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7566396 |
Flow path switching valve and high performance liquid chromatograph using the same
The present invention is directed to reduce the dead volume in a flow path with trap functions. A flow path switching valve 1 is provided, which includes a rotor, i.e., rotor 3 , and a housing...
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7563410 |
Solid phase extraction apparatus and method
Devices, and methods of use thereof, receivable by autosamplers for processing fluids contains suspended solids and solubles in, for example, solid phase extraction, include an inlet chamber in...
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7563362 |
Auto-regenerable hot and cold water softener
The automatic regenerable cold/hot water softener includes a water softening tank having ion exchange resin and a regenerating tank filled with regenerating substance of the ion exchange resin. The...
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7553422 |
Method and device for purifying water of nuclear installations
A method of purifying water in a nuclear installation includes an ion exchange mechanism in which the water is purified with an ion exchanger. Before being guided over the ion exchanger, the water...
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7517451 |
Filter for drinking water
The present invention provides a filter for drinking water, including six filtering bottles. The fifth filtering bottle is formed with ion exchange resins, and the sixth filtering bottle is formed...
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7491322 |
Apparatus for removing phosphorus from wastewater
A method of and system for removing phosphorus from wastewater using a waste sludge that has a high affinity for phosphorus. In order for the waste sludge to be used in a flow-through contact...
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7445715 |
System for treating wastewater and a controlled reaction-volume module usable therein
A wastewater treatment system including a biological reactor is disclosed. At least one controlled-reaction-volume module is provided to the biological reactor. The at least one...
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7326349 |
Method and apparatus for purifying alcoholic liquors
After passing alcoholic liquors 20 through an HSO 3 type strongly basic anion exchange resin layer 14 , or after adding an HSO 3 salt to alcoholic liquors; the alcoholic liquors are passed...
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7309418 |
Water contaminant indicators
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...
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7285220 |
Water softener
Disclosed is a water softener capable of producing soft water at various temperatures and facilitating the regeneration of an ion exchange resin thereof. The water softener includes a water...
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7267769 |
Water purification system utilizing a carbon block pre-filter
A water purification system includes an activated carbon filter and a reverse-osmosis (RO) filter. The activated carbon filter is typically formed with a central aperture that receives an upper...
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7244356 |
Autotrofic sulfur denitration chamber and calcium reactor
The disclosure is directed to systems and methods for conditioning water in an environment for holding aquatic life. The systems include various chambers for processing water, such as a chamber...
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7160444 |
System for removing contaminants from storm water
A system for treating storm water in situ within a storm water drainage system includes a process chamber and treatment material that is contained within the process chamber. Preferably, the...
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7156992 |
Water treatment device
A water treatment device includes a case having an inlet fitting on an underside thereof and a plurality of cylinders overlapped and received in the case. Each cylinder has a tube received therein...
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7153698 |
Field-deployable cartridge method and test kit for arsenic
A method and test for field sample arsenic speciation in aqueous solutions, in particular, arsenic speciation in drinking water, is described. In particular, the method and test uses in series...
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7090771 |
Filtration system underdrain
The invention is directed to a filter underdrain for supporting a filter media between at least two dividers forming at least one cell, which includes at least one porous plate for supporting the...
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7081200 |
Swimming pool filter
The invention relates to a swimming pool filter that includes a filter body ( 1 ) being formed by a casing ( 2 ) with a top cover ( 3 ), and the cover ( 3 ) forms a water distributor ( 4 ), this...
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7033498 |
Cartridges useful in cleaning dialysis solutions
Cartridges useful in regenerating or purifying dialysis solutions are described as well as methods to regenerate or purify spent dialysis solutions. Dialysis systems using the sorbent cartridges of...
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7033493 |
Method and apparatus using super absorbent polymers for dehydration of oil
Water is separated from an emulsion of water and oil by passing the emulsion through a bed of superabsorbent polymer granules which break the emulsion and absorb water from the mixture of water and...
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7022229 |
Adsorption separation system
An apparatus is presented for separating chemicals using adsorption separation methods. The apparatus uses a plurality of adsorption units holding adsorbent, where the adsorption units are serially...
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7014783 |
Flow splitting weir
A method of minimizing head loss in a filter system including a plurality of drop pipes, a plurality of filter cells having a maximum influent level, and a distribution box having a maximum...
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6998046 |
Filter system and methods of operating the same
A filter system employing a modular filter and at least one high rate pre-treatment system for expeditiously and effectively filtering water. The modular filter includes a reservoir housing for...
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6997213 |
Low cost plate assembly for rotary valve
A multiport rotary valve is described providing the interconnection of a plurality of conduits with a predetermined cycle. The valve uses a stack of plates defining channels and ports to form the...
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6979402 |
Miniature actual moving bed assembly
An apparatus is presented for separating chemicals using adsorption separation methods. The apparatus uses a plurality of adsorption units holding adsorbent, where the adsorption units positioned...
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6955761 |
Multifunctional filter
Filters, more particularly to multifunctional filters that are capable of removing as well as adding components to a filtered material are provided by the present invention. In addition to a...
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6942795 |
Modular filter system and method of repairing and/or replacing components thereof
A modular filter system and a method of repairing and/or replacing one or more components thereof. The modular filter system includes a traveling backwash hood assembly and a plurality of filter...
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6921481 |
Automatic backwash filter system
The invention is directed to an automatic backwash filter system that includes at least one influent port for introducing a fluid to the filter; a plurality of partitions forming a plurality of...
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6896797 |
Sample supply apparatus for simulated moving bed chromatographic device
A simulated moving bed connected with a sample supply apparatus is constructed such that a sample liquid can be supplied continually to a simulated moving bed separation device without causing any...
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6857392 |
Aquarium pumping and airing apparatus
An aquarium includes a pump disposed in a chamber of a container to circulate water and having a spindle. An air supplying device is coupled to the spindle of the pump and driven by the spindle of...
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6821445 |
Rainwater-treating apparatus in combined sewer system and backwashing method therefor
The present invention is aimed at treating rainwater in a combined sewer system, while enabling removal of a majority of pollution substances even if a large amount of entering rainwater. The...
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6802970 |
Fluid treating device
A fluid-treating device containing a distributing device having a revolving disc in a stationary housing, and a motor for rotating the disc. Feed and discharge pipes are connected to an end wall of...
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6676622 |
Extracorporeal affinity adsorption methods for the treatment of atherosclerosis, cancer, degenerative and autoimmune diseases
Extracorporeal affinity adsorption treatments which are aimed at the substantial removal of two or more compounds that are etiological in the pathogenesis of diseases in man provide effective...
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6652750 |
Externally mounted bilge water filter and methods therefor
A bilge water filter for filtering bilge water discharged being drained from the bilge of a vessel includes a casing having first and second ends and at least one sidewall extending between the...
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6616852 |
Modular filter system
A modular filter system having a mechanism for performing a filter to waste step on the last cell of a multi-cell system following backwashing. A method of operating a modular filter system in...
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6582595 |
Compact water conditioning apparatus
The present invention relates generally to a water conditioning apparatus that is compact and easily recharged without removal from the installation location. In one embodiment, the present...
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6579445 |
System for the production of laboratory grade ultrapure water
There is disclosed a system capable of purifying water to a laboratory grade level that uses redox media, high energy catalytic activated carbon, ultraviolet radiation and high purity ion exchange...
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6551818 |
Biological filter structures
A cartridge for holding compost in a biofilter is substantially uniform in cross section perpendicular to the axis of the cartridge and has a sidewall formed with openings that are small enough to...
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6544413 |
Simulated moving bed device
This invention provides an ultra-micro simulated moving bed apparatus employing valve devices, each of which is applied to each unit column and comprises an eluent valve that opens or closes a...
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6471867 |
Electro-regenerating type apparatus for producing deionized water
An electro-regenerating type apparatus for producing deionized water, which comprises an electrodialyzer having cation exchange membranes and anion exchange membranes alternately arranged between...
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6432306 |
Device for the deionization of substances that are not stable at acidic pH
A process based on ion exchange with separated beds is disclosed for the deionization of substances that are not stable in the presence of strongly acidic cation exchangers, wherein the solution to...
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6368510 |
Method and apparatus for the removal of arsenic from water
A method and apparatus for removing arsenic from water at point of entry or point of use particularly for residential application. The point of entry system comprises a first stage having a...
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6312595 |
Water filtering system
A water filtering system includes a first filtering device connected between an inlet pipe and a fluid volume meter. A second filtering device is connected to the fluid volume meter and has a...
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6290842 |
Coagulator
A front packing medium accumulation layer (90) and a downstream packing medium accumulation layer (44) which are separated by a lower outflow prevention plate (40) are arranged within a coagulation...
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6287461 |
Tandem system for adsorptive separation
Adsorptive separation is performed on liquid media by directing the media containing a target substance through an adsorber stage A whereby the target substance is adsorbed; in the last phase of...
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6280623 |
Differential and continuous separation apparatus with controlled parameters for solids and liquids
By regulating separation system's relative parameters, this broad and generalized separation process is disclosed to distinguish the fundament between this invention and chromatography for superior...
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6217545 |
Filter with varying density which is responsive to fluid flow
A filter is provided within a transparent drinking straw. The filter has a dense core region and a less dense outer peripherial region. The filter is retained in place within the straw by...
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6190548 |
Multi-chambered treatment filter
An enclosed, elongated structure for placement in the ground to filter and biologically pretreat wastewater after it leaves a septic tank and before it enters a drain field. The structure includes...
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6177005 |
System for producing ultrapure water having a TOC density of no more than 0.5 ppb
Ultrapure water having a reduced amount of TOC and a low electrical conductivity is produced in correspondence with a variation in water quality of raw water. A first water tank has an anaerobic...
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6174433 |
Household wastewater purification system
A household wastewater purification system includes a first treatment tank having a household wastewater inlet in an upper part thereof, a photocatalytic decomposition treatment device having a...
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6149874 |
Rinsing apparatus in a simulated moving bed adsorption unit, and the use thereof
A rinsing apparatus used in a simulated moving bed feed adsorption unit includes a plurality of beds of an adsorbent, each being connected by a fluid distribution arrangement comprising a line for...
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