Abstract: Provided is a water treatment system which realizes reduction of the environmental load and energy saving. The system includes: an adsorption unit (10) provided with an adsorbent (11) of adsorbing a target in an aqueous solution which is supplied thereto; an separation tank (20) supplied with the target removed from the adsorbent (11) by a medium contacting thereto, water and the medium after contacting, and separating the medium from the mixture of the supplied water, medium and target; a circulation passage connecting the adsorption unit (10) with the separation tank (20), whereby a circulation unit circulates the medium between the adsorption unit (10) and the separation tank (20) via the passage; and an operation control unit 50 controlling a flow of the medium in accordance with a change in an amount of the water removed from the adsorbent (11) and supplied to the separation tank (20).

Abstract: A flocculation-magnetic separation is provided which reduces the usage amount of flocculation agents as well as the usage amount of magnetic powders and realizes an improvement in the quality of treated water.

Abstract: A magnetic separation apparatus, comprising: a separation tank to which wastewater containing flocculated magnetic flocs is supplied; a disk-shaped or a drum-shaped separator that adsorbs the magnetic flocs with magnetic force while being rotated, the separator being arranged in the separation tank; and a collection device that collects the magnetic flocs adsorbed by the separator, wherein the improvement comprises that a rotational direction of the separator in the wastewater in the separation tank is set to be the same as a flow direction of the wastewater flowing in the separation tank as well as a lower portion of the separator being under the wastewater in the separation tank.

Abstract: A wastewater treatment apparatus that obtains treated water by adding a flocculant and magnetic powder to wastewater accumulated in a tank to thereby generate flocculated magnetic flocs, and recovering the magnetic flocs by means of a magnetic force to thereby remove the magnetic flocs from the wastewater, comprising: a magnetic flocs treatment device which treats the recovered magnetic flocs and which comprises a high pressure pump and a magnetic separation portion; wherein the magnetic separation portion has a structure in which fluid piping is arranged at a magnetic field generating portion, and magnetic powder in the magnetic flocs is recovered by using the high pressure pump to pump the recovered magnetic flocs to the fluid piping of the magnetic separation portion, and causing the magnetic powder in the magnetic flocs to attach to the fluid piping by means of a magnetic force of the magnetic field generating portion.

Abstract: A wastewater treatment method in which magnetic flocs are formed by adding to wastewater an inorganic flocculant, magnetic particles, and a high molecular polymer as a polymeric flocculant, and the magnetic flocs are collected with magnetic force to thereby obtain treated water having the magnetic flocs removed from the wastewater, wherein the improvement comprises that the magnetic particles are added to the wastewater after adding the inorganic flocculant to the wastewater to flocculate suspended solids in the wastewater, after that or substantially at the same time as the magnetic particles are added, the high molecular polymer is added to the wastewater, and flocculates of the suspended solids and the magnetic particles are combined with each other with the high molecular polymer to thereby obtain the magnetic flocs.

Abstract: A magnetic separation apparatus comprising: a separation vessel into which waste water containing a coagulated magnetic floc is supplied; a drum separator that is provided in the separation vessel and adsorbs the magnetic floc with a magnetic force while being rotated; a scraper that is abutted against a surface of the separator and scrapes the magnetic floc adsorbed by the surface of the separator; a scraper guide that is connected to the scraper and discharges the magnetic floc scraped by the scraper; and a scraping brush that scrapes the magnetic floc scraped by the scraper from the scraper and guides the magnetic floc to the scraper guide, wherein a lower portion of the separator is submerged in the waste water in the separation vessel, a rotational direction of the separation vessel in the waste water is set to the same direction as a flow direction of the waste water flowing in the separator, and a rotational direction of the scraping brush is set to a direction opposite to the rotational direction of t

Abstract: A flocculation-magnetic separation is provided which reduces the usage amount of flocculation agents as well as the usage amount of magnetic powders and realizes an improvement in the quality of treated water.

Abstract: A magnetic separation apparatus comprising: a separation vessel into which waste water containing a coagulated magnetic floc is supplied; a drum separator that is provided in the separation vessel and adsorbs the magnetic floc with a magnetic force while being rotated; a scraper that is abutted against a surface of the separator and scrapes the magnetic floc adsorbed by the surface of the separator; a scraper guide that is connected to the scraper and discharges the magnetic floc scraped by the scraper; and a scraping brush that scrapes the magnetic floc scraped by the scraper from the scraper and guides the magnetic floc to the scraper guide, wherein a lower portion of the separator is submerged in the waste water in the separation vessel, a rotational direction of the separation vessel in the waste water is set to the same direction as a flow direction of the waste water flowing in the separation vessel, and a rotational direction of the scraping brush is set to a direction opposite to the rotational dir

Abstract: A wastewater treatment method in which magnetic flocs are formed by adding to wastewater an inorganic flocculant, magnetic particles, and a high molecular polymer as a polymeric flocculant, and the magnetic flocs are collected with magnetic force to thereby obtain treated water having the magnetic flocs removed from the wastewater, wherein the improvement comprises that the magnetic particles are added to the wastewater after adding the inorganic flocculant to the wastewater to flocculate suspended solids in the wastewater, after that or substantially at the same time as the magnetic particles are added, the high molecular polymer is added to the wastewater, and flocculates of the suspended solids and the magnetic particles are combined with each other with the high molecular polymer to thereby obtain the magnetic flocs.

Abstract: A wastewater treatment apparatus that obtains treated water by adding a flocculant and magnetic powder to wastewater accumulated in a tank to thereby generate flocculated magnetic flocs, and recovering the magnetic flocs by means of a magnetic force to thereby remove the magnetic flocs from the wastewater, comprising: a magnetic flocs treatment device which treats the recovered magnetic flocs and which comprises a high pressure pump and a magnetic separation portion; wherein the magnetic separation portion has a structure in which fluid piping is arranged at a magnetic field generating portion, and magnetic powder in the magnetic flocs is recovered by using the high pressure pump to pump the recovered magnetic flocs to the fluid piping of the magnetic separation portion, and causing the magnetic powder in the magnetic flocs to attach to the fluid piping by means of a magnetic force of the magnetic field generating portion.

Abstract: A magnetic separation apparatus, comprising: a separation tank to which wastewater containing flocculated magnetic flocs is supplied; a disk-shaped or a drum-shaped separator that adsorbs the magnetic flocs with magnetic force while being rotated, the separator being arranged in the separation tank; and a collection device that collects the magnetic flocs adsorbed by the separator, wherein the improvement comprises that a rotational direction of the separator in the wastewater in the separation tank is set to be the same as a flow direction of the wastewater flowing in the separation tank as well as a lower portion of the separator being under the wastewater in the separation tank.

Abstract: A view controller for controlling view is described on meta data and a view history (log) of a viewer recorded at the reception side is used to judge whether the condition of the view controller is satisfied. When the condition is satisfied, the view of the received content is permitted. Moreover, the view controller controls not only the view history (log) of the viewer stored before the content is received but also the view of another content during or after the content view. Thus, it is possible to perform view control to enforce the content right information and reflect the intention of the content creator.

Abstract: A reference picture being as a reference of the replacement area, the reference position of the replacement area and the size of the replacement area has been memorized. Moreover, a replacing LOGO picture has also been memorized. A two dimensional movement amount of a camera is detected by a rotary encoder set on the pan head of the camera, and the detected movement amount is outputted as a movement information. In the picture synthesis device, an address of the reference position of the replacement area in the present picture is calculated based on the movement information, and the replacement area is detected with this address as reference. Then, a key signal indicating a picture in which the present picture and the reference picture within the replacement area are identical or different, and an identical portion between the present picture and the reference picture is replaced with a LOGO picture corresponding to the foregoing identical portion out of the LOGO picture based on this key signal.

Abstract: Fluid containing organic substances, which has not processed yet, is fed to a plurality of cylinders, using a slurry pump. A free piston is included in each cylinder, the fluid which has not yet been processed is introduced into one of two chambers in the cylinder partitioned by the piston, and processed high-pressure fluid which has been processed is introduced into the other one of the two chamber in the cylinder. The piston pressurizes the fluid with which the cylinder has been filled up. A pressure holding valve is provided in a processed high-pressure fluid system to pressurize an organic substance processing system, and this pressure holding valve suppresses changes in the pressure in the processed high-pressure fluid system.