JP2003302392A5 - - Google Patents

Claims (15)

  A coarse separation facility that has a mesh-like material for removing impurities, introduces a suspension of a plant facility, and discharges the suspension from which impurities are removed with the mesh-like material as a coarsely separated suspension; and Membrane separation equipment for introducing a crude separation suspension to separate the solid and liquid, separation liquid storage equipment for temporarily storing the separation liquid from the membrane separation equipment, and taking in the separation liquid stored in the separation liquid storage equipment A water quality measuring device for suspension, comprising a water quality measuring facility for measuring water.   A first chamber and a second chamber partitioned by a mesh-like material for removing impurities are formed, and the suspension is introduced into the first chamber so that the suspensions in both chambers flow with each other. Separation apparatus for discharging the first separation chamber from the first chamber, a membrane separation facility for introducing a solid separation suspension in the second chamber of the rough separation facility to perform solid-liquid separation, and a separation liquid from the membrane separation facility A suspension water quality measurement apparatus comprising: a separation liquid storage facility for temporarily storing water; and a water quality measurement facility for taking in the separation liquid stored in the separation liquid storage facility and measuring the water quality.   In any one of Claims 1, 2, The said mesh | network material of the said rough separation equipment is comprised by the mesh container, The outside of the container of the said mesh container is formed as a 1st chamber, and the inside of a container is formed as a 2nd chamber. Suspension water quality measuring device.   The mesh member of any one of claims 1 and 2, wherein the mesh material of the coarse separation facility is configured as a mesh plate, and the coarse separation facility is provided with support means that can attach and detach a plurality of the mesh plates. Suspension water quality measuring device.   3. The cleaning apparatus according to claim 1, wherein the membrane separation equipment is a cross-flow method using a flat membrane, and mechanically continuously cleans the membrane surface on the introduction side of the coarse separation suspension. The suspension water quality measuring device according to claim 1, further comprising a means for refluxing the roughly separated suspension after the separation operation into the second chamber of the roughly separated facility.   6. The membrane separation facility according to claim 5, wherein a plurality of filtration containers and suspension containers are alternately arranged through a flat membrane, and a cleaning jig that is rotationally interlocked in the suspension container is inserted into each membrane surface. Water quality measurement of the suspension characterized in that the roughly separated suspension is distributed and passed through each of the plurality of suspension containers while being washed, and solid-liquid separation is performed by suction means connected to the plurality of all filtration containers. apparatus.   7. The filtration device according to claim 6, wherein the suction means has a suction adjustment mechanism capable of adjusting a suction amount and / or operation / stop time, and the driving means has a drive adjustment mechanism capable of adjusting reverse rotation and / or rotation speed. An apparatus for measuring water quality of a suspension, comprising: operating an adjustment mechanism of the suction means or the driving means when a pressure value between a container and the suction means becomes a predetermined value or less.   7. The suction means according to claim 6, wherein the suction means can be rotated forward and backward, and when the pressure value between the filtration container and the suction means becomes a predetermined value or less, the rotation direction of the suction means is temporarily changed. Suspension water quality measuring device.   In Claim 6, provided with a water flow adjusting mechanism for adjusting the flow rate of the roughly separated suspension to each of the plurality of suspension containers, and when the pressure value for distributing the roughly separated suspension is equal to or higher than a predetermined value. The suspension water quality measuring device is characterized by sequentially changing suspension containers through which water is passed by the water flow adjusting mechanism.   The discharge mechanism for discharging the roughly separated suspension in each of the plurality of suspension containers, supply means for supplying fresh water or chemicals to the plurality of suspension containers, and the roughly separated suspensions according to claim 6. A pressure gauge is provided in front of the distribution or between the filtration container and the suction means, and when the pre-distribution pressure value measured by the pressure gauge is not less than a predetermined value or the suction pressure value of the suction means is not more than a predetermined value, Water quality of the suspension characterized by operating the discharge mechanism to discharge the coarsely separated suspension and then operating the supply means to clean the cleaning jig, membrane surface and membrane in each suspension container Measuring device.   The water level measuring means for measuring the separated liquid level of the separated liquid storage facility and / or the concentration measuring means for measuring the suspension concentration of the separated liquid, and the water level value or Determining means for determining a separation state of the membrane separation equipment based on a concentration value and a predetermined value set in advance, and when the judging means determines that the membrane separation is abnormal, the membrane separation equipment and the water quality measuring equipment are Suspension water quality measuring device characterized by stopping and displaying an alarm.   In any one of Claims 1-11, the imaging means which images the operation state of the said rough separation equipment and a membrane separation equipment, the imaging information of the said imaging means, the pressure of the said suction means, and the said rough separation suspension liquid A communication means for communicating the measured value of the pre-distribution pressure, the concentration of the separated liquid suspension in the separation liquid storage facility, and the measurement information of the water quality measurement facility, and an output display means for outputting and displaying the communication information of the communication means are provided. The suspension water quality measuring device, wherein normality / abnormality of the water quality measuring device is determined according to display contents of the output display means. A first chamber and a second chamber partitioned by a mesh-like material for removing impurities are formed, and the suspension is introduced into the first chamber so that the suspensions in both chambers flow with each other. Separation apparatus for discharging the first separation chamber from the first chamber, a membrane separation facility for introducing a solid separation suspension in the second chamber of the rough separation facility to perform solid-liquid separation, and a separation liquid from the membrane separation facility A separation liquid storage facility for temporarily storing water, a water quality measurement facility for taking in the separation liquid stored in the separation liquid storage facility and measuring the water quality, a water level measuring means for measuring the separation liquid level of the separation liquid storage facility, and / or Or a concentration measuring means for measuring the suspension concentration of the separation liquid, and a determination means for determining the separation state of the membrane separation equipment based on these water level value or concentration value and a predetermined value set in advance, Water quality measurement equipment is used in the flow of plants that treat urban sewage and industrial wastewater. Adjusting the amount of operation of the plant based on the measurement information of the water quality measurement facility when the membrane separation facility is determined to be normal by the determination means. Suspension water quality control device.   14. The means for directly measuring dissolved oxygen concentration, suspension concentration, oxidation-reduction potential, water temperature, and flow rate in the suspension according to claim 13, and measuring information of these direct measuring means and measurement of the water quality measuring equipment A water quality control device for a suspension, which adjusts an operation amount of the plant based on information.   15. A plant simulation means for predicting water quality using a model and diagnosing an operation amount is provided, and final processing of the plant is performed based on measurement information of the simulation means, the direct measurement means, and the water quality measurement equipment. A suspension water quality control device comprising a driving support means for calculating and outputting an operation amount for maintaining a predetermined value of the water quality of the liquid.