Topic
Diffuser (sewage)
About: Diffuser (sewage) is a research topic. Over the lifetime, 6487 publications have been published within this topic receiving 40404 citations.
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Patent•
07 Dec 1993
TL;DR: In this paper, the discharged water quality always stabilized irrespective of change in flow rate of raw water by immersing a membrane separator attracted by a suction pump in a reaction tank, arranging a diffuser below it, and also inserting a membrane separating in an overflow line.
Abstract: PURPOSE: To obtain the discharged water quality always stabilized irrespective of change in flow rate of raw water by immersing a membrane separator attracted by a suction pump in a reaction tank, arranging a diffuser below it, and also inserting a membrane separator in an overflow line CONSTITUTION: Waste water is allowed to flow from a waste water inflow port 8 into an aerator 1 equipped with a diffuser 7 at the lower part, where organic materials, etc, turning into BOD components and COD components and decomposed by decomposing force of active sludge After a suction pump 6 is operated to filter the treated water through a membrane module 4, it is sent to a disinfecting tank 2 At this time, when the waste water of the set quantity or above is allowed to flow into the tank 2 from the waste water inflow port 8 caused by any reason, the treated water is allowed to flow out from an overflow line 3 At this time, the treated water is allowed to flow out through a membrane module 5 being a membrane separator inserted in the overflow line In this way, the discharged water quality always stabilized irrespective of change in flow rate of waste water is obtained COPYRIGHT: (C)1995,JPO
17 citations
Patent•
02 Nov 1989
TL;DR: In this article, a tubular coarse bubble diffuser for aerating waste water is constructed of polyvinyl chloride or a similar plastic material and the diffuser body has a main section with flat side walls through which outlet ports are formed.
Abstract: A generally tubular coarse bubble diffuser for aerating waste water is constructed of polyvinyl chloride or a similar plastic material. The diffuser body has a main section with flat side walls through which outlet ports are formed. The opposite ends of the diffuser body are cylindrical and are connected with the main section by transition sections which avoid abrupt changes in the wall thickness or diffuser connector diameter. One end is solvent welded in a plastic Tee fitting and the other end receives a removable end cap. The flat walls provide efficient oxygen transfer and the cylindrical ends allow the use of a threaded end cap and a secure large diameter solvent weld connection to the Tee fitting which directs air to the diffuser.
17 citations
Patent•
11 Jan 1944
TL;DR: In this paper, an annular diffuser chamber about the periphery of the compressor impeller with diffuser vanes disposed was introduced. But the diffuser vane structure was not discussed.
Abstract: This invention relates to centrifugal compressors or blowers, and more particularly to improvements in the diffuser vane structure thereof. Centrifugal compressors generally are provided with an annular diffuser chamber about the periphery of the compressor impeller with diffuser vanes disposed...
17 citations
Patent•
30 Jul 1982
TL;DR: In this paper, a closed heat-insulated vessel with internal draining wall, a conical bottom, a cover having a ventilation opening, and an opening for the raw material, with a driving unit mounted on the cover with two driving speeds with different intensities with bladed agitator tip speeds in an over-all range of 3 to 25 m/sec.
Abstract: Apparatus for the extraction of fruit and vegetable pressings and plant raw materials in a closed system The extraction is effected by simultaneous mechanical and hydrodynamic effects on the materials, the fruit or plant mass being subjected to several extractions in two cyclically alternating modes of fountain-type and turbulent agitation with different intensities with bladed agitator tip speeds in an over-all range of 3 to 25 m/sec The apparatus has a closed heat-insulated vessel with internal draining wall, a conical bottom, a cover having a ventilation opening, and an opening for the raw material, with a driving unit mounted on the cover with two driving speeds The driving unit is a shaft on the lower end of which there is mounted an impeller, the shaft resting on a special bearing supported on a grid of blades rectifying the material flow, an elongated diffuser surrounding the impeller, the impeller together with a suction unit leading to the diffuser being fixed to the bottom of the vessel
17 citations
Patent•
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12 Jul 1996
TL;DR: In this article, a gas-liquid separator having an air jetting device for uniformly jetting air on air scrubbing washing and of high strength against air pressure by simple structure is provided.
Abstract: PROBLEM TO BE SOLVED: To provide a gas-liquid separator having an air jetting device for uniformly jetting air on air scrubbing washing and of high strength against air pressure by simple structure. SOLUTION: Below hollow fiber membrane elements 6 in a filter chamber 3, an air jetting device 24 for air scrubbing washing of the hollow fiber membrane elements 6 is disposed. The air jetting device 24 is formed into a hollow annular body whose upper surface is closed and also whose lower surface is opened, and an air diffuser of an air inflow pipe 16 connected to an air compressor 15 is disposed inside the air jetting device 24. And in the outer peripheral surface and the inner peripheral surface of the air jetting device 24, a plurality of small hole-shaped air jetting ports 17 are made at prescribed intervals respectively, and are set so that the positions at which the air jetting ports 17 are formed may coincide with positions of the centers of the membrane protecting pipes 11.
17 citations