Energy-saving MBR (membrane bioreactor) sewage treatment system

A sewage treatment system and sewage technology, applied in the field of energy-saving MBR sewage treatment system, can solve problems such as hidden dangers of equipment, unstable flow, frequent changes of frequency conversion control signals, etc., and achieve the effect of reducing energy consumption

Active Publication Date: 2016-07-06
ZHEJIANG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, there is still room for improvement in the energy-saving performance of fans and pumps, and the sewage flow parameters used as the basis for the control strategy cannot accurately and comprehensively represent the working status of the sewage treatment system
Especially in the existing MBR sewage treatment system, most of the control of the material transfer pump and the aeration fan i

Method used

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  • Energy-saving MBR (membrane bioreactor) sewage treatment system
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  • Energy-saving MBR (membrane bioreactor) sewage treatment system

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Embodiment Construction

[0060] The specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0061] Such as figure 1 and figure 2 as shown,

[0062] An energy-saving MBR sewage treatment system, including a grid channel 1, a regulating tank 2, a pretreatment tank 3, an MBR treatment tank 4 with a built-in membrane bioreactor, and a cleaning tank 14 connected in sequence, wherein:

[0063] An aeration device is arranged in the pretreatment tank 3 and the MBR treatment tank 4, and the aeration device shares a fan 10;

[0064] A first liquid level sensor 11 and a first water pump 5 for transferring sewage to the forward treatment tank are provided in the regulating tank 2;

[0065] A second liquid level sensor 12 and a second water pump 6 for transferring sewage to the MBR treatment tank 4 are arranged in the pretreatment tank 3;

[0066] The third liquid level sensor 13 is provided in the MBR treatment tank 4, and the water outlet of the...

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Abstract

The invention discloses an energy-saving MBR (membrane bioreactor) sewage treatment system. The system comprises a regulating tank, a pretreatment tank and a MBR treatment tank with a built-in MBR, which sequentially communicate with each other, wherein an aeration device is respectively arranged in the pretreatment tank and the MBR treatment tank, and is matched with a fan; a first liquid level sensor and a first water pump for transferring sewage to the pretreatment tank are arranged in the regulating tank; a second liquid level sensor and a second water pump for transferring sewage to the MBR treatment tank are arranged in the pretreatment tank; a third liquid level sensor is arranged in the MBR treatment tank; an water outlet of the MBR treatment tank is connected with a third water pump; the first water pump is controlled by composite signals of the first liquid level sensor and the second liquid level sensor; the second water pump and the fans are controlled by composite signals of the second liquid level sensor and the third liquid level sensor; and the third water pump is controlled by the third liquid level sensor. Different power modes are set corresponding to different liquid levels of the fans and water pumps, thereby obviously enhancing the energy-saving effect.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an energy-saving MBR sewage treatment system. Background technique [0002] Membrane bioreactor (MBR) technology is a kind of membrane sewage treatment technology. In recent years, MBR technology has been more and more widely used, but its energy consumption is still relatively high, and later maintenance and management are also a big problem. To some extent, its application is limited. [0003] The Chinese patent document with the publication number CN104609678A discloses an intelligent sewage treatment system. A pressure transmitter connected to an automatic control system is installed on the water production pipe. The automatic control system is operated by the pressure transmitter or according to the intelligent sewage treatment The running time of the system can automatically control the switch of the water inlet valve, water production valve, backwash valve, sludge discharg...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/12
CPCC02F3/1268C02F3/30C02F9/00C02F2209/005Y02W10/10
Inventor 林峰陶卓
Owner ZHEJIANG UNIV
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