Sewage treatment control method and system for improving treatment scale in situ

A technology for sewage treatment and control methods, applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve problems such as seasonal sewage overflow pollution, and improve sewage treatment. Efficiency, increased sludge return concentration, and effect of rapid solid-liquid separation

Pending Publication Date: 2020-08-11
北京博泰至淳生物科技有限公司 +1
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, one of the purposes of the present invention is to provide a control method for sewage treatment that can in

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  • Sewage treatment control method and system for improving treatment scale in situ
  • Sewage treatment control method and system for improving treatment scale in situ
  • Sewage treatment control method and system for improving treatment scale in situ

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Embodiment Construction

[0058] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0059] figure 1 It shows a sewage treatment system that realizes in-situ increased treatment scale, including a pretreatment unit 1, an activated sludge treatment unit 2, a mixing unit 3, a secondary sedimentation unit 4 and an advanced treatment unit 5 connected in sequence along the water flow direction; The sewage treatment control system also includes a dilution unit 9, a dosing control unit 6, a sludge return unit 8 and an excess sludge treatment unit 7; the dosing control unit 6 is connected to the mixing unit 3, and the dilution unit 9 is connected to the dosing control unit 6 , The sludge return unit 8 is connected between the secondary precipitation unit 4 and the activated sludge treatment unit 2, and the excess sludge treatment unit 7 is connected with the secondary precipitation unit 4.

[0060] refer to figure 2 , the pretreatment unit 1 is th...

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Abstract

The invention discloses a sewage treatment control method and system for improving the treatment scale in situ, and belongs to the technical field of sewage treatment. The sewage treatment system comprises a pretreatment unit, an activated sludge treatment unit, a mixing unit, a secondary sedimentation unit and an advanced treatment unit which are sequentially communicated in the water flow direction. A dosing control unit is connected with the mixing unit; an online flow meter is used for detecting online inflow flow data of sewage in the pretreatment unit and sending the online inflow flow data to the dosing control unit; an online sludge concentration meter detects active sludge on-line concentration data MLSS of the active sludge unit and sends the active sludge on-line concentration data MLSS to the dosing control unit; and the dosing control unit determines the dosing amount of the medicament according to the online flow meter value and the online sludge concentration meter valueand adds the medicament to the mixing unit. The sewage treatment scale can be increased, and the problem of seasonal sewage overflow pollution can be solved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment control method and system for realizing in-situ increase of treatment scale. Background technique [0002] Sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering and other fields. Sewage treatment should be optimized and determined after a comprehensive technical and economic comparison based on the scale of treatment, water quality characteristics, environmental functions of the receiving water body, and local actual conditions and requirements. [0003] At present, the operation of sewage treatment plants in my country has seasonal problems. In winter, activated sludge is prone to sludge bulking, resulting in reduced performance of activated sludge, poor settling performance, increased mud level at the bottom of the secondary sedimenta...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F11/14
CPCC02F1/001C02F1/5236C02F1/54C02F1/56C02F3/30C02F9/00C02F11/14C02F2001/007
Inventor 汪翠萍潘建通郑淑文陈凯华秦梓耕张阳阳王战台朱琳琳赵婷婷
Owner 北京博泰至淳生物科技有限公司
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