Multipurpose Mobile Wastewater Treatment using MLM and DNF for AFFF
Agency / Branch:
DOD / USAF
Two new families of Liquid Membranes have been developed for cleaning oily waste water and removing dissolved solids from water. One, called Membrane-Like-Material (MLM) is formed using chlorinated solvents, which are solvents removed to far below their solubility in water. The dissolved materials in the water are not removed by the MLM and a second system based on surfactant mono-layers on air bubbles coated with the ions of Alum and Sodium Hydroxide is used to effect the separation of heavy metals from water. It is proposed that these two proceses be combined to use the same hardware to use both at the same time. Since the chemistry of each is not effective with the other, this should be possible. Thus, materials such as TCE in the presence of heavy metals in the water can be processed with a single treatment stage as one unit process only. In addition, the TCE is used to remove itself from the water, and once started the process will continue with recovered TCE. Four experiments are proposed to improve various aspects of these two technologies. The Bubble Generation of mono-layer bubbles has a lot of development room left. The MLM process could perhaps be done in the vapor phase, and dilute aqueous MLM solvent systems are known to exist. Any or all of these avenues of improvement will lead to less equipment being required.
Small Business Information at Submission:
Principal Investigator:James Keane
Kenterprice Research, Inc.
23 South Harlan St York, PA 17402
Number of Employees: