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1. US20130087507 - Use of cactus mucilage as a dispersant and absorbant for oil in oil-water mixtures

Office
United States of America
Application Number 13687595
Application Date 28.11.2012
Publication Number 20130087507
Publication Date 11.04.2013
Grant Number 09163374
Grant Date 20.10.2015
Publication Kind B2
IPC
B01D 15/04
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
15Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
04with ion-exchange materials as adsorbents
C02F 1/28
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
28by sorption
B01D 15/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
15Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
E02B 15/00
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
BHYDRAULIC ENGINEERING
15Cleaning or keeping clear the surface of open water; Apparatus therefor
B01J 20/24
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
22comprising organic material
24Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
C02F 1/68
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
68by addition of specified substances, e.g. trace elements, for ameliorating potable water
CPC
E02B 15/00
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
BHYDRAULIC ENGINEERING
15Cleaning or keeping clear the surface of open water; Apparatus therefor
B01J 20/24
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
22comprising organic material
24Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
B01J 2220/4825
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2220Aspects relating to sorbent materials
40Aspects relating to the composition of sorbent or filter aid materials
48Sorbents characterised by the starting material used for their preparation
4812the starting material being of organic character
4825Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
B01J 2220/485
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2220Aspects relating to sorbent materials
40Aspects relating to the composition of sorbent or filter aid materials
48Sorbents characterised by the starting material used for their preparation
4812the starting material being of organic character
485Plants or land vegetals, e.g. cereals, wheat, corn, rice, sphagnum, peat moss
C02F 1/286
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
28by sorption
286using natural organic sorbents or derivatives thereof
C02F 1/682
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
68by addition of specified substances, e.g. trace elements, for ameliorating potable water
682by addition of chemical compounds for dispersing an oily layer on water
Applicants University of South Florida
Inventors Norma A. Alcantar
Dawn I. Fox
Sylvia Thomas
Ryan G. Toomey
Agents Robert J. Varkonyi
Smith & Hopen, P.A.
Title
(EN) Use of cactus mucilage as a dispersant and absorbant for oil in oil-water mixtures
Abstract
(EN)

Despite advances in off-shore oil exploration and drilling technology, accidental oil spills do occur. Depending on their magnitude and location, irreparable damage may be inflicted on marine and coastal ecosystems. Emulsification of a water/surfactant/oil system results in the production of oil droplets and this depends on the formulation and composition variables, mixing characteristics and system preparation. Thus, research is ongoing on improving methods of cleaning up oil spills. Cactus mucilage was used to disperse and absorb oil from a simulated oil slick in different salt concentrations. Results show correlations between emulsion properties and interfacial characteristics of mucilage as function of aqueous phase salinity. Mucilage powder added to the oil floating on the water dispersed the oil film and absorbed the oil while remaining afloat, facilitates removal of the oil-mucilage aggregate. This invention is a competitive treatment for oil spill remediation with the added advantage of being more environmentally friendly.


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