High-sludge activity energy-saving type aeration control system for SBR (Sequencing Batch Reactor Activated Sludge)

A control system, energy-saving technology, applied in water treatment parameter control, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve problems such as waste and excessive aeration energy, reduce energy consumption, shorten Effect of aeration time, shortening of operating cycle time

Inactive Publication Date: 2017-11-21
尚川(北京)水务有限公司
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  • Application Information

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Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides a high sludge activity energy-saving aeration control system applied to SBR to solve the problem of energy waste caused by excessive aeration in the process of sewage treatment in the existing SBR reaction tank

Method used

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  • High-sludge activity energy-saving type aeration control system for SBR (Sequencing Batch Reactor Activated Sludge)

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Embodiment 1

[0027] Such as figure 1 As shown, the present embodiment provides a high sludge activity and energy-saving aeration control system applied to SBR, including a raw water tank 1, an SBR reaction tank 4, a control device and an aeration device; the raw water tank 1 and the SBR A lift pump 2 is arranged between the reaction tanks 4, the water inlet of the lift pump 2 communicates with the bottom of the raw water tank 1, and the water outlet of the lift pump 2 communicates with the upper part of the SBR reaction tank 4; the aeration The device and the lift pump 2 are all electrically connected to the control device; the control device includes a PLC control unit and an oxygen consumption rate OUR measuring instrument 8, an oxygen transfer efficiency OTE measuring instrument 10 and an oxygen consumption rate measuring instrument 10 electrically connected to the PLC control unit. DO dissolved oxygen measuring instrument 7, the PLC control unit is electrically connected with the aerat...

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Abstract

The invention discloses a high-sludge activity energy-saving type aeration control system for SBR (Sequencing Batch Reactor Activated Sludge). The system comprises a raw water tank, an SBR reaction tank, a control device and an aeration device, wherein a lifting pump is arranged between the raw water tank and the SBR reaction tank; both the aeration device and the lifting pump are electrically connected with the control device; the control device comprises a PLC (Programmable Logic Controller) control unit as well as an oxygen uptake rate OUR tester, an oxygen transfer efficiency OTE tester and a DO (Dissolved Oxygen) tester which are electrically connected with the PLC control unit; the oxygen uptake rate OUR tester, the oxygen transfer efficiency OTE tester and the DO tester are all arranged inside the SBR reaction tank. Aeration characteristic points and sludge activity are judged according to variation situations of the DO, the OUR and the OTE, then the operation situations of the SBR reaction tank are adjusted, on the basis that pollutants are effectively decomposed, the sludge activity is improved, the oxygen transfer efficiency is improved, the operation cycle is shortened, the aeration intensity is alleviated, the aeration time is shortened, and thus the purpose of energy conservation is achieved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an aeration control system with high sludge activity and energy saving applied to SBR. Background technique [0002] Sewage treatment is for sustainable development, but high-energy-consuming processes do not meet the basic principles of sustainable development. At present, the aeration of sewage treatment is a large energy consumer, and there is an urgent need to reduce energy consumption. Most of the urban sewage treatment plants in my country are secondary treatment plants using the activated sludge method, and the energy consumption mainly comes from aeration, reflux (72%) and lifting (21%). More than 60% of the total energy consumption. Therefore, reducing aeration energy consumption is of great significance to the energy-saving operation of the entire sewage plant. [0003] The existing traditional activated sludge process is based on the full load (set water qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12
CPCC02F3/1278C02F2203/006C02F2209/005C02F2209/22Y02W10/10
Inventor 罗涛
Owner 尚川(北京)水务有限公司
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