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Organic wastewater treatment device, organic wastewater treatment method, and control program for organic wastewater treatment device

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: 2018-06-01
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 wastewater treatment device, organic wastewater treatment method, and control program for organic wastewater treatment device
  • Organic wastewater treatment device, organic wastewater treatment method, and control program for organic wastewater treatment device
  • Organic wastewater treatment device, organic wastewater treatment method, and control program for organic wastewater treatment device

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no. 1 Embodiment approach

[0025] figure 1 The shown organic wastewater treatment device 1 of this 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 container for purifying sewage by utilizing the decomposition action of microorganisms. An anaerobic treatment area 11 , an adjustment area 12 and an aerobic treatment area 13 are provided in the biological reaction tank 3 . The adjustment area 12 is arranged between the anaerobic treatment area 11 and the aerobic treatment area 13 . Here, “disposed between” does not refer to a spatial concept but means that the order of treatments in the adjustment area 12 is between the anaerobic treatment area 11 and the aerobic treatment area 13 .

[0027] The biological reaction tank 3 has an inflow portion through which organic wastewater before purification treatment flows in, and an outflow portion through whi...

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 wastewater treatment device 81 of this embodiment is shown in . for with figure 1 The same constituent elements of the organic wastewater treatment apparatus 1 shown are assigned the same reference numerals, and a part of the description thereof is omitted.

[0148] image 3 The shown organic waste water treatment device 81 and figure 1 The organic wastewater treatment device 1 of the first embodiment shown is different in that ORP meters (oxidation-reduction potentiometers) 82 and 83 are provided in the first region 12 a and the second region 12 b of the adjustment region 12 , respectively. In the present embodiment, when controlling the atmosphere in the adjustment area 12 , the opening degrees of the on-off valves 25 b and 25 c 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 opening and closing valves 25 b ...

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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 invention relates to an organic waste water treatment device, a treatment method for the organic waste water and a control program for the organic waste water treatment device. Background technique [0002] Conventionally, the standard activated sludge method has been used as the most representative process in sewage treatment plants that purify domestic wastewater. The standard activated sludge method is a method in which organic pollutants in water are oxidatively decomposed by aerobic microorganisms in an aeration tank in which air is supplied to water by a blower. In this standard activated sludge process, organic matter is decomposed and removed. However, nitrogen and phosphorus, which are the causative substances of the eutrophication problem at the discharge destination, cannot be removed by the standard activated sludge method. Therefore, as a method for removing nitrogen and phosphorus while decomposing organic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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