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公开(公告)号：US20240316526A1
公开(公告)日：2024-09-26
申请号：US18614054
申请日：2024-03-22
IPC分类号： B01J19/12 , B01J31/16 , B01J35/39 , C01B15/027
CPC分类号： B01J19/127 , B01J31/1691 , B01J35/39 , C01B15/027 , B01J2219/0869 , B01J2219/0877 , B01J2219/0892 , B01J2219/1203 , B01J2231/005 , B01J2531/842
摘要： A photocatalytic reactor includes a polymeric side-emitting optical fiber having a coating with a photocatalyst embedded in a porous polymer, a light source optically coupled to the polymeric side-emitting optical fiber and configured to irradiate the photocatalyst, and a multiplicity of oxygen-permeable hollow-fiber membranes. The polymeric side-emitting optical fiber and the multiplicity of oxygen-permeable hollow-fiber membranes are configured to be at least partially immersed in water. When at least partially immersed in water, the multiplicity of oxygen-permeable hollow-fiber membranes is configured to provide dissolved molecular oxygen to the water, and the coating is configured to allow diffusion of the dissolved molecular oxygen into the coating and to allow diffusion of hydrogen peroxide out of the coating.
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公开(公告)号：US12092602B2
公开(公告)日：2024-09-17
申请号：US17206935
申请日：2021-03-19
申请人： Paul K. Westerhoff , Sergio Garcia-Segura , Shahnawaz Sinha , Rishabh Bansal , Rafael Verduzco , Michael S. Wong
发明人： Paul K. Westerhoff , Sergio Garcia-Segura , Shahnawaz Sinha , Rishabh Bansal , Rafael Verduzco , Michael S. Wong
CPC分类号： G01N27/308 , C02F1/46109 , C02F2001/46147
摘要： An electrode includes an electrically conductive substrate with a coating containing boron-doped diamond (BDD) nanoparticles. Fabricating the electrode can include dispersing BDD nanoparticles in a solvent to yield a suspension, coating a conductive substrate with the suspension, and drying the suspension to yield the electrode. In some cases, fabricating the electrode includes combining BDD nanoparticles with a polymeric resin precursor to yield a mixture including a metal oxide, coating a conductive substrate with the mixture to yield a coated substrate, and calcining the coated substrate to yield a metal oxide coating including BDD nanoparticles. In certain cases, fabricating the electrode includes combining powdered activated carbon with polymeric linkers to yield a polymeric precursor solution, combining BDD nanoparticles with the polymeric precursor solution to yield a mixture, coating a conductive substrate with the mixture to yield a coated substrate, and crosslinking the polymeric linkers to yield the electrode.
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公开(公告)号：US11667550B2
公开(公告)日：2023-06-06
申请号：US17245640
申请日：2021-04-30
申请人： Paul K. Westerhoff , Francois Perreault , Sergio Garcia-Segura , Shahnawaz Sinha , Ana Barrios , Renato Martin Montenegro Ayo
发明人： Paul K. Westerhoff , Francois Perreault , Sergio Garcia-Segura , Shahnawaz Sinha , Ana Barrios , Renato Martin Montenegro Ayo
CPC分类号： C02F1/46109 , A45F3/18 , C02F1/325 , C02F1/4672 , A45F2003/003 , C02F2001/46142 , C02F2001/46171 , C02F2201/009 , C02F2303/04 , C02F2305/023 , C02F2305/10 , C02F2307/02
摘要： A water-disinfecting apparatus includes a vessel with a cathode, an insert with a photoanode, an ultraviolet light source configured to be positioned in the insert, and a power source. The cathode forms an electrically conductive layer on an inner surface of the vessel. The photoanode is configured to be positioned in the cathode. The power source is configured to be operably coupled to the cathode, the photoanode, and the light source.
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公开(公告)号：US10590020B2
公开(公告)日：2020-03-17
申请号：US16252261
申请日：2019-01-18
申请人： Onur Apul , Paul Dahlen , Paul K. Westerhoff
发明人： Onur Apul , Paul Dahlen , Paul K. Westerhoff
IPC分类号： C02F11/18 , C02F11/04 , C02F11/14 , C02F11/13 , C02F11/143 , C02F11/131
摘要： Wastewater sludge is treated by combining the sludge with a carbon-based dielectric additive that includes carbon to yield a modified sludge, irradiating the modified sludge with microwave radiation to yield a treated sludge, and providing the treated sludge to an anaerobic digester.
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公开(公告)号：US20190218128A1
公开(公告)日：2019-07-18
申请号：US16252261
申请日：2019-01-18
申请人： Onur Apul , Paul Dahlen , Paul K. Westerhoff
发明人： Onur Apul , Paul Dahlen , Paul K. Westerhoff
摘要： Wastewater sludge is treated by combining the sludge with a carbon-based dielectric additive that includes carbon to yield a modified sludge, irradiating the modified sludge with microwave radiation to yield a treated sludge, and providing the treated sludge to an anaerobic digester.
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公开(公告)号：US20210340034A1
公开(公告)日：2021-11-04
申请号：US17245640
申请日：2021-04-30
申请人： Paul K. Westerhoff , Francois Perreault , Sergio Garcia-Segura , Shahnawaz Sinha , Ana Barrios , Renato Martin Montenegro Ayo
发明人： Paul K. Westerhoff , Francois Perreault , Sergio Garcia-Segura , Shahnawaz Sinha , Ana Barrios , Renato Martin Montenegro Ayo
摘要： A water-disinfecting apparatus includes a vessel with a cathode, an insert with a photoanode, an ultraviolet light source configured to be positioned in the insert, and a power source. The cathode forms an electrically conductive layer on an inner surface of the vessel. The photoanode is configured to be positioned in the cathode. The power source is configured to be operably coupled to the cathode, the photoanode, and the light source.
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公开(公告)号：US20210032130A1
公开(公告)日：2021-02-04
申请号：US17063510
申请日：2020-10-05
摘要： A reactor for water splitting or water treatment includes a first electrode, a second electrode electrically coupled to the first electrode, and a proton exchange membrane separating the first electrode and the second electrode. The first electrode includes a first optical fiber coated with a photocatalytic material.
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公开(公告)号：US20180319677A1
公开(公告)日：2018-11-08
申请号：US15971083
申请日：2018-05-04
CPC分类号： C02F1/288 , B01J20/20 , B01J20/3225 , B01J20/3236 , C02F1/5245 , C02F2101/12 , C02F2103/007 , C02F2103/06 , C02F2103/08 , C02F2305/08
摘要： Compositions for bromide removal include a two-dimensional material impregnated with silver. The silver may be impregnated in the two-dimensional material by contacting the two-dimensional material with silver ions in an aqueous solution, allowing the silver ions to adsorb on the two-dimensional material, and drying the two-dimensional material. Removing bromide from an aqueous composition including bromide may include contacting the aqueous composition with a two-dimensional material impregnated with silver, and allowing the bromide to react with the silver to yield silver bromide.
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公开(公告)号：US09751785B2
公开(公告)日：2017-09-05
申请号：US14509722
申请日：2014-10-08
IPC分类号： C02F1/30 , C02F1/32 , C02F1/44 , C02F1/70 , C02F1/00 , C02F101/16 , C02F101/22
CPC分类号： C02F1/70 , C02F1/008 , C02F1/30 , C02F1/32 , C02F1/444 , C02F2101/163 , C02F2101/22 , C02F2209/003 , C02F2209/005 , C02F2209/02 , C02F2209/06 , C02F2209/15 , C02F2209/22 , C02F2209/40 , C02F2305/10 , Y02W10/37
摘要： A water treatment system including: a flow regulation control system configured to combine oxo-anion-contaminated water with a reduction-promoting agent, a hole scavenger, or both; a reactor fluidically coupled to the flow regulation control system; a first set of system control probes configured to monitor the concentration of oxygen and oxo-anion in the contaminated water; a second set of system control probes configured to monitor concentration of the oxo-anion and reduction products of the oxo-anion in treated effluent from the reactor; and a controller configured to control the flow regulation control system, thereby controlling the flow rate of the contaminated water and the at least one of the reduction-promoting agent and the hole scavenger to the reactor based at least in part on the concentration of oxo-anion and the reduction products of the oxo-anion in the treated effluent.
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公开(公告)号：US11774341B2
公开(公告)日：2023-10-03
申请号：US17447259
申请日：2021-09-09
申请人： Paul K. Westerhoff , Shahnawaz Sinha , Yuqiang Bi
发明人： Paul K. Westerhoff , Shahnawaz Sinha , Yuqiang Bi
CPC分类号： G01N15/06 , G01N31/22 , G01N2015/0011 , G01N2015/0681 , G01N2015/0693
摘要： Quantifying nanobubbles in solution includes combining an indicator with a fluid comprising nanobubbles to yield a first solution, bursting the nanobubbles in the first solution to yield a second solution, and assessing a difference between the first solution and the second solution to yield a concentration of the nanobubbles in the first solution, a concentration of reactive oxygen species in the first solution or the second solution, or both.
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