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Organic waste water treatment apparatus, organic waste water treatment method, and control program for organic waste water treatment apparatus

A technology for organic wastewater treatment and water treatment, applied in water treatment parameter control, biological treatment adjustment methods, biological water/sewage treatment, etc., can solve labor and time-consuming problems

Active Publication Date: 2016-06-29
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is necessary to newly install an anaerobic and aerobic combined tank divided by the partition wall, so it takes labor and time to improve the equipment

Method used

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  • Organic waste water treatment apparatus, organic waste water treatment method, and control program for organic waste water treatment apparatus
  • Organic waste water treatment apparatus, organic waste water treatment method, and control program for organic waste water treatment apparatus
  • Organic waste water treatment apparatus, organic waste water treatment method, and control program for organic waste water treatment apparatus

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no. 1 Embodiment approach

[0025] figure 1 The shown organic wastewater treatment apparatus 1 of the present embodiment includes a first sedimentation tank 2 , a biological reaction tank 3 , and a final sedimentation tank 4 in this order from the upstream side.

[0026] The biological reaction tank 3 is a reaction vessel for purifying sewage by the decomposition action of microorganisms. An anaerobic treatment zone 11 , an adjustment zone 12 , and an aerobic treatment zone 13 are provided in the biological reaction tank 3 . The adjustment area 12 is provided between the anaerobic treatment area 11 and the aerobic treatment area 13 . Here, "arranged between" does not mean a spatial concept but means that the order of treatment in the adjustment zone 12 is between the anaerobic treatment zone 11 and the aerobic treatment zone 13 .

[0027] The biological reaction tank 3 has an inflow part into which the organic waste water before purification treatment flows and an outflow part through which the organic...

no. 2 Embodiment approach

[0114] figure 2 The organic wastewater treatment device 51 of this embodiment is shown in . for with figure 1 The same constituent elements of the shown organic wastewater treatment apparatus 1 are denoted by the same reference numerals, and part of the description thereof will be omitted.

[0115] exist figure 2 The biological reaction tank 3 of the organic wastewater treatment device 51 shown is provided with an anaerobic treatment area 11 , an adjustment area 12 and an aerobic treatment area 13 . The adjustment area 12 is arranged between the anaerobic treatment area 11 and the aerobic treatment area 13 .

[0116] In addition, the bioreactor 3 is provided with an aeration device 60 as an aeration means. The aeration device 60 includes a blower 21 , an air pipe 22 extending from the blower 21 , a flow control valve 23 provided on the air pipe 22 , branch pipes 24 branched from the air pipe 22 , and on-off valves provided on each branch pipe 24 . 65a-65b, and air diffu...

no. 3 Embodiment approach

[0147] image 3 The organic waste water treatment apparatus 81 of this embodiment is shown in FIG. for and figure 1 The same components of the shown organic wastewater treatment apparatus 1 are denoted by the same reference numerals, and a part of the description thereof is omitted.

[0148] image 3 The organic wastewater treatment plant 81 shown is the same as figure 1 The organic wastewater treatment apparatus 1 of the first embodiment shown is different in that ORP meters (oxidation-reduction potential meters) 82 and 83 are provided in the first region 12a and the second region 12b of the adjustment region 12, respectively. In the present embodiment, when the atmosphere in the adjustment region 12 is controlled, the opening degrees of the on-off valves 25b and 25c are adjusted based on the oxidation-reduction potential of the treated water measured by the ORP meters 82 and 83 . That is, the control unit 9 finely adjusts the opening degrees of the on-off valves 25b and ...

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Abstract

The organic waste water treatment apparatus according to the present embodiment comprises a biological reaction tank, an ammonia concentration-measuring device, a total nitrogen concentration-measuring device, a total phosphorus-measuring device, and a control unit. The biological reaction tank comprises an anaerobic treatment region, an adjustment region, and an aerobic treatment region, and the adjusting treatment region is between the anaerobic treatment region and the aerobic treatment region. The adjustment region is capable of switching to one or more atmospheres from among an anaerobic atmosphere, a micro-aerobic atmosphere and an aerobic atmosphere. The ammonia concentration-measuring device measures the ammonia concentration of the water being processed in the aerobic treatment region. The total nitrogen concentration-measuring device measures the total nitrogen concentration of treated water flowing out of the biological reaction tank. The total phosphorus concentration-measuring device measures the total phosphorus concentration of the treated water flowing out of the biological reaction tank. The control unit adjusts the range of the atmosphere in the adjustment region on the basis of the values measured by the ammonia concentration-measuring device, the total nitrogen concentration-measuring device and the total phosphorus concentration-measuring device.

Description

Technical field [0001] The technical solution of the present invention relates to an organic wastewater treatment device, an organic wastewater treatment method and a control program of the organic wastewater treatment device. Background technique [0002] In the past, the standard activated sludge method was used as the most representative process in sewage treatment plants that purified domestic wastewater. The standard activated sludge method is a method in which aerobic microorganisms are used to oxidize and decompose organic pollutants in the water in an aeration tank that uses a blower to supply air to the water. In this standard activated sludge process, organic matter is decomposed and removed. However, nitrogen and phosphorus, which are substances that cause eutrophication problems at the discharge destination, cannot be removed by the standard activated sludge method. Therefore, as methods for decomposing organic matter and removing nitrogen and phosphorus at the...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/22C02F3/30
CPCC02F3/006C02F3/308C02F2209/14C02F2209/16C02F2209/18Y02W10/10
Inventor 小原卓巳山中理时本宽幸榎木辰彦平冈由纪夫
Owner KK TOSHIBA
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