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5997737 Portable skid mounted desalination apparatus  
In a offshore oil and gas platform located over seawater in an open sea environment, the platform having drilling equipment, crew quarters, and a potable water holding tank for holding potable...
5989416 Wastewater treatment system  
A filter bed base for the treatment of wastewater discharged from a dwelling, business or like producer. The filter bed base is generally rectangular in shape and includes an upper and lower...
5972209 System for circulating the finishing fluids of electrode discharge machine  
A circulation system is capable of dual functions of providing an electrode discharge machine with water or oil to serve as a finishing fluid for the process of drilling fine holes in a work piece...
5972216 Portable multi-functional modular water filtration unit  
A portable multi-functional modular water filtration unit having configurable modules that can be adapted to render environmental water potable or to isolate contaminants from groundwater or water...
5968369 Method and apparatus for waste water treatment  
An apparatus and method for removing contaminants from waste water directs the waste water through a first magnetic field. An ionic polymer is introduced into the waste water after the waste water...
5965015 Oil-water separator system with oleophobic fibrous filter  
An oil-water separator system and method to separate contaminated oil and water into clean water and free coalesced oil for collection and removal. The system includes a process tank for the oil...
5958233 Apparatus for efficiently dewatering corn stillage solids and other materials  
A new process and apparatus efficiently dewater aqueous solids residual after fermentation and distillation, such as corn stillage. The feed stream of aqueous solids slurry is fractionated into...
5958240 System for recycling waste water  
An apparatus and method for treating waste water to generate clarified water for reuse in industrial processes which includes the steps of adding agents to the waste stream to generate floccules,...
5954959 Microdialysis unit for molecular weight separation  
The present invention relates generally to an apparatus and method for separating high molecular weight molecules from low molecular weight molecules. More specifically, the invention relates to...
5951863 Water purification using reverse osmosis device for formulation of medical solution  
Medical drug formulation and delivery system includes a reverse osmosis device for purifying water from a source comprising a housing having an inlet for passage of water from the source, a first...
5944987 Multipurpose combinatory oil, air, gas, & pollution filtration system  
The present invention especially for machine applications, also improves the invention air cleaning device, U.S. Pat. No. 4,585,599 dated Apr. 29, 1986. The present invention is the said air...
5944986 Liquid purification apparatus  
A magnetic separation apparatus which coagulates substances to be removed in liquid by adding magnetic substances and a flocculent to liquid to be treated and adsorbs and captures the thus...
5932091 Oily waste water treatment system  
The effluent outflow from a shipboard oil/water separator is further reduced in oil content by passage through ultrafiltration membranes arranged in series as an added downstream treatment prior...
5922198 Mobile process for the recovery of spent heat transfer fluids  
A mobile process to reclaim spent aqueous glycol solutions used as heat transfer fluids and which contains deleterious contaminants, oil/grease, corrosion products, and additives such as buffers...
5908550 Water reclamation system for a vehicle wash system  
A water reclamation system for a vehicle wash system that provides water that is purified to enable reclaimed water to be used in a positive displacement pump. The reclamation system provides for...
5906748 Separation of toxic metal ions, hydrophilic hydrocarbons, hydrophobic fuel and halogenated hydrocarbons and recovery of ethanol from a process stream  
This invention provides a process to tremendously reduce the bulk volume of contaminants obtained from an effluent stream produced subsurface remediation. The chemicals used for the subsurface...
5906738 Apparatus and method for removing impurities from aqueous hydrogen peroxide  
Impurities are removed from aqueous hydrogen peroxide by treating the aqueous hydrogen peroxide by reverse osmosis, cation-exchanging the aqueous hydrogen peroxide and anion-exchanging the aqueous...
5888385 Vehicle coolant recycling  
An apparatus for the treatment and recovery of spent vehicle coolant that involves the following steps: a) removing the spent coolant from the engine; b) treating the spent coolant with sodium...
5882509 Chip-washing arrangement  
Apparatus for treating wash water is disclosed. The apparatus includes a settling tank in which sludge is separated from the wash water, a circulation tank for temporary storage of the clean wash...
5879552 Method and apparatus for a self-purifying filter system  
A self-purifying filter apparatus comprising (1) a filter having a first surface and a second surface; (2) flow control means, such as a vacuum pump, for causing a stream of fluid interspersed...
5871620 Process and device for reducing the nitrate content of water  
To decrease the nitrate content of water, it is proposed to reduce nitrate to nitrogen in two stages. The first of these stages is a photochemical reduction to nitrite, and the second stage is a...
5868927 Apparatus and method for treating waste water from a residential home  
Disclosed is a system for processing relatively small volumes of waste water such as that found in residential home use. The system first comprises a chamber adapted to hold the waste water. The...
5851985 Treatment of tumors by arginine deprivation  
Method, compositions and apparatus for the treatment of tumors by systemic deprivation of an essential amino acid, preferably of arginine, by extracorporeal treatment of the patient's blood...
5843386 Hydrothermal reaction apparatus  
A safe and efficient hydrothermal reaction apparatus is described herein. Decomposition or synthesis of object material is performed by the continuous passing of the material through a flow...
5843305 Sewage and wastewater treatment plant using anaerobic and aerobic microorganisms  
A sewage and wastewater treatment plant which comprises a bioreactor having an anaerobic treatment tank for anaerobic treatment, an aerobic contacting tank and a microorganism separation tank...
5840183 Apparatus for the separation of materials, especially for the separation of oil and other substances from water  
An apparatus for the separation of oil and other substances from a liquid such as water consisting of a first, vertical and mainly cylindrical reservoir in which separation takes place by means of...
5833841 Method and apparatus for purifying water and for maintaining the purity thereof  
The invention relates to a method and apparatus for purifying and maintaining the purity of water in a swimming pool by initially feeding into the pool water treated in an ion exchanger to render...
5833868 Portable water recycler  
A portable water recycler for cleaning and recycling water used in a produce washing system or another similar system. The portable water recycler is most particularly advantageous in the...
5833846 High-purity water producing apparatus utilizing boron-selective ion exchange resin  
A high-purity water producing apparatus has an excellent effect of environmental protection and is also capable of effectively removing boron. It comprises a pretreatment unit, and a double pass...
5824215 Water purifier  
A water purifier includes a support body having a wide bottom portion for supporting the purifier, and a vertical wall panel having front and rear sides. Filter members for purifying water are...
5820752 Methods and apparatus for recycling used antifreeze/coolant  
A recycling apparatus which preferably treats used antifreeze/coolant in four cycles is disclosed. The recycling apparatus includes a number of tanks for storing the antifreeze/coolant during the...
5814498 Process for the recovery of organic acids and ammonia from their salts  
A process recovers organic acid and ammonia from their salts preferably obtained from microbial fermentation of a saccharide in a nutrient. The fermented materials is passed through a...
5788838 Ultrapure water production system having pretreatment system for performing both anaerobic and aerobic organism treatments  
There is provided an ultrapure water production system which allows recycled waste water to be microbially treated and thereby reclaimed without causing any clogging of treatment system due to...
5776335 Gas entrainment flotation reactor with arrangements for separating solids from liquids  
A flotation/entrainment reactor is poured with a plurality of concentric tubes forming respective chambers, the tubewear for receiving and filtering a liquid from solids contained therein, and...
5776346 Method and apparatus for making water having purified and activated functions  
Method and apparatus for treating water used in daily life such as city or well water to obtain purified and activated water having various functions such as detergency, bactericidal and...
5766439 Production and recovery of organic acids  
A process is described for producing organic acids such as lactic acid. The process includes the steps of producing lactic acid by fermentation, resulting in an aqueous fermentation broth...
5766454 Home wastewater treatment and denitrification system  
A wastewater treatment system: The system entails an aerobic tank and an anaerobic tank. Wastewater enters the aerobic tank where it is aerobically treated. The effluent then flows to the...
5766452 Water purifier having control valve for discharging waste water  
A water purifier includes a main body on which filters are mounted for receiving and purifying water. One of the filters is a membrane filter which produces waste water discharged through a...
5741416 Water purification system having plural pairs of filters and an ozone contact chamber  
The present invention provides a self-contained, self-monitoring water purification system able to be transported to and used in remote areas. The system processes contaminated water through a...
5741420 Dew forming prevention apparatus  
A water purifier includes a plurality of filter members for purifying fresh water. A first connecting hose supplies fresh water to one of the filter members, and additional connecting hoses...
5730878 Contaminated waste-water treatment method and device  
A waste-water treatment device that includes a coalescing plate separator (CPS) for receiving waste-water and for specific gravity separation of hydrocarbon fluids and particles having a lower...
5725777 Reagent/drug cartridge  
A reagent cartridge for reacting a soluble reagent with a fluid diluent is disclosed having a fluid inlet for accepting a diluent and fluid outlet for expelling a solution. The cartridge casing...
5720869 Equipment and process for producing high-purity water  
A high-purity water producing equipment comprises a primary purification treatment system, a primary deionized water tank, a secondary purification treatment system for producing high-purity water...
5707514 Water treating method and apparatus treating waste water by using ion exchange resin  
A water treating apparatus is provided which can treat waste water for use as raw water in an ultrapure water producing system without addition of various kinds of chemicals. The apparatus...
5704989 Closed loop surface cleaning system  
A method for removing contaminants from a surface such as pavement using a portable closed-loop system which is transported to the location to be cleaned by a vehicle. The method includes storing...
5702609 Water retrieval from aqueous mixture of organic phosphates  
Process and apparatus for separating aryl phosphates and esters and hydrolysates thereof from water in an aqueous mixture thereof. A superposed layer of the mixture is decanted from a lower layer...
5690827 Sewage treatment system using peat and a constructed wetland  
A system and method of sewage treatment which comprises the sequential steps of: (i) subjecting waste water to be treated to a primary settling means to remove settleable solids and suspended...
5690817 Photographic effluent treatment apparatus  
It is known to treat the effluent resulting from photographic processing apparatus. Such treatment takes the form of either neutralization where the effluent is mixed with a neutralizing solution...
5681462 Device for separating liquids of differing density  
A device for separating liquids of differing density including a container 10 for the liquid, the container having at least two outlet openings 12, 14. In addition, at least one coalescer element...
5681728 Method and apparatus for the recovery and purification of organic acids  
The present invention relates to methods and apparatus for reducing the fouling of ion-selective membranes used in the electrodialytic purification of organic acids. More particularly, the present...