|| List of recent Water Purification-related patents
|Composite adsorbent material|
The invention relates to composite adsorbent materials, and in particular, to highly porous carbon-based composite materials for the adsorption and stabilisation of inorganic substances. The composite adsorbent material comprises a porous carbon carrier matrix and an adsorbent species, wherein the adsorbent species is precipitated within the pores of the carrier matrix.
|Water purification using energy from a steam-hydrocarbon reforming process|
A process for producing a h2-containing product gas and purified water from an integrated catalytic steam-hydrocarbon reforming and thermal water purification process. Raw water, such as salt water, is heated by indirect heat transfer with reformate from the catalytic steam reforming process for purifying raw water in one of a multiple effect distillation process and a multi-stage flash process..
|Full contact uv water purification system|
A water treatment system having modular-filter based residential reverse osmosis (ro) system that passes a stream of purified water through an ultraviolet light (uv) filter twice to ensure the water is sterile, while using only one uv filter, thereby forcing the water through a uv filter twice in a modular-filter based ro system. The water treatment system also includes a system whereby water passes through the uv filter at both points using only one uv filter by employing a system whereby a purified water stream is passed through a single remineralization module twice.
|Device for purification of sanitary waste water|
A device for the purification of organically polluted wastewater, including at least one biofilter for the wastewater purification, which biofilter includes a bioactive bed with a first layer of coconut mesocarp pieces, the device further including a water supply for supplying waste water to be purified to an upper part of the biofilter at a position above the first layer and a water collector for collecting purified water from a lower part of the biofilter at a position below the first layer. The mesocarp pieces of the first layer have a mean particle size of at least 1 cm, in that the first layer is compacted to have a density of between 75 and 275 kg/m3..
|Water purification system|
Purification of water is obtained by pumping water through a multi-stage filtration unit or a series of filters having increasingly smaller dimensional passages and then irradiating the water using uv light delivered at over 16,000 microwatts/cm2/sec. The system is advantageously portable for use in diverse environments and operable using a variety of power sources from solar to conventional fuels or electricity..
|Axial flow filter block for water purification|
A gravity-fed, axial flow filtration system for treating water is disclosed.. .
|Polymer filtration membranes containing mesoporous additives and methods of making the same|
Polymer composite membranes containing mesoporous particles which function in part as reinforcing agents, modifiers of polymer surface polarity, and membrane structure modifiers are provided. The composites provide superior resistance to internal damage and pore compaction, increased permeability to water with retention of separation fidelity, and resistance to chemical degradation and mechanical wear, along with minimal shedding of the reinforcing particles under applied pressure.
|Pre-filter water cleaner|
A pre-filter apparatus adaptable to increase life of a water purification unit comprises a water holding unit having a top cap and a bottom cap, a connector positioned at one-third length of the water holding unit, a water inlet unit located on the connector, a water outlet unit located on the top cap and a sediment drain positioned on a lower portion of the water holding unit. The sediment drain is capable of collecting sediments from water.
|Grafted membranes and substrates having surfaces with switchable superoleophilicity and superoleophobicity and applications thereof|
Disclosed herein are surface-modified membranes and other surface-modified substrates exhibiting switchable oleophobicity and oleophilicity in aqueous media. These membranes and substrates may be used for variety of applications, including controllable oil/water separation processes, oil spill cleanup, and oil/water purification.
|Apparatus, system and process for wastewater purification|
An apparatus, system, and process for wastewater treatment. The apparatus can include a basin for receiving a liquid to be treated, the liquid having a direction of flow, and a plurality of pendant sheets for supporting the growth of microorganisms, disposed within the basin and in contact with the liquid, wherein the pendant sheets are oriented parallel to the direction of flow of the liquid..
|Low-energy system for collecting matter|
A system for collecting matter provides a low energy, low cost and nearly zero pollutant process for extracting suspended matter in a medium. The system collects the matter on a material which is deployed into the medium, and the matter is extracted off the material.
|Method for calculating bill for use of water purification system and water purification system|
To provide a billing method for use of a water purification system that gives incentives for using the water purification system. Such a water purification system is equipped with water purification apparatus having controller and with monitoring server connected to water purification apparatus via public network and having controller.
|Apparatus for the use of nanoparticles in removing chemicals from aqueous solutions with subsequent water purification|
An apparatus for removing target chemicals from water includes a reaction chamber, a source of an aqueous solution of the target chemicals that can be supplied on demand to the reaction chamber, a timer that times a reaction between the particles and the target chemicals such that a concentration of the target chemicals in the aqueous solution reaches a predetermined low level in a desired time, and elements for removing the aqueous phase from the reactor while keeping the particles entrained inside the reactor using a microfilter configured to be back flushed, adding aqueous solution to the reactor from the source and continuing cycles until the particles are saturated, removing and replacing the particles in a final cycle of a particle charge lifetime, and recovering the target chemicals from the particles such that the particles can be reused.. .
|High flux hollow fiber ultrafiltration membranes and process for the preparation thereof|
The present invention relates to the production of high flux hollow fiber ultrafiltration membrane prepared from poly(acrylonitrile-co-methacrylic acid), (polysulfone and poly(acrylonitrile-co-methacrylic acid)) and (polysulfone and ion exchange resin (sulfonated polystyrene-divinyl benzene copolymer)) blend and the point-of-use filtration unit there from for water purification and disinfection. The produced membrane has an active layer with pore size which effectively rejects pathogens and other bacteria from contaminated water while allowing the passage of water to produce biologically pure water for drinking.
|Water purification compositions and applications for same|
Disclosed herein are compositions and corresponding methods for treating contaminated water and/or contaminable surfaces in order to kill, or otherwise reduce to non-harmful levels the survival of, biological contaminants resident therein and thereon, respectively.. .
|Membrane for water purification|
A porous membrane can include a polyazole.. .
|Purifier comprising a solids separation device, and method for wastewater purification|
The invention relates to a purifier (100) for the purification of a fluid such as wastewater, the purifier comprising:—a reaction vessel (10) for a fluid, the reaction vessel having a reaction chamber (11) and a bottom (12);—a downer (14) having a top end (91) and a bottom end (92), wherein the top end of the downer is connected to a fluid collector (13) to collect fluid from the reaction vessel (10), and the downer is arranged to transport the fluid towards the bottom (12) of the reaction vessel;—a solids separation device (20) arranged to separate solids from liquid, the solids separation device comprising a fluid inlet (72) arranged to introduce fluid into the solids separation device and a liquid discharge (56) arranged to remove separated liquid from the solids separation device; wherein the fluid inlet of the solids separation device (20) is connected to the bottom end (92) of the downer and the solids separation device is located on or near the bottom (12) of the reaction vessel.. .
|Methods of improving chitosan for water purification|
Methods for preparing a chitosan-based material for use in a halogen water treatment system are described. Treating chitosan or chitin with a compound selected from the group consisting of an acid, a base, a mild halogenating solution and combinations thereof provides a chitosan-based material that displays reduced leakage of halide ion.
|Functional chitosan scaffold with surface charge tunability as filtering medium|
The present invention discloses a method of preparing a functional chitosan scaffold and said functional chitosan scaffold for use as a filtering medium. Said method involves freeze-drying chitosan in the presence of appropriate cross-linkers and additives.
|Water purification system|
A water purification system disinfects incoming water by filtering the water before creating ozone from the water and directly into the water. After the water is disinfected by exposure to ozone, excess ozone is removed prior to providing the disinfected water to an end user.
|Water purification cartridge|
It is an object of the present invention to provide a water purification cartridge which can be manufactured in fewer steps and is provided with a raw water inlet composed of a mesh member having excellent durability. The present invention provides a water purification cartridge arranged between a raw water storage section and a purified water storage section of a water purifier and provided with a raw water inlet for taking raw water placed in the raw water storage section into the inside of the water purification cartridge to purify the raw water taken in from the raw water inlet by a filtering material, the water purification cartridge including a planar section above a water purification section in which the filtering material is arranged, wherein the raw water inlet is formed on the planar section with a planar mesh member..
|Water container having germicidal water purification unit|
A water container having a germicidal water purification unit. Water stored in a reservoir passes through a conduit that extends through an array of light sources that operate in at least one of the visible light frequency range and the ultraviolet frequency range to purify the water.
|Methods and systems for disinfecting potable water supplies|
The invention described herein contains two aspects, usable together or separately, that address the needs in the art described above, namely a first aspect that relates to the provision of a transportable water purification system that can be contained on a passenger transport vehicle, and that can use, but does not require, continuous, real-time monitoring, and a second aspect that relates to the use of uv purification of the water as it is uploaded to the passenger transport vehicle after a single pass through the uv chamber.. .
|Water purification device|
A water purification device includes a housing including a first chamber in communication with a second chamber, a first filtration stage, and a second filtration stage. The first chamber has the first filtration stage and the second filtration stage.
|Methods and apparatuses for water purification|
An apparatus for generating purified liquid from an input liquid, comprises, an evaporation chamber, wherein the evaporation chamber is flooded with the input liquid; and a condensation chamber having channels, wherein the channels are disposed in the input liquid, wherein liquid-saturated gases are generated from the input liquid in the evaporation chamber, wherein the liquid-saturated gases are guided into a first end of the channels, and wherein the purified liquid is outputted at a second end of the channels.. .
|Water purification apparatus and method|
Method for reducing the carbon footprint of a community by implementation of a water filter project comprises assessment of the viability of a filter system to determine the acceptability of said filter system for implementation in a community as substitute for the sterilization of water by boiling. Filter systems are transported to a community, for example a developing country where water is sterilized by boiling on a routine basis due to the presence of waterborne illnesses.
|Novel biocide composition|
The present invention relates to a novel biocide composition for use in gravity fed water purification devices and suitable for purifying water for drinking purposes and a process for preparing the novel biocide composition. The biocide tablet composition comprises one or more halogenated 5, 5-dialkylhydantoin compound; a chlorine biocide compound selected from trichloroisocyanuric acid (tcca) or sodium dichloroisocyanurate (nadcc) or mixtures thereof; 0.1-1.0% water soluble boron containing compound; wherein the ratio between the halogenated 5, 5-dialkylhydantoin compound and chlorine biocide compound is in the range 85:15 to 65:35 and the average particle size of the halogenated 5, 5-dialkylhydantoin compound and chlorine biocide compound is in the range 400 to1200 microns..
|Direct contact cell|
A direct contact cell is useful for the purification of water and sterilization of organics and inorganics used in water purification systems, such as waste water reuse. Specifically, this direct contact cell is useful for the treatment of flow back and produced waters in the oil and gas industry and also the mining industry, for the destruction of pathogens, heavy metals, suspended solids, iron, cyanide fats and organic material.
Graft copolymers of hydrophobic polymers and hydrophilic polymers, a method for their preparation, and their use in membranes for medical treatments such as hemodialysis, hemodiafiltration and hemofiltration, in membranes for water purification, and in membranes for bioprocessing.. .
|Process and apparatus for water purification|
A process for purifying water via freezing is disclosed. The process may include: contacting an aqueous mixture with a flotation medium, wherein the flotation medium has a density greater than or equal to the density of ice or hydrate and less than the density of the aqueous mixture or concentrated brine at its freezing point; reducing the temperature of the aqueous mixture to a temperature equal to or below the freezing point of the aqueous mixture to form ice or hydrate and a concentrate; phase separating the concentrate and the flotation medium; recovering the concentrate; and recovering the ice or hydrate and flotation medium as a slurry.
|Systems, apparatus, and methods for a water purification system|
A water purification system comprising a cross-flow filter is arranged to permit recirculation of the retentate or reject water from the retentate outlet of the filter to the inlet of the filter. A first pump is configured to pump source water into the feed water path of the filter, and to raise the fluid pressure in the feed water path and recirculation path.
|Anaerobic purification of waste water in an upflow reactor, and method of implementing same|
An anaerobic waste water purification upflow reactor, includes a vessel (1) containing biomass granules, elements for injecting influent into a lower part of the vessel, a three-phase separator (3) for separating gas, liquid and solid, which is located in an opposite upper part of the vessel, and elements for collecting effluent out of an upper part of the three-phase separator. The three-phase separator (3) includes two solid/liquid settlement zones (12, 13) positioned one above the other in the direction of the upflow (9), above a lower zone provided with gas separation element (10).