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Sludge treatment system and sludge treatment method

A sludge treatment and sludge technology, which is used in sludge treatment, biological sludge treatment, water/sludge/sewage treatment, etc.

Pending Publication Date: 2021-06-08
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The reason for the difference in the test results is not necessarily clear, but it is considered that the difference in the substances and mixtures contained in the sludge of the test subjects has an influence

Method used

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  • Sludge treatment system and sludge treatment method
  • Sludge treatment system and sludge treatment method
  • Sludge treatment system and sludge treatment method

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0027] Below, based on Figure 1 to Figure 3 Embodiment 1 will be described. figure 1 It is a schematic diagram which shows the sludge treatment system in Embodiment 1. The sludge treatment system 100 includes: a solubilization treatment tank 1 that dissolves the sludge 7 inside, that is, a sludge solubilization unit; and a solubilization treatment unit that performs solubilization treatment on the sludge 7 in the solubilization treatment tank 1 2. Viscosity measurement unit 3 that measures the viscosity of sludge in the solubilization treatment tank 1 and outputs the measurement result as a viscosity value μ; microorganism tank 4 that contains microorganisms inside; transports from the solubilization treatment tank 1 to the microorganism tank 4 The conveying unit 5 of the sludge 7; the control part 6 which controls the conveying unit 5.

[0028] The solubilization treatment tank 1 is connected to a sludge pipe 101 , and the sludge 7 is sent into the solubilization treatmen...

Embodiment approach 2

[0057] Second, based on Figure 4 Embodiment 2 will be described. Figure 4 It is a schematic diagram which shows the sludge treatment system in Embodiment 2. In the figure, the same reference numerals are assigned to the same constituent devices and members as those of the sludge treatment system and the sludge treatment method in Embodiment 1, and description thereof will be omitted unless otherwise required. In addition, the sludge treatment system of Embodiment 2 treats the excess sludge produced|generated in the biological treatment tank. Here, the microorganism tank 4 of Embodiment 1 is used as a biological treatment tank. Since the configuration on the upstream side of the microorganism tank 4 is the same as that of the first embodiment, illustration and description thereof will be omitted. In addition, using the microorganism tank 4 as a biological treatment tank is an example, and it is not limited to this.

[0058] The sludge treatment system 200 is equipped with...

Embodiment approach 3

[0082] Second, based on Figure 5 Embodiment 3 will be described. Figure 5 It is a schematic diagram which shows the sludge treatment system in Embodiment 3. In the figure, the same reference numerals are attached to the same constituent devices and members as those of the sludge treatment system and sludge treatment method in Embodiments 1 and 2, and description thereof will be omitted unless otherwise required. In addition, in the sludge treatment system of Embodiment 3, the excess sludge generated in the biological treatment tank is solubilized with ozone gas, and returned to the biological treatment tank again.

[0083] The sludge treatment system 300 has: a solubilization treatment tank 1; a biological treatment tank 29 that processes waste water 27 to generate treated water 28 containing sludge; and transfers the treated water 28 containing sludge in the biological treatment tank 29 to a The sludge transfer unit 26 of the melting treatment tank 1; the ozone generator ...

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Abstract

The invention relates to a sludge treatment system and sludge treatment. [Problem] To obtain a sludge treatment system and a sludge treatment method capable of appropriately controlling the resource consumption during solubilization treatment. The sludge treatment system (100) is provided with: a solubilization treatment tank (1) in which a solubilization treatment of sludge (7) is performed; a solubilization treatment unit (2) for performing solubilization treatment on the sludge (7) in the solubilization treatment tank (1); a viscosity measurement unit (3) that measures the viscosity of the sludge (7) and outputs the measurement result as a viscosity value [mu]; and a control unit (6) that, when the viscosity value [mu] becomes a predetermined value or is within a predetermined range, causes the solubilization treatment by the solubilization treatment stopping means (2), and causes the conveying means (5) to operate to convey the sludge (7) in the solubilization treatment tank (1) to the microorganism tank (4).

Description

technical field [0001] The application relates to a sludge treatment system and a sludge treatment method. Background technique [0002] In the activated sludge method for treating dissolved organic matter contained in sewage, etc., it is necessary to treat excess sludge generated during the treatment. Therefore, as a method of efficiently reducing the volume of a large amount of excess sludge, there is reformation of excess sludge by solubilization treatment. As specific examples of the solubilization treatment, heating treatments such as an ozone oxidation method, a hydrogen peroxide treatment method, an acid-alkali treatment method, a hyperthermic bacteria method, and a hydrothermal treatment method are known. Conventionally, the amount of suspended matter (SS), the amount of volatile suspended matter (VSS), and the like have been used as indicators for controlling the solubilization treatment. For example, in Patent Document 1, the ozone injection amount per g-VSS is d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/02C02F11/06
CPCC02F11/00C02F11/02C02F11/06Y02E50/30
Inventor 明田川恭平黒木洋志杉本谅平敷勇
Owner MITSUBISHI ELECTRIC CORP
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