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Sewage treatment intelligent management system

An intelligent management system and sewage treatment technology, applied in electrical program control, program control in sequence/logic controllers, etc., can solve problems such as inability to solve emission reduction, energy saving and consumption reduction effect, etc.

Inactive Publication Date: 2009-02-18
上海大地自动化系统工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose is to control the oxygen supply through various control methods. Since the DO value of dissolved oxygen in each stage of the treatment process is fixed, the main purpose is to save the oxygen supply, but the effect of energy saving and consumption reduction is very small, and it cannot be solved at all. emission reduction

Method used

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  • Sewage treatment intelligent management system
  • Sewage treatment intelligent management system
  • Sewage treatment intelligent management system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] As shown in Figure 1, an intelligent sewage treatment management system includes: a data acquisition device 1, a data processing device 2, a real-time calculation control device 3, a data storage device 4, a process mathematical model device 5 and an intelligent control device 6.

[0035] Data acquisition device 1 collects all operating parameters and process equipment operating conditions in the sewage treatment process, including raw water flow Q, temperature T, and raw water quality BOD5 / CODcr, pH, total nitrogen, total phosphorus, and sludge concentration MLSS And dissolved oxygen DO, ORP, sludge return ratio in the sewage treatment process, and BOD5 / CODcr, ammonia nitrogen Na, total phosphorus in the effluent, and process equipment, such as lift pumps, underwater mixers, blowers, return sludge pumps, and the remaining Operation status of sludge pump, etc.

[0036] The main data collected by the data acquisition device are: the analog input signal of 4 ~ 20mA is gen...

Embodiment

[0123] The daily treatment capacity of a city sewage treatment plant is 50.000m 3 / day, the treatment process is denitrification and phosphorus removal process, and its influent and effluent indicators

[0124] Influent BOD=150mg / L SS=200mg / L TN=35mg / L TP=4mg / L

[0125] Effluent BOD≤20mg / L SS≤20mg / L TN≤15mg / L TP≤1mg / L (Class B standard)

[0126] According to design calculation

[0127] 1. Mud age θ 13.8(d)

[0128] 2. Oxygen consumption O 2 1.14 (kg O 2 / kg BOD)

[0129] 3. Sludge load L S 0.08(kg BOD / kg MLSS.d)

[0130] 4. Return sludge concentration St 5.88(g / L)

[0131] 5. Sludge return ratio 104.17

[0132] 6. Aerobic pool volume V 0 28905M 3

[0133] 7. Anoxic tank volume V D 7221M 3

[0134] 8. Anaerobic tank volume V A 4721M 3

[0135] 9. Hydraulic retention time T 15(h)

[0136] 10. Hourly load 338(kg BOD / h)

[0137] 11. Amount of ni...

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Abstract

The invention discloses an intelligent management system for sewerage processing, which comprises: a data-collecting device, a data-processing device, a real-time control device, a data-storing device, a technology mathematical model device and an intelligent control device; the data-storing device can store the data, the real-time control device can execute real-time control and calculation, the calculated regulating quantity can control operating devices in real time through an output port, and the calculated value can be imported in the data-storing device. The technology mathematical model device can execute the technology optimizing and improving calculation according to the processed data, the calculated optimization operating value can be sent to the intelligent control device to execute intelligent control calculation, the optimization control value can be calculated through taking knowledge and experience out from the data-storing device, and can be controlled and adjusted in the device corresponding to the output port , and the control value can be sent to the data-storing device for storage.

Description

technical field [0001] The invention relates to an intelligent management system, in particular to an intelligent management system for sewage treatment which combines the improvement of the sewage treatment process with intelligent control. Background technique [0002] Sewage treatment is an emerging industry, and many theories of sewage treatment are still under development and need to be further improved. For urban sewage treatment, due to the indisputable technical and economic advantages of biochemical treatment technology in the construction and operation of urban sewage treatment plants, the vast majority of urban sewage treatment plants at home and abroad have adopted biochemical treatment technology, and biochemical treatment The treatment system becomes the core of the urban sewage treatment plant. [0003] Although biochemical treatment technology has been used in sewage treatment for a hundred years, its related basic theory has been gradually established in th...

Claims

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Application Information

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IPC IPC(8): G05B19/04
Inventor 金善徵贠小锋王善鼎
Owner 上海大地自动化系统工程有限公司
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