Alliedsignal Inc.

Biotechnology Research and Development Corporation

The United States of America as Represented by the Department of Agriculture

United States Department of Agriculture

United States of America Department of Agriculture

Biotech Research and Development Corporation

Louis J DeFilippi

David L Compton

Joseph A Laszlo

Steven Grall

Francis Stephen Lupton

F Stephen Lupton

Mansour Mashayekhi

James R Goodman

James F Kinney

Sugata Sanyal

Timothy P Love

A chemical composition comprising a linker agent and a compound comprising at least one UV-absorbing chromophore, wherein the linker agent is characterized by the general formula: wherein Xand Xare the same or different, and at least one of Xor Xis a functional group that bonds with the compound comprising at least one UV-absorbing chromophore, and b+f&#x2267;2, Y comprises an O, N, or S that is substituted or unsubstituted, each a, b, c, e and f is &#x2267;0 and a+b+c+e+f&#x2267;2, d is 0 or 1, n1 and n2 represent the number of hydrogen atoms required to complete the undesignated valencies, and m ranges from 1 to about 100 and each individual m unit may be the same or different.

Compositions comprising a UV-absorbing chromophore

A product for topical application comprising a chemical composition comprising in combination a linker agent and a compound comprising at least one UV-absorbing chromophore, wherein the linker agent is characterized by the general formula: 

Formulations with feruloyl glycerides and methods of preparation

A method of making a compound having the structural formula:  wherein at least two of R, R, and Rare non-fatty acid carboxylates, and the other of R, R, and Rare each either a C-Cfatty acid moiety, OH, or a non-fatty acid carboxylate, wherein the first and second non-fatty acid carboxylates, when present, are the same or different, comprising (a) partially deacylating a triacylglycerol so as to provide a mono- or diacylglycerol, (b) reacting in a reaction mixture an acyl ester of the phytochemical with said mono- or diacylglycerol in the presence of a esterase catalyst under conditions that permit transesterification of said ester with said mono- or diacylglycerol, and (c) recovering said compound from said reaction mixture.

Methods of making compositions comprising a UV-Absorbing chromophore

A biologically active support is provided for removal of pollutants such as aliphatics, aromatics, heteroaromatics and halogenated derivatives from waste streams. The support contains a particulate adsorbent such as activated carbon bound by a polymer binder to a substrate such as a polymeric foam, and a bound pollutant-degrading microorganism. The adsorbent adsorbs a target pollutant, and the microorganism degrades the pollutant. Preferably, the microorganism is aerobic and the binder has a T of lower than or equal to about 25&deg; C. The adsorbent adsorbs excess pollutant when the pollutant concentration increases and releases the pollutant when the concentration decreases. This maintains the pollutant concentration at a level which does not inhibit the microorganism. The biologically active support can be used in conventional biological waste treatment systems such as continuous stirred reactors, fixed-bed reactors and fluidized bed reactors.

Biologically active support containing bound adsorbent particles and microorganisms for waste stream purification

A biologically active support for removing pollutants from a fluid stream such as waste water is prepared. The support is formed of a polymeric foam substrate coated with a composition containing a particulate adsorbent which adsorbs, then releases pollutants, and a polymeric binder that binds the adsorbent to the surface of the substrate. The binder contains a suspension aid, and one or more pollutant-degrading microorganisms are adhered to the surface of the coated support. The binder preferably has a T.sub.g of lower than or equal to about 250.degree. C. and may be a latex. Examples of suspension aids are surfactants and polyanionic polypeptides such as ammonium caseinate. The adsorbent is preferably a carbon material such as coal, charcoal, carbon black and activated carbon. Other adsorbents are silica gel, active clays, zeolites, hydrophobic and ion exchange resins, and molecular sieves. To remove pollutants, the biologically active support is placed in a reactor and a fluid stream containing a pollutant such as phenol is passed through the reactor where the pollutant is degraded by the microorganism and adsorbed to the adsorbent. The adsorbent acts as a buffer by adsorbing excess pollutant from solution when the pollutant concentration increases and when the pollutant concentration decreases releases pollutant into solution where the microorganism degrades the pollutant.

Support containing particulate adsorbent and microorganisms for removal

This invention relates to a process for remediating vaporous pollutants which comprises passing a vaporous stream containing one or more of pollutants through a bioreactor, the bioreactor comprising a plurality of biologically active bodies, the biologically active body comprising a macroporous substrate and one or more of microorganisms capable of remediating one or more of said pollutants, wherein the substrate is fabricated from a decomposition-resistant material. The present invention further provides an apparatus for this process.

Apparatus for biological remediation of vaporous pollutants

Process for biological remediation of vaporous pollutants

This invention relates to a process for reducing the concentration of an organic and/or inorganic pollutant in a fluid stream which comprises passing the stream through a bioreacter containing a fixed biologically active biomass comprising an effective number of open or substantially open spaces and a plurality of biologically active bodies comprising a hydrophobic polyurethane substrate having an effective amount of one or more microorganism capable of metabolizing at least one of the said pollutant on, in or on and in said substrate in the absence or in the substantial absence of an absorbent.

Process and apparatus for removal of organic pollutants from waste water

Chromium in solid waste residues may be immobilized by reduction of essentially all of the Cr(VI) to insoluble Cr(III). The Cr(VI) is separated from the solids by contacting with an acid to produce an aqueous solution having a pH of about 6.5 to 9.5, then adding sulfate-reducing anaerobic bacteria and, as required, a source of sulfates and nutrients for the growth of the bacteria. Where the solid residues are below the surface of the soil, a continuous recirculation may be established to extract Cr(VI), treat the resulting solution above grade to reduce Cr(VI) to Cr(III), and return the treated solution to the soil.

Bioremediation of chromium (VI) contaminated solid residues

A method of reducing soluble Cr(VI) levels in aqueous wastes from 200 ppm or more to less than 1 ppm, particularly to less than 0.05 ppm, preferably to less than 0.01 ppm, uses fermentative sulfate-reudcing anaerobic bacteria to reduce Cr(VI) to Cr(III) and immobilize the latter as the extememly insoluble hydroxide. The process is readily adapted to operate continuously using a bioreactor containing sludge with sulfate-reducing anaerobic bacteria and operated as a chemostat.

Growing community of inventors

Palatine, IL, United States of America

Louis J DeFilippi