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7252760 |
Waste liquid processing method and waste liquid processing apparatus using the same
A waste liquid processing method comprising a solvent separation process for separating a chlorine-based organic solvent contained in a waste liquid; a first vaporization process that includes...
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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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6814864 |
Extra-corporeal blood purification device
An extra-corporeal blood purification device includes a blood filter, and elements for measuring at least one parameter affected by filter resistance to liquid flow, elements for determining at...
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6793827 |
Method and device for preparing a medical fluid
A method for extracorporeal treatment of blood includes preparing a treatment liquid from a liquid and two concentrated solutions by circulating the liquid in a preparation conduit at a flowrate Q...
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6706171 |
Systems for treating wastewater in a series of filter-containing tanks
This invention relates to systems for treating wastewater and more particularly to removing nutrients from wastewater in a wastewater treatment system. Wastewater tanks, each having membrane...
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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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6287457 |
Water treatment device having volumeter driven monitoring discs
A water treatment device wherein the water during treating is brought into contact with a treatment medium (29), whereby this treatment medium (29), either by means of a regeneration medium (42) or...
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6261443 |
System for handling drain waters of different degrees of contamination
A drain water system includes a plurality of containers (7-9) within a building 1 for receiving respective drain waters differing in degree of contamination. A plurality of building 1 having such...
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6214214 |
Water treatment system with purge valve responsive to fluid signals
A water treatment system including a pair of water treatment tanks, each tank defining a flow path extending from a tank inlet to a tank outlet and containing a water treatment material disposed...
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6126815 |
Sequential air dissolved floatation apparatus and methods
Sequential DAF apparatus and methods providing zero pool and nonmechanical waste material removal are disclosed which include a number of floatation tanks each arranged to operate either...
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6036866 |
Apparatus and method for fluid treatment units connected in parallel
An apparatus and method for operating a system of two or more fluid treatment units connected in parallel, which fluid treatment units need to be regenerated as they become depleted, whereby a...
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6004463 |
Waste water treatment system and method
A waste water system adapted to receive liquid waste from a septic tank or the like and purify the same. There is a primary processing section comprising a first processing tank to receive the...
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5935522 |
On-line DNA analysis system with rapid thermal cycling
An apparatus particularly suited for subjecting biological samples to any necessary sample preparation tasks, subjecting the sample to rapid thermal cycling, and then subjecting the sample to...
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5876611 |
Intraoperative blood salvaging system and method
An apparatus is disclosed for salvaging a patient's own blood during intraoperative surgical procedures and reinfusing the blood, washed and filtered, to the patient substantially continuously,...
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5833844 |
Thermally-driven ion-exchange process for lithium recovery
Ions (e.g. lithium) can be removed or recovered from brines containing those ions and optionally one or more other ions (e.g. other alkali metal ions) by the use of a temperature-swing,...
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5833867 |
System and method for backwashing multiple filtration vessels
A filter media washing system for washing contaminants from filter media of a plurality of filtration vessels. Each filtration vessel has a filtration screen subdividing the filtration vessel into...
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5683576 |
Water ozonation treatment apparatus
The object of the present invention is a water treatment apparatus that integrates an ozone generator, CT and storage tanks and a microcontroller to treat water in accordance with proposed EPA test...
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5639377 |
Water treatment system
A method and apparatus for regenerating an ion exchange resin utilizing recycled solution or reused regeneration solution. At least one tank containing an ion exchange material is provided having a...
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5628899 |
Control mechanism for controlling regeneration of two water treatment tanks
A control mechanism for a liquid treatment system including a first tank having an inlet and an outlet and a second tank having an inlet and an outlet. The control mechanism includes an inlet...
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5578201 |
Apparatus for mixing liquids used in countercurrent multiphase liquid separation
A reusable apparatus for multiphase, multistage countercurrent liquid separation is presented. The apparatus is particular useful in progressive multistage separation of target microorganisms from...
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5512168 |
Programmable solid phase extraction and elution device
An automated, integrated system for programmably selectively extracting and purifying one or more particular solutes from a contaminated solution, said purified solutes then being recovered as a...
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5505846 |
Plate shifter for filter press
A filter press plate shifter assembly provided with a shifter housing having a center part which passes over the filter plates and housing parts positioned adjacent opposite side rails. The housing...
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5464530 |
Ion exchange methods and systems incorporating regenerant recycling
An ion exchanger of the countercurrent type includes a pressure vessel for supporting a resin bed. The vessel includes a first port through which water to be treated is supplied to the vessel...
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5423977 |
Rotary filter with automatic spray cleaning device for cleaning same
A continuous filtration device comprising a cylindrical filter rotationally driven around the axis thereof, a filtration tank in which an outer chamber having an inlet for a liquid to be cleaned...
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5403489 |
Solid phase extraction method and apparatus
A method and apparatus for performing solid phase extraction (SPE) on a fluid that contains solubles and suspended solids. The method includes: (a) providing a volume of fluid that contains...
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5395516 |
Filtration system
A filtration system for filtering dope of a solvent-spun fiber manufacturing plant in which dope to be spun flows from a source of supply (10) through a series of filter assemblies (15) (21) (23)...
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5385668 |
Apparatus for separating particulate material from a liquid medium
The invention relates to an apparatus in the form of a multi-cell installation, and a method for the recovery of metal values from a liquid medium 16 in the form of a pulp or leach solution in...
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5354471 |
Method of treating wastewater
Conventional biological processes for treating wastewater include the so-called activated sludge process which is continuous and the sequencing batch reaction (SBR) activated sludge process. The...
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5320747 |
Apparatus for removing solid matter from fluid systems
A method and apparatus for removing solid matter from fluid systems which does not require system shutdown and minimizes the loss of system fluids. The invention first isolates the solid matter...
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5300230 |
Comprehensive water treatment system
A method is disclosed for the cyclic regeneration of a water softening system having a plurality of parallel water treatment units, N, each containing a water softening treatment bed which requires...
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5288412 |
Gray water processing system
A modular gray water processing system is provided comprising a filter, an ultraviolet radiation chamber coupled to the filter and a storage tank for receiving and storing irradiated gray water...
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5282978 |
Specimen processor method and apparatus
A specimen processor, for operation with holder apparatus carrying a viewing screen and a filter device and a container of a biological sample, has a frame with reference structure for aligningly...
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5268094 |
Wastewater processing apparatus
A method is provided in accordance with this invention for treating wastewater in a tank having comminute, mix and settle sections. The method comprises receiving wastewater in the comminute...
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5232584 |
Method and apparatus for purifying and compacting solid wastes
The present invention relates to a multi-stage, single reactor, purification system for disinfecting, washing, and concentrating solid wastes, which include contaminated soil, highly concentrated...
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5096588 |
Method and system for optimizing the operation of a trickling filter
A method and system for optimizing the operation of a trickling filter. Optimization is obtained by using a pair of controlling devices, a timer and an electric motor in combination. The electric...
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5024766 |
Point of use deionized water purification unit
The deionized water purification of this invention is a small compact unit which is inserted between the purified deionized water distribution line in a plant water purification system and the...
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4997557 |
Floating, mixing, aerating and decanting unit
A mixing, aerating and decanting unit adapted for floating installation in a liquid treatment basin and operable to provide mixing, aeration, settling and decanting phases in an SBR (sequencing...
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4990245 |
Sequence controller system for regenerating water treatment units
A sequence controller system for regenerating a plurality of water treatment units in a water treatment plant. Each of the water treatment units has a timer and a multi-port valve for sequencing...
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4975206 |
Cooking oil filtering method using automatic sequence controller for plural vats
A cooking oil filtering method comprises the steps of connecting the drain outlets of a series of cooking vats to a pre-filter via inlet valves controlling the connection of each vat to the...
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4975196 |
Cyclic, multi-stage biological process for wastewater treatment
A method for anaerobic biological waste treatment in multiple stages wherein a relatively high strength wastewater is introduced into a first biological reactor to produce an effluent of reduced...
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4935151 |
Process and apparatus for degassing and filtering liquids
In a process for degassing and filtering liquids, particularly coating emulsions, a feed stream (F) is subdivided into a process stream (N), which is fed continuously to a process use through a...
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4923068 |
Automatic filter system
A method and apparatus for automatically propelling a charge of backwash fluid by a compressed gas such as steam to backwash a filter in a filter pair. The method and apparatus provides for...
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4869814 |
Apparatus for separating dispersed phases for fluid mixtures
An apparatus for separating dispersed phases from fluid mixtures comprising a fluid separation chamber provided with a plurality of fluid outlet ports for discharge of fluids with different...
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4775467 |
Reactor piping with pump column
A piping and flow control system for a wastewater reactor having a reaction vessel includes an influent distribution and sludge withdrawal conduit located near the bottom of the reactor, an...
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4724073 |
Reactor piping and flow control system
A piping and flow control system for a wastewater reactor having a reaction vessel includes an influent distribution and sludge withdrawl conduit located near the bottom of the reactor, and...
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4686045 |
Aeration of cesspools
Apparatus and methods for the aeration of cesspools in operation. In one embodiment there is a tool for inserting the aeration device under the bottom of the cesspool. The tool comprises a central...
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4634523 |
Fluid supply device with periodically positive and reverse flow cleaning cycle
The instant invention provides a fluid supply system, wherein in its working mode a pump delivers fluid through a filter in one direction to a discharge outlet, an improvement comprising a relief...
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4478713 |
Automatic installation for liquid chromatography
In the automatic installation for liquid chromatography according to the invention, the container of product to be fractionated is associated to a measuring container and is provided, as are the...
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4448682 |
Production of purified brine
An apparatus for the purification of salt brine having magnesium and calcium hardness includes means for treating a saturated salt brine containing magnesium and calcium ions with an alkali metal...
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4411779 |
Fluid treatment system
A fluid treatment system includes a tank divided into a horizontal series of filtering sub-chambers by perforated plates. A series of graded filtration media, beginning with a coarse medium and...
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