Patent
UV-enhanced ozone wastewater treatment system
TLDR
In this paper, clarified liquid is filtered and exposed to ultraviolet radiation, and ozone is injected into the irradiated effluent and received within a contact tower where reaction between the contaminants and ozone takes place.Abstract:
Ozonated liquid is mixed within a multi-stage clarifier system with wastewater to be treated and suspended solids are removed. The clarified effluent is filtered and exposed to ultraviolet radiation. Ozone is injected into the irradiated effluent and received within a contact tower where reaction between the contaminants and ozone takes place. The ultraviolet irradiated, ozonated, and clarified liquid is recirculated through an ozone injector and discharged through a mixer plate into a purge chamber. The purge chamber effluent is split, with a portion returning to the contact tower and passing through a second ultraviolet radiation source, and the remaining purge chamber effluent being distributed within the clarifiers. After a predetermined residence within the system, a diverter valve in the return line is operable to discharge the treated water through a carbon filter and out of the system. The recirculation of the UV irradiated ozonated liquid provides both effective solids removal and reaction of the contaminants with the ozone to produce an acceptable treated water.read more
Citations
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Patent
Water purification unit
TL;DR: In this article, water to be purified swirls about a source (78) of ultraviolet radiaton to kill any microorganisms contained therein and flows through a carbon filter cartridge (110) mounted about the ultraviolet source to remove any chlorine and particulate matter.
Patent
Industrial waste water treatment
Robert B. Coate,John T. Towles +1 more
TL;DR: In this paper, a waste water treatment system is illustrated which can be configured to be portable and which minimizes the addition of solids to be disposed of through the use of ozone for contaminant reduction to basic elements after the pH value of the waste water to be treated is properly adjusted.
Patent
Microporous diffusion apparatus
TL;DR: In this paper, an active in situ multi-element gas sparging for bioremediation or physico-chemical degration for removal of contaminants in a soil formation containing a subsurface groundwater aquifer or a substantially wet unsaturated zone is described.
Patent
Decontamination of water by photolytic oxidation/reduction utilizing near blackbody radiation
TL;DR: In this article, a photolytic oxidation utilizing near blackbody radiation utilizing near-blackbody radiation has been demonstrated in a reactor system for decontamination of water using broadband radiators.
Patent
Modular ozone water treatment apparatus and associated method
TL;DR: In this article, an ozone generator tube including an inner electrode formed of a mass of helical windings produces a high concentration of ozone from a cooled air supply and a length of tubing is connected downstream from the infusion chamber to enhance the contact time between the ozone and the contaminants.
References
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Patent
Purification of water through the use of ozone and ultraviolet light
TL;DR: A radiation housing as mentioned in this paper is a hollow cylindrical chamber located around an elongated tubular lamp for producing actinic light such as ultraviolet light, which can be used to oxidize organic contaminants and kill microbiological contaminants through the utilization of ultraviolet light and ozone.
Patent
Methods and apparatus for treating a liquid with a gas
TL;DR: In this paper, a liquid feed is introduced to the initial stage of a multi-stage device for dissolving the gas in the liquid and a liquid recycle line is provided for returning and combining treated liquid with the incoming feed.
Patent
Catalytic process for ozonation of water containing organic contaminants
TL;DR: In this article, an improved catalytic process for the ozonation of water containing organic contaminants is described, in which the water, which may be either waste water or potable water, containing contaminants is contacted with ozone, preferably at a pH in the range of about 6.8 to about 7.8 (controlled by buffering if necessary), in the presence of a mixed heterogeneous catalyst comprising water insoluble salts, preferably an insoluble carbonate, sulfate, oxide, halide or sulfide.
Patent
Water treating apparatus
TL;DR: In this article, the ozone supplied from an ozone supplying apparatus was mixed with and dissolved in water in a water circulating pipe, which takes water (W) out from a water pool 40 and return water to the pool, to sterilize water flowing in the pipe 12 by the ozonic sterilizing effect.
Patent
High pressure oxygen-saturated water treatment apparatus
TL;DR: In this article, the improved high pressure oxygen-saturated water treatment apparatus of the present invention functions to provide super saturated oxygen treatment to waste water for purification thereof, and the apparatus includes a pressurized treatment tank having a substantial longitudinal dimension, with a chamber separation plate forming two interconnected chambers.