In a liquid purification system, a plenum defining walled housing including a blower and walled drain receptacle having protuberances to space the receptacle from the housing wall to define a lineally extending exhaust passage therebetween sized to provide sound baffling and air exhaustion, the housing further including a pair of filter casings and a pump which are mounted on a frame which absorbs vibrations of the pump independently of the housing.

A liquid purification arrangement comprising a housing having an ambient inlet and lineally extending exhaust passage between the housing wall and a drain pan, the housing having a liquid inlet and outlet for a liquid system disposed within the housing which system includes a pump to move the liquid in the system, a blower, an orificed, looped liquid circuit and filtering arrangement, a moveable frame support, a disinfection/rejuvenation receptacle, an ultra-violet and distillation microbial red...

Apparatus for removing impurities and noxious materials from exhaust gases generated by the combustion of fuels in which the gases are passed through an agitation chamber containing an absorber liquid and provided with agitators for extraction of the impurities and noxious material therefrom.

A system for purifying an exhaust gas of an internal combustion engine for controlling the flow of a primary air to be supplied to an inlet manifold to give a proper air-fuel mixture ratio in accordance with the opening of the throttle valve and for controlling the flow of a secondary air to be supplied to an exhaust manifold to enable the reactor to effect the reduction of unburned compounds present in the exhaust system in accordance with the vehicle driving condition. To this end, there is pr...

A water purifying apparatus comprising a body portion supporting a tank containing a plurality of hollow filter elements, the body portion having an inlet port adapted to be connected to a source of untreated water and a discharge port adapted to be connected to the system to be supplied with water, the body portion containing valves which may be manually controlled to direct the untreated water either through the filter elements into the discharge port, or directly to the discharge port.

A process for purifying crude adiponitrile which comprises contacting crude liquid adiponitrile with oxygen or a gas containing molecular oxygen at a temperature of from 120.degree. to 300.degree.C. to thereby convert impurities in the crude adiponitrile into colored high-boiling compounds, and separating adiponitrile from the colored, high-boiling compounds by distillation under reduced pressure.

A device for purifying polluted water comprises an immersion body having a surface which provides a receiver of biological turf and which is continuously alternately immersed in the water to be purified and brought in contact with air. The body comprises a reel or drum on the surface of which is wound a hose of a stable cross section and preferably extending in helical multiple superposed layers. The drum is advantageously arranged horizontally within the water to be treated and is rotated about...

A method of purifying crude bis(perfluoroalkyl) nitroxide comprising contacting said crude nitroxide with mercury at a temperature between about -10 and 35.degree.C. utilizing a reactant mole ratio of crude nitroxide of said mercury to said crude nitroxide of between about 1:10 and 100:1 to form a bis(perfluoroalkyl) nitroxide mercuride intermediate, separating said mercuride, and heating said separated mercuride at between about 50 and 100.degree.C. to reform said mercury and bis(perfluoroalkyl...

An exhaust gas purifying device comprises an improved control system for controlling a device for regulating the flow of a supplementary air to the afterburner, disposed in an exhaust system of an internal combustion engine, or a device for controlling the spark-plug ignition timing, in response to the difference between the temperature of the internal combustion engine and the ambient temperature around the engine for the purpose of reducing to an inappreciable value the amount of noxious unbur...

Mercury is purified with regard to iron, calcium and similar metallic impurities by contacting the mercury with "nascent" chlorine and with an aqueous phase capable of generating nascent chlorine. The contact step may be carried out, for example, by electrolyzing a chloride brine which is in contact with the mercury; or by washing the mercury with a mineral acid and the metal salt of an oxychloride acid. Impurity metal values are solubilized into the aqueous phase which is separated from the mer...