摘要:
The present invention has an object to provide a compact aggregation precipitation method and an apparatus therefor which prevent the outflow of flocs and do not deteriorate the turbidity elimination performance even in start-up early stages. As the means to accomplish such an object, the present invention provides a method of adding an inorganic flocculant and, optionally, an organic polymer flocculent to the water to be treated and agitating the resulting mixture to effect aggregation precipitation treatment which comprises introducing the agitated solution into a first chamber of a separation tank where flocs are allowed to grow to effect solid-liquid separation and, simultaneously, the separated water is discharged out of the separation tank.
摘要:
The present invention has an object to provide a compact aggregation precipitation method and an apparatus therefor which prevent the outflow of flocs and do not deteriorate the turbidity elimination performance even in start-up early stages. As the means to accomplish such an object, the present invention provides a method of adding an inorganic flocculant and, optionally, an organic polymer flocculent to the water to be treated and agitating the resulting mixture to effect aggregation precipitation treatment which comprises introducing the agitated solution into a first chamber of a separation tank where flocs are allowed to grow to effect solid-liquid separation and, simultaneously, the separated water is discharged out of the separation tank.
摘要:
A coagulation-sedimentation apparatus is designed to enable the apparatus to treat water at a higher rate. The coagulation-sedimentation apparatus includes a separation tank body 60 divided into an upper chamber 61 and a lower chamber 62 by a partition member 64. The tank body has a raw water inlet pipe 66 that introduces raw water into the upper chamber, and a water distributing passage that introduces a part of the water from the upper chamber to the lower chamber. The upper chamber has a first treated water outlet 76, and the lower chamber has a second treated water outlet 78. The flow velocity of upward flow of the water toward the first treated water outlet 76 in the upper chamber and the flow velocity of upward flow of the water toward the second treated water outlet 78 in the lower chamber can be controlled so that flocs in the upward flows can settle.
摘要:
A mounting structure including: an outer housing having a first locking portion; a ceiling including a lamp opening portion in a central portion thereof; an inner housing including: a first locking facing portion which is locked in the first locking portion of the outer housing; and a second locking portion on and directly attached to the inner housing; and a reinforcement having a second locking facing portion which is locked on the second locking portion of the inner housing. The ceiling is fixed between the outer housing and the inner housing by locking the first locking facing portion of the inner housing in the first locking portion of the outer housing via the lamp opening portion in the ceiling. A bracket portion shaped so as to follow a shape of an upper side of the ceiling is provided along an outer circumference of the inner housing.
摘要:
A disposable lancing device including: a housing; a spring member; a lancet having a skin puncture needle, the spring member and the lancet being housed within the housing such that a needle tip of the skin puncture needle is adapted to be projected out from the housing under urging of the lancet by the spring member to perform skin puncture procedure; and a protective cap having a needle passage hole and covering the needle tip of the skin puncture needle, the protective cap being adapted to separate from the skin puncture needle and rotate so that the needle passage hole of the protective cap is positioned on a path of projection of the skin puncture needle, and the skin puncture procedure is performed with the protective cap supported on the housing.
摘要:
An oxidation catalyst for use in the oxidation of a substrate with a molecular oxygen, comprising at least one member selected from the group consisting of a specific hydrazyl radical (such as 2,2-diphenyl-1-picrylhydrazyl) and a specific hydrazine compound (such as 2,2-diphenyl-1-picrylhydrazine). A method for producing a chemical compound, comprising contacting a substrate with a molecular oxygen in the presence of the above-mentioned oxidation catalyst.
摘要:
A method of coloring a surface of a zirconium-based metallic glass component that includes the step of imparting interference colors by carrying out an anodizing process using an alkaline solution to form a film having a thickness of 300 nm or less on the surface of the zirconium-based metallic glass component.
摘要:
A supported composite particle material comprises: a composite particle formed of an oxidized nickel and X (wherein X represents at least one of elements selected from the group consisting of nickel, palladium, platinum, ruthenium, gold, silver and copper); and a support on which the composite particle is supported, the supported composite particle material having a supported layer in which the composite particle is localized.
摘要:
Provided is a safety needle assembly for protecting a needle point, a safety type needle assembly having a curved portion, to which an erroneous piercing preventing mechanism is added, or a safety type Hoover needle assembly thereby to prevent the piercing accident. The safety needle assembly comprises a needle having a point at its leading end, a hub for holding the root end portion of the needle, and a leading end protecting portion. The safety needle assembly is characterized by further comprising a restricting portion for restricting the distance between the needle and the hub, in that the leading end protecting portion includes a mechanism for warping the needle point, when the leading end protecting portion moves the leading end of the needle to a projecting position, thereby to accommodate the needle point in the inner side of the leading end protecting portion, so that the leading end of the needle is protected.
摘要:
A catalog of images whose lightness has been changed in accordance with human vision is generated. For this purpose, a first image having reference shadow lightness, a second image having reference highlight lightness, a third image having desired lightness, a fourth image having lightness that is visually perceived to evenly divide the lightness between the first image and the third image, and a fifth image having lightness that is visually perceived to evenly divide the lightness between the third image and the second image are generated. The first to fifth images are included in a catalog image.