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Water Treatment Patent

Water treatment method and apparatus


A water treatment method and apparatus is described for generating a supply of activated water containing oxidants, including hydroxyl radicals, hydrogen peroxide, and hydroperoxy radicals, but excluding ozone. The apparatus includes a generator having ultraviolet lamps to which air is exposed to create activated air. To suppress the generation of ozone in the activated air, the air subjected to the ultraviolet lamps is maintained at a relative high humidity. Also, the activated air is generated in the presence of a catalyst and using 254 nm light, both of which are believed to aid in the destruction of any ozone generated by the exposure of the air to other wavelengths of the uv light. The catalyst also provides additional oxidants in the air. The activated air is entrained in the water using an injector to thereby produce the activated water. A mixer can be used to subject the activated water coming from the injector to turbulent flow conditions to thereby further break up the activated air within the water. In one specific application, the activated water is utilized as a part of a method and apparatus for washing laundry. The laundry is agitated in wash water made up from the activated water. The wash water can be continuously recirculated from the chamber containing the wash water and laundry, through the injector where additional activated air is added, then through the mixer, and thereafter back into the chamber.

Water treatment for dialysate preparation


Water treatment and pretreatment methods and processes for use in a dialysate preparation machine are described. In one aspect, water is passed through a first filter having chlorine removal properties and then passed into a line. Water is removed from the line at a sample location. The removed water is periodically sampled for the presence of chlorine or chloramines. The presence of chlorine or chloramines indicates that the filtration capacity for chlorine of the first filter is substantially exhausted. The method further includes the step of filtering the water downstream from the sample location in a second filter having chlorine removal properties, and replacing the first filter if chlorine or chlorine is detected during the sampling step. Water pretreatment may be provided by mixing hot and cold water from a source with a temperature-controlled mixing valve and passing the water through the first filter, so as to provide warm, filtered water to the dialysate preparation machine.

Household waste water treatment and recycling system

A household waste water treatment and recycling system comprising a rigid septic tank having a hollow body with a top opening and a lid secured over the top opening to thereby create an enclosed gas chamber, the body having first, second, third, and fourth chambers formed therein, and with the third chamber having a layer of granulated charcoal disposed therein and the fourth chamber having gravel disposed therein, the body further having an input port formed thereon and placed in communication with the first chamber, and a filtering port thereon allowing communication between the third and the fourth chambers, and an output port formed thereon placed in communication with the fourth chamber, the input port securable to a waste water line of a home for allowing waste water to enter the body, and the output port allowing treated water to exit the body, and with the lid having an evacuation outlet formed thereon, the septic tank further having a first channel for allowing communication between the first chamber and the second chamber, a second channel for allowing communication between the second chamber and the third chamber, a third channel for allowing communication between the third chamber and the fourth chamber.


Method and apparatus for controlling concentration of water treatment chemicals
Electrolysis based water treatment
Point-of use water treatment system
On premise water treatment system and method
Risers for a waste water treatment facility
Water treatment method and apparatus
System for controlling water treatment based on plankton monitoring
Water treatment agent and water treatment method for a boiler
Reactor and heat exchanger system for cyanide waste water treatment
Control system for meter actuated regeneration in a water treatment system
Water treatment unit and equipment having the unit
In-home water treatment system
Ballast water treatment systems including related apparatus and methods
Urban runoff water treatment methods and systems
Waste water treatment device

251 5765403 Water treatment method and apparatus
252 5762782 Water treatment for dialysate preparation
253 5738781 Household waste water treatment and recycling system
254 5738780 Voltage converter for water treatment system UV bulb
255 5736035 Outlet filter for waste water treatment tank
256 5730878 Contaminated waste-water treatment method and device
257 5719100 Water treatment compositions
258 5716519 Apparatus for discharging fluid additives into a water treatment vessel
259 5707534 Use of tabletized ionene polymers in water treatment
260 5707524 Process for waste water treatment
261 5705069 Centrifugal water treatment device
262 5700371 Water treatment cartridge and base
263 5699930 Tank assembly and method for water treatment
264 5693226 Apparatus for demonstrating a residential point of use water treatment system
265 5690830 Waste water treatment apparatus and washing method thereof
266 5679257 Industrial waste water treatment
267 5676836 Method for waste water treatment using charcoal biologically activated
268 5674402 Method for the treatment of water treatment sludge
269 5667673 Microbial mediated water treatment
270 5658462 Process for recovering protein, fatty and water components from a float material produced by a waste water treatment system
271 5654198 Detectable water-treatment polymers and methods for monitoring the concentration thereof
272 5637214 Filter assembly for water treatment apparatus
273 5637212 Dry cleaning waste water treatment machine having recirculating arrangement
274 5635575 Agent for water treatment containing a polymer for water treatment and a process for producing said polymer
275 5635063 Water treatment apparatus
276 5626769 Ozone water treatment method and apparatus
277 5624995 Agent for water treatment containing a polymer for water treatment and a process for producing said polymer
278 5624205 Landfill water treatment system
279 5620601 Wear strip assembly for use in a waste water treatment facility
280 5614098 Nocardia foaming controlling method of waste water treatment
281 5611926 Water treatment device
282 5611918 Electronic driver for water treatment system UV bulb
283 5601704 Automatic feedback control system for a water treatment apparatus
284 5599443 Apparatus for waste water treatment using charcoal biologically activated
285 5593574 Water treatment system particularly for use in aquaculture
286 5584411 Tank assembly and method for water treatment
287 5580458 Method for waste water treatment using calcium carbonate mineral and microorganisms in combination
288 5578214 Apparatus and method for waste water treatment utilizing aerobic and anaerobic microorganisms and capable of exhaust gas treatment
289 5569379 Grit collector for waste water treatment facility
290 5545330 Water treatment system
291 5543049 Microbial mediated water treatment
292 5540819 Water treatment method
293 5536409 Water treatment system
294 5536394 End of life mechanism for water treatment cartridge
295 5527451 Water treatment device with volume totalization valve
296 5525257 Composition for water treatment containing polyaspartic acidora derivative thereof and a polcarboxylic acid and methods of using the composition
297 5525214 Filter cartridge for water treatment device
298 RE35252 Fluid flow control device for water treatment systems
299 5520803 Mobile waste water treatment device
300 5512178 Water treatment method and apparatus therefor

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