, physical characteristics, and resistance to temperature stresses. Prototype housing design included analysis of: (1) device patents, (2) flow patterns, (3) bed volume changes, (4) connection requirements, and (5) housing materials; Construction included development of: (1) volume compensating frits, (2) inlet and outlet covers, (3) component design, (4) weld site engineering, and (5) manufacturing procedures. Two device designs were used to construct fully functional prototypes with working capacities of 6.5 and 1.0 grams of NaCl. These devices were effective in any orientation without evidence of channel formation at flow rates of 275 and 25 ml/min respectively....Ion exchange, Deionization, Water Purification, RA II, SBIR, Phase I, Water Supply.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1990
- Accession Number
- ADA259431
Entities
People
- Michael A Taylor