Abstract:
A sequencing batch apparatus being manually or automatically operated for treating a contaminated water is described. The present invention specifically relates to the apparatus comprising an inlet pipe, a batch reactor, a chemical feeder means, at least one mixing means, a coarse bubble distribution means, a fine bubble distribution means, a liquid discharge means, and sludge discharge means for required liquid treatment, and further alternatively comprising a gas moving means, a gas pipe, a flow meter, an enclosure and a gas purification means for air emission control upon demand. The present invention further relates to an apparatus system comprising means for recovering precious metal, controlling optimum pH in an acid range, reducing hexavalent chromium to trivalent chromium, controlling optimum pH in a base range, oxidizing cyanide, destroying phosphite, separating flocs, exchanging metals, adsorbing contaminants, neutralizing an effluent, and controlling gas emission. The treated effluent can be safely discharged into a receiving water. The waste sludges, ashes and spent adsorbents containing metals, PCB, and other toxic organics are safely disposed of by cementation or solidification.
Abstract:
An integrated reactor is capable of mixing, reacting, and/or sparging two or more fluids. The reactor is preferably formed of a porous element and a housing formed of at least two inlets and an outlet. A catalyst may be incorporated into the porous element.
Abstract:
A high rate multi-stage bubble separation process is developed for: (a) initially generating coarse gas bubbles with diameters greater than 80 microns in turbulent hydraulic condition to mix an influent water with chemicals, enzymes, microorganisms, or combinations thereof, to produce chemical flocs, biological flocs or both, and to strip volatile contaminants from water; (b) subsequently terminating coarse gas bubbles and generating extremely fine gas bubbles with diameters smaller than 80 microns in laminar hydraulic condition to float suspended, oily and surface-active contaminants together with said chemical flocs and said biological flocs from water, to settle heavy contaminants from water, and to produce a clarified effluent water, a floating scum, and a sludge; (c) terminating the fine gas bubbles and discharging the clarified effluent water; (d) discharging the floating scum and the sludge upon demand; and (e) optionally collecting and treating an emitted gas stream resulting from said coarse gas bubbles and said fine gas bubbles.
Abstract:
This invention relates to a new and novel method and apparatus for reacting nongaseous material with a gaseous reactant comprising introducing a first stream containing a nongaseous material into a reaction zone; simultaneously introducing a second stream containing a gaseous reactant into the reaction zone such that the gaseous reactant immediately contacts and reacts with the first stream thereby producing a gaseous product; forming a spiralling vortex within the reaction zone to cause substantial separation of gases, including the gaseous product, from the nongaseous material; forming and removing a third stream from the reaction zone containing the gaseous product which is substantially free of the nongaseous material before a major portion of the gaseous product can react with the nongaseous material; and forming and removing a fourth stream containing the nongaseous material from the reaction zone.
Abstract:
Among other things, hydrogen is released from water at a first location using energy from a first energy source; the released hydrogen is stored in a metal hydride slurry; and the metal hydride slurry is transported to a second location remote from the first location.
Abstract:
Among other things, hydrogen is released from water at a first location using energy from a first energy source; the released hydrogen is stored in a metal hydride slurry; and the metal hydride slurry is transported to a second location remote from the first location.
Abstract:
A process for the production of an olefin comprising partially combusting in a reaction zone a mixture of a hydrocabon and an oxygen-containing gas in the presence of a catalyst which is capable of supporting combustion beyond the fuel rich limit of flammability to produce the olefin. Prior the partial combustion, the mixture of the hydrocabon and the oxygen-containg gas is passed through a heat excahanger, and the heat exchanger provides a pressure drop.
Abstract:
A fluid contacting device including a bundle of notched and precontoured strips which are notched periodically at edges and shaped by giving proper orientation (twist) so that the liquid trickling down the strip flows and spreads on the contoured roughened surface simultaneously alternating back and forth on the two opposite sides of the strip and intermixing from one strip to adjoining ones through plurality of contact points achieved with haystack bundle like winding of alternately inclined strips around equipment axis to achieve intimate contact between trickling film and other phase traveling in the twisting channels.
Abstract:
A reactor produces a gas-in-liquid emulsion for providing increased interfacial contact area between the liquid and the gas for improved reaction of the gas with the liquid, or more rapid solution or reaction of a difficulty soluble or immiscible gas in or with a liquid. The reactor is suitable for a continuous or batch type process. Rotor and stator cylindrical members are mounted for rotation relative to one another and have opposing surfaces spaced to form an annular processing passage. The gap distance between the opposing surfaces and the relative rotation rate of the cylindrical members are such as to form a gas-in-liquid emulsion of the gas in the liquid. The liquid and gas pass through the processing passage, changing into the gas-in-liquid emulsion.
Abstract:
The process and the system are used for carrying out the quench-cooled, vapor-phase polymerization of olefin monomer in a horizontally disposed reactor vessel which comprises contacting olefin monomer, or a mixture of olefin monomers, with a polymerization catalyst system in the presence of hydrogen in the reactor vessel to form a polymer product. The improvement comprises introducing a titanium-containing catalyst component of the catalyst system into the top side of the reactor vessel at a point adjacent to the upstream end of the reactor vessel and introducing a cocatalyst plus modifer component of the catalyst system into the top side of the reactor vessel at a distance, downstream of the point of introduction of the titanium-containing catalyst component, which is equal to 25% of the inside diameter of the reactor vessel.