63 results about "Water contaminants" patented technology

An apparatus for separating water contaminants from a fuel which has a specific gravity which is lower than that of water. Contaminated fuel is drawn from a bottom of a tank and passed into a separator. The water stays at the bottom of the separator and is drained off. The fuel is forced upwardly from which any droplets of water flow along collector plates and fall to the bottom of the separator. The fuel is passed through a filter which removes any particles of matter then the fuel is directed back to the tanks. The process can be repeated for as many times as necessary to cleanse the fuel of water and contaminates.

A filtering device for a gravity-flow liquid treatment system includes a first filter component that can be either exposed or adjacent to a substantially transparent region in at least a portion of a filter housing. The first filter component is capable of providing a visual indication of exposure to at least one contaminant. The contaminants for which the first filter component can indicate exposure include particles, inorganic, and organic contamination. Particle contamination is indicated by a change in color of the first filter component through particle collection. Inorganic and organic contaminants are indicated by reaction with at least one agent capable of undergoing a color-change reaction in response to at least one contaminant. Water treatment systems and filtration devices that include at least one agent capable of undergoing a color-change reaction and thus give a visual indication of exposure to at least one contaminant for use in both gravity-driven and pressure-driven environments are also described.

The present invention is generally directed to devices and methods for sensing a variety of biologically-related substances and / or chemical substances. In a device aspect, the present invention is directed to a multilayer device for sensing metal ions, non-biological molecules, biological molecules, or whole cells. In a method aspect, the present invention is directed to a method for sensing species such as ions, protons, metal ions, non-biological molecules, whole cells, and biological molecules, for example one or more biologically-related substances such as proteins, nucleic acids, DNA, RNA, enzymes, and chemical substances such as water contaminants.

An apparatus and method for evaluating chemicals of interest in a subsurface bore hole, such as a groundwater sampling well. An absorbent member is attached to a flexible liner, and the liner is everted by fluid pressure down the borehole. The everted liner presses the absorbent member against the wall of the borehole. Any chemicals of interest are absorbed into the absorbent member from the media surrounding the borehole. The liner, with associated absorbent member thereon, is then extracted from the borehole. The absorbent member may then be subjected to any suitable laboratory analysis to evaluate the type, spatial distribution, and concentration of chemicals of interest, such as water contaminants occurring in the borehole.

The invention provides an interface assembly for delivering an ionized analyte from an ionization apparatus into an ion mobility spectrometer. This allows analysis of biological and non-biological samples, even non-volatile solids, via differential mobility spectrometry, without fragmentation of molecules. The invention also provides portable sample analysis systems that operate at ambient pressure. Systems of the invention may be used for high molecular weight species detection, for example, drinking water contaminants, pathogenic biological agents, bio-organic substances, non-biological material, peptides, proteins, oligonucleotides, polymers, bacteria, and hydrocarbons.

An apparatus, method, and system for recovering oil from a submerged oil source, wherein the system includes a submerged conduit having at least two openings, with a first opening capable of being located in proximity of a leak in order to capture leaking oil, and with a second opening capable of communicating captured leaking oil to another location. A natural gas separator, coupled to the submerged conduit separates the boiling vapor phase natural gas from the captured oil thereby outputting oil with water contaminant. An oil / water separator coupled to the natural gas separator then separates out the contaminant water, resulting in a processed recovered oil product for storage and subsequent refinement. The flow to capture the leak is induced by generating a lower pressure at nozzle in the conduit via power jet, air lift, pumping of fluid out of conduit close to sea level, or other methods. Flow within conduit can become self-propelled if natural gas is present and creates an “air lift” effect as the natural gas expands at lower pressures closer towards sea level.

By sequentially aligning various filtration media and delivery systems, enhanced synergistic reduction of water contaminants is obtained compared to the prior art or separate use of the individual media / filters. Specific filtration media are formulated with proper proportioning and sequencing to enhance the ability to reduce metals that cause staining, odors and bad taste such as iron, copper and manganese. Also disclosed is the reduction of potentially hazardous metal radionuclides metals such as uranium, iodine, cesium, plutonium and radium. Also disclosed is improved removal of heavy metals such as arsenic, lead, chromium, and mercury as well as organic compounds such as halogenated carcinogenic compounds. The present devices and methods remove specific bacteria and their toxins from water to reduce the risk of dermatitis. Thus, the present invention enhances our ability to achieving cleaner and safer water for drinking, swimming, washing, bathing and cooking.

Zero valent metal composite, manufacturing thereof, using thereof, and system including thereof, for (in-situ or ex-situ) catalytically treating contaminated water, such as sub-surface water, surface water, above-surface water, water vapor, or / and gaseous water. Composite includes powdered diatomite matrix incorporated with nanometer (1-1000 nm) sized particles of a zero valent (transition) metal (iron, cobalt, nickel, copper, zinc, palladium, platinum, or / and gold) and at least one electron transfer mediator (catalyst) from porphyrinogenic organometallic complexes (e.g., metalloporphyrins (chlorophylls, hemes, cytochromes) or metallocorrins (e.g., vitamin B12), and optionally, includes vermiculite. System includes composite and in-situ or / and ex-situ unit containing the composite, enabling exposure of contaminated water thereto. Applicable to in-situ sub-surface permeable reactive barriers (PRBs). Treatable water contaminants are organics (halogenated organic compounds), or / and inorganics (metal elements, metal element containing inorganic species, nonmetal elements, and nonmetal element containing inorganic species). Applicable to non-aqueous fluids (liquids, vapors, gases), for removing contaminants therefrom.

Runoff water from parking lots and filling stations is cleaned by first passing via an inlet pipe tangentially into a vortex chamber where the swirling action separates the contaminants from the water. Floating contaminants are stored in the vortex chamber, trapped at the top of the chamber by the roof of that chamber and at the lower part of the chamber by a skirt. That roof has an access opening to permit removal of the floating contaminants. The body of the fluid thereafter moves downward into a settling chamber where heavier-than-water contaminants settle. As the fluid in the settling chamber builds up, it passes through cleaning screens to a clean water outlet. A by-pass overflow pipe to process very large volumes of water extends upward from the settling chamber. Each screen may have louvers for preventing contaminants from blocking the screen.

The invention discloses an underground water contaminant movement simulation device on the transfluence condition and a using method, and belongs to the technical field of underground water contamination simulation instrument equipment. The underground water contaminant movement simulation device comprises a pressure supply unit, a water supply unit, an earth pillar unit and a sample receiving unit. The pressure supply unit comprises a pressure air cylinder, and a pressure reducing valve is arranged at an outlet of the pressure air cylinder. The water supply unit comprises a closed organic glass pillar I capable of bearing pressure. The earth pillar unit comprises an organic glass pillar II capable of bearing pressure. A simulated earth pillar is arranged inside the organic glass pillar II. The top and the bottom of the simulated earth pillar are water-bearing layer settlings, and the middle of the simulated earth pillar is weak water permeable layer settling media. The sample receiving unit comprises a water stabilizing tank and a sampler with scale marks. The pressure reducing valve, the organic glass pillar I and the organic glass pillar II are sequentially connected through guiding pipes. The organic glass pillar II, the water stabilizing tank and the sampler are sequentially communicated through guiding pipes. The high water head difference supplied by underground water transfluence and the reducing environment of the weak water permeable layer are provided, the transfluence water head difference is 0-15 cm, operation is easy, adjustment is convenient, and test data is more accurate and reliable.

A portable water purification system and method of operation of the system is disclosed that may comprise a container defining a water purification chamber; a plurality of UV generating light sources distributed in the purification chamber of the container; and a portable power source electrically connected to the light sources, and adapted to convert kinetic energy to electrical energy to provide to the light sources. The portable power source may be adapted to be driven by human motive power to provide the kinetic energy. The purification system may comprise a filling opening to the container; and a filter intermediate the filling opening and the chamber adapted to remove turbidity from the water entering the water purification chamber through the filling opening. The portable power source may comprise a hand-cranked electrical generator. The UV light sources may produce UV light in a wavelength band selected to effectively deactivate all harmful biological water contaminants, and produce UV light in a dosage sufficient to effectively deactivate all harmful biological water contaminants.

Provided is a cucurbituril-containing polymer. The cucurbituril-containing polymer may be used in removal, separation, or purification of air pollutants, water contaminants, biological substances, organic or inorganic substances, alkaline metals, heavy metals, ionic or water-soluble biological substances. The cucurbituril-containing polymer may be a stationary phase that may be used for column chromatography.

The invention provides an interface assembly for delivering an ionized analyte from an ionization apparatus into an ion mobility spectrometer. This allows analysis of biological and non-biological samples, even non-volatile solids, via differential mobility spectrometry, without fragmentation of molecules. The invention also provides portable sample analysis systems that operate at ambient pressure. Systems of the invention may be used for high molecular weight species detection, for example, drinking water contaminants, pathogenic biological agents, bio-organic substances, non-biological material, peptides, proteins, oligonucleotides, polymers, bacteria, and hydrocarbons.

A method of removing barium from a liquid includes adding a two-dimensional metal carbide water contaminant adsorbent to water to adsorb contaminants, such as barium (II), from the liquid. The two-dimensional metal carbide water contaminant adsorbent is in the form of at least one MXene, having the formula Mn+1Xn, where n=1, 2 or 3, M is an early transition metal, such as scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), yttrium (Y), zirconium (Zr), niobium (Nb), molybdenum (Mo) or the like, and X is either carbon or nitrogen. The MXene may be Ti3C2. The liquid may be, for example, at least one water by-product from at least one oilfield reservoir, such as produced water, co-produced water or a combination thereof.

A device installable into a tap to detect the presence of one or more types of contaminants in the tap water. When the tap is operated, a sample chamber fills with the tap water, such that one or more electronic receivers are capable of detecting the presence of contaminants. Preferably, at least one of the one or more electronic receivers is a photometric sensor for detecting absorption of ultraviolet (UV) light in the 250 nm to 300 nm range. A UV254 LED can be activated when water fills the sample chamber, and a measurement circuit calculates Total Organic Carbon (TOC) by correlation with UV254 absorbance. The device can transmit contamination data, including, but not limited to TOC levels, to a remote apparatus for remote monitoring of the tap water.

System, method, and computer program product embodiments are provided that can support touch interaction on a projective capacitive (PCAP) display system in the presence of water contamination. According to an embodiment, a system includes a touchscreen coupled to a controller. The controller determines the presence of water contamination on the touchscreen, and obtains measurements during a mixed-mode measurement frame that includes a self-mode measurement and a mutual-mode measurement. Based on the measurements obtained, the controller determines a touch on the touchscreen in the presence of the water contamination on the touchscreen. In some embodiments, the self-mode measurement includes measurements collected at a both lower and a higher drive frequency, the higher drive frequency may be in the frequency range of 100 kHz to 500 kHz. In another embodiment, the self-mode measurement includes simultaneously measuring both horizontal-electrodes and vertical-electrodes.

Runoff water from parking lots and filling stations is cleaned by first passing it via an inlet pipe tangentally into a vortex chamber where the swirling action helps to separate the contaminants from the water. Floating contaminants are stored in the vortex chamber, trapped at the top of the chamber by the roof of that chamber and at the lower part of the chamber by a skirt which is part of the chamber and extends downwardly for a limited distance from the inlet pipe. That roof has an access opening to permit removal of the floating contaminants. The body of the fluid thereafter moves downward into a settling chamber where heavier-than-water contaminants settle to the bottom where they can be removed during regular cleaning. As the fluid in the settling chamber builds up it passes through cleaning screens to a clean water outlet. A by-pass overflow pipe to process very large volumes of water extends upward from the settling chamber and ultimately feeds the outlet pipe. Each screen may have louvers projecting from the screen for preventing contaminants from blocking the screen.

A negative pressure microbubble ozonized water method relates to a water treatment method and overcomes the problem of that the ozonizer has a large ozone output, the pressure is large, the reactor has a high effective depth, the compressor has a large load, and consequently the power consumption is large and the cost is high, which are caused by the lower gas solution efficiency and the lower ozone utilization ratio of the present ozone oxidation water treatment method. In the present invention, ozone enters into the reactor in an ultramicro bubble gas-water mixed liquor fashion by adopting a negative pressure adding method cooperating with a bubble shearing-machine and a high efficiency gas distributor, and completes the oxidation removing of the water contaminant in the reactor; wherein the ozone adding quantity is 0.5~800 mg / l water, the contact time between ozone and water is 5~100 minutes, the water surface height is 0.8~6 m, and the high efficiency water distributor is arranged in a three layers fashion. The method of the present invention can obviously improve the ozone gas solution efficiency and the ozone utilization ratio, reduce the height of the reactor, and reduce the requirement for the output and the pressure of the ozonizer, so as to reduce the cost.

A filtering device for a gravity-flow liquid treatment system includes a first filter component that can be either exposed or adjacent to a substantially transparent region in at least a portion of a filter housing. The first filter component is capable of providing a visual indication of exposure to at least one contaminant. The contaminants for which the first filter component can indicate exposure include particles, inorganic, and organic contamination. Particle contamination is indicated by a change in color of the first filter component through particle collection. Inorganic and organic contaminants are indicated by reaction with at least one agent capable of undergoing a color-change reaction in response to at least one contaminant. Water treatment systems and filtration devices that include at least one agent capable of undergoing a color-change reaction and thus give a visual indication of exposure to at least one contaminant for use in both gravity-driven and pressure-driven environments are also described.

An apparatus and method for evaluating chemicals of interest in a subsurface bore hole, such as a groundwater sampling well. An absorbent member is attached it a flexible liner, and the liner is everted by fluid pressure down the borehole. The everted liner presses the absorbent member against the wall of the borehole. Any chemicals of interest are absorbed into the absorbent member from the media surrounding the borehole. The liner, with associated absorbent member thereon, is then extracted from the borehole. The absorbent member may then be subjected to any suitable laboratory analysis to evaluate the type, spatial distribution, and concentration of chemicals of interest, such as water contaminants occurring in the borehole.

The present invention relates to the waste water processing field in environmental projects, and relates to the waste water processing field in paper manufacturing industry, in particular to a new technique for the clarification of paper manufacturing waste water by using a synusiologic method. The synusiologic processing method of the paper manufacturing waste water of the present invention comprises the steps of waster water discharge, mesh gauze filtration, collecting basin bleeding, air supporting or sendimentation process, sendimentation basin bleeding, anaerobic pond and facultative pond pumping, fertilizer feeding, stabilization pond bleeding, adjusting basin bleeding, clean water leading-in and ground runoff wetland system entrance. The synusiologic processing method of the paper manufacturing waste water of the present invention can enable the COD value and the SS value of complex waste water to obviously reduce, the pH value is closed to 7, and water quality is clean without flavor. The water quality is superior to the one-grade standard of water contaminant discharge of the paper manufacturing industry, and clean water needed by an adjusting basin can flow back into the adjusting basin without outer discharge, so complete cleaning self circulation is realized.

Novel macromolecules for filtering contaminants from water and non-aqueous solutions. Molecules such as polyethyleneimine (PEI) may be functionalized, cross-linked, and / or quaternized to improve their binding capacity or selectivity with particular water contaminants such as bromide, nitrate, and sulfate. The macromolecules may be either recyclable or non-recyclable, and may be recovered or separated from water using means such as ultrafiltration, flocculation, or immobilization on a substrate.

The various embodiments of the present disclosure relate generally to bacterial biomineralization of contaminants and, more particularly, to methods, systems and compositions for the biomineralization of soil and water contaminants, such as metals and radionuclides. In one aspect of the present invention, a method for the in situ biomineralization of a soil contaminant comprises: providing a plurality of bacteria to a soil comprising at least one contaminant, wherein at least one bacterium expresses a phosphatase; providing a phosphate-rich material to the soil; reacting at least one bacterium expressing a phosphatase with the phosphate-rich material in the presence of the contaminant; and immobilizing the contaminant in the soil.

The invention relates to a method for treating black and odorous contaminated water of rivers by adopting a modularized treatment device. The method comprises the following steps: (1) providing the modularized treatment device; (2) placing the modularized treatment device obtained in the step (1) in a target water area; and controlling parameters as follows: the planting density range of aquatic plants is 15 plants / m<2> to 35 plants / m<2>, and the specific surface area of a filler is 250m<2> / kg to 380m<2> / kg; the loaded amount of a microbial agent is 0.1kg / m<2> to 0.9kg / m<2>; and the water coverage area of the modularized treatment device is 15% to 35% the area of the target water area; and (3) placing the treatment device in the target water area for 10 to 15 days so as to enable the microbial agent to be successfully attached to and colonized into the filler; and then, keeping the treatment device in the target water area for 90 to 120 days, so as to complete treatment on the target water area. According to the method, the microbial agent is used for removing organic contaminants, the aquatic plants are used for absorbing nutrients from the water, and thus, the efficiency of greatly removing water contaminants is achieved; and meanwhile, the device employed in the method has the characteristics that the structure is simple, the mounting is convenient, the cost is low, the size can be changed according to field conditions through re-assembling of the device, the maintenance and management are simple, and reuse is achieved.

The invention relates to the intelligent water bottle fields, and especially relates to the a water bottle with a filter and monitoring function for detecting contaminants. The water bottle comprises a bottle body and a base, the base is provided with a sample chamber, the sample chamber collects water poured into the bottle, and the water bottle is characterized in that the water bottle also comprises a contaminant detection device, a wireless controller, and a receiving and displaying device; the contaminant detection device for detecting a level of water contaminants in the sample chamber; the wireless controller is used for transmitting and receiving data; the receiving and displaying device is connected to the wireless controller for receiving and displaying related information from the intelligent water bottle.

The embodiments herein relate to a method of synthesizing new improved reactive terpolymer, S-MMA-X (styrene / modified maleic anhydride / X) wherein X is any type of polymers. The method involves synthesizing styrene-modified maleic anhydride complex (SMMA) with the ability to react with all kinds of polymers to produce new reactive terpolymer with formation of nano particles inside them. The nanoparticle formations improve the physio-chemical, thermal and mechanical properties of the newly formed reactive terpolymer when compared to natural rubber, their derivatives, EPDM or other known polymer etc. Depending on the property of the end product polymers produced by the invention, the end use can be varied. In one embodiment, the polymer X is natural rubber (NR) and the end product terpolymer is used as bitumen modifier. In another embodiment, the polymer X is ethylene-propylene diene monomer (EPDM) and the end product terpolymer behaves like a smart particle and absorbs oil and water contaminants.

A low-permeability contaminated site cyclically-controllable underground water remediation system is provided, wherein the center of an underground water contaminant plume with a permeation coefficient of 1-0.01 m / d is provided with a pumping well, and the pumping well is connected with an underground water distributor tank through a pumping guide pipe; a plurality of water injection wells are arranged around the underground water contaminant plume, an injection guide pipe is arranged in each water injection well, and the injection guide pipes are connected with the underground water distributor tank through a contamination multi-reinforcement treatment unit. The invention also discloses a method remediating underground water contamination by using the above remediation system. A cyclic flow field is formed through artificial hydraulic control and provides continuous flushing for a contaminated area, thereby efficiently removing contaminants from underground water; the whole remediation process is simple, an adsorbing material is easy to change, operability is high, and remediation cost is low.

A disubstituted cucurbituril-bonded silica gel and its use are provided. The disubstituted cucurbituril-bonded silica gel is useful for removal of air pollutants or water contaminants, and separation and purification of biological, organic, inorganic, or ionic substances.