Novel membrane-based separation and oxidation technologies

Journal Article · Thu Dec 31 23:00:00 EST 1992 · Waste Management; (United States)

DOI:https://doi.org/10.1016/0956-053X(93)90072-5· OSTI ID:5607565

Guha, A K; Shanbhag, P V; Sirkar, K K ^[1]; Yun, C H ^[2]; Trivedi, D ^[3]; Vaccari, D ^[4]

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1. Stevens Inst. of Tech., Hoboken, NJ (United States). Dept. of Chemistry and Chemical Engineering
2. Korea Explosives Group, Daejon (Korea, Republic of)
3. Foster Wheeler USA Corp., Clinton, NJ (United States)
4. Stevens Inst. of Tech., Hoboken, NJ (United States). Dept. of Civil Engineering

By immobilizing the aqueous-organic interfaces in the pore-mouths of microporous hydrophobic hollow fiber membranes, solvent extraction can be carried out nondispersively with great efficiency. The performance of a compact hollow fiber module for extraction of a toxic heavy metal, Cu[sub ++], by a chelating extractant LIX84 in n-heptane is illustrated. Equally efficient extraction of multiple priority organic pollutants from a high strength waste stream is demonstrated. Employing this nondispersive extraction concept along with nondispersive gas absorption/stripping via microporous membranes, a novel membrane reactor for oxidation degradation of pollutants has been developed. Pollutants in an aqueous stream flowing through one set of hollow fibers are extracted into the shell-side of the reactor containing an inert fluorocarbon (FC) phase simultaneously saturated with O[sub 3] from a gas phase flowing through another set of hollow fibers. Ozonation of pollutants in the FC phase is highly efficient due to high O[sub 3] concentration and extraction of pollutants into the FC phase. Batch kinetic data for such two-phase ozonation are provided; continuous degradation of phenol in the novel reactor is demonstrated.

• OSTI ID: 5607565
• Journal Information: Waste Management; (United States), Journal Name: Waste Management; (United States) Vol. 13:5-7; ISSN WAMAE2; ISSN 0956-053X
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
AROMATICS
CHEMICAL REACTIONS
CONTROL
COPPER
ELEMENTS
EXTRACTION
HYDROXY COMPOUNDS
MEMBRANES
METALS
ORGANIC COMPOUNDS
OXIDATION
PERFORMANCE
PHENOL
PHENOLS
POLLUTION CONTROL
SEPARATION PROCESSES
TRANSITION ELEMENTS
WATER POLLUTION CONTROL