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1587results about "Water/sewage treatment with mechanical oscillations" patented technology

Novel multi-technology synergetic catalysis advanced micro-bubble ozone oxidation tower

The invention belongs to a multi-technology synergetic catalysis advanced micro-bubble ozone oxidation tower mainly aiming at the treatment of refractory industrial wastewater. Influent (1) and O3 generated by an ozone generator (24) are injected into a water distribution cabin through a dissolved gas pump (5) and enter a micro-bubble release contact area (7) through a pore plate to release dissolved gas; Liquid which contains slag flows upwards and enters a floating slag separation area (8), liquid which contains no slag flows downwards and enters a gas-liquid separator (9), one part of effluent (10) is drained from a drain hole (11), and one part of the effluent (10) is refluxed to a dissolved gas pump intake pipe (12); an ultrasonic vibrator (13) and an ultraviolet light source (14) provide an ultrasonic and ultraviolet synergetic catalysis action; floating slag overflows to a collecting groove (15) and is drained through a drain hole (16); and a coagulant, powder activated carbon and hydrogen peroxide are added by adding systems (2, 3, 4) to provide a coagulation action and the synergetic catalysis action of PAC (powdered activated carbon) and H2O2. Tail gas is refluxed to the ozone generator through a drain hole (17), a one-way valve (18), gas suction tanks (19 and 20) and a dryer (23). The oxidation tower is compact in structure and has high treatment efficiency.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

Field-flow fractionation method and apparatus

An improved field-flow fractionation method and apparatus for the separation of sample species 28 contained in a carrier fluid, wherein a stream of the sample species-containing carrier fluid is forced through a flow channel 14 having a depletion wall 18, an accumulation wall 20, side walls, a channel inlet 10, and a channel outlet 34, by introducing the sample species-containing carrier fluid into the flow channel 14 through the channel inlet 10 and withdrawing the sample species-containing carrier fluid through the channel outlet 34, a field 32 is applied to the carrier fluid in the flow channel 14 to induce a driving force on the sample species 28 acting across the flow channel 14 from the depletion wall 18 towards the accumulation wall 20 and perpendicular to the orientation of the main axis of the flow channel 14, the sample species 28 are subjected to fractionation as they flow through the flow channel 14 and emerge as sample species fractions at the channel outlet 34, wherein at least one additional stream of sample species-depleted carrier fluid is introduced into the flow channel 14 through at least one orifice 12 and the relative flow rates of the different streams are adjusted such that the stream of sample species-containing carrier fluid is positioned adjacent to the accumulation wall 20 and the sample species-depleted carrier fluid is positioned between the depletion wall 18 and the sample species-containing carrier fluid, no mechanical barrier being provided inside the flow channel 14 between the orifice 12 and the channel inlet 10 for separating the stream of sample species-depleted carrier fluid introduced through the orifice 12 and the stream of sample species-containing carrier fluid introduced through the channel inlet 10.
Owner:POSTNOVA ANALYTICS
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