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Method for realizing short-cut nitrification and denitrification through online monitoring and controlling SBR (Selective Beacon Radar) aeration duration on basis of HPR (High Performance Routing)

A short-range nitrification, monitoring and control technology, used in chemical analysis by titration, aerobic and anaerobic process treatment, etc.

Inactive Publication Date: 2011-01-19
CHONGQING UNIV
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Problems solved by technology

Up to now, there is no report on using HPR as a real-time monitoring signal to control aeration to achieve short-range nitrification and denitrification

Method used

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  • Method for realizing short-cut nitrification and denitrification through online monitoring and controlling SBR (Selective Beacon Radar) aeration duration on basis of HPR (High Performance Routing)
  • Method for realizing short-cut nitrification and denitrification through online monitoring and controlling SBR (Selective Beacon Radar) aeration duration on basis of HPR (High Performance Routing)
  • Method for realizing short-cut nitrification and denitrification through online monitoring and controlling SBR (Selective Beacon Radar) aeration duration on basis of HPR (High Performance Routing)

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Embodiment 1

[0020] Example 1

[0021] (1) First, connect the automatic titration measuring instrument 5 with the SBR to form an SBR experimental operating device system with a monitoring system, such as figure 1 . The SBR is divided into inner and outer chambers in the form of concentric circles. The inner chamber 1 is a reactor equipped with an aeration device 2 and a stirring device 3. The outer circular chamber 4 has a water inlet and an outlet at the bottom and top. Outside the water outlet, the rest are sealed, and the submersible pump is used to continuously pump the water in the constant temperature water bath outside the device into the chamber through the bottom water inlet, and flow back to the constant temperature water bath through the top outlet to form a closed loop to maintain constant temperature; automatic titration measuring instrument 5 is an online titration measuring device for proton change rate in wastewater biological treatment disclosed in patent application No. ...

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Abstract

The invention discloses a method for realizing short-cut nitrification and denitrification through online monitoring and controlling SBR (Selective Beacon Radar) aeration duration on basis of HPR (High Performance Routing), comprising the steps that: an automatic titration admeasuring apparatus is connected with an SBR to monitor the HPR in a reactor in real time; meanwhile, a computer compares the HPR at the current moment and the HPR before the time Delta t, and discontinuously pushes ahead along with the real-time measurement of the HPR, and gives a command to control an aeration device to stop the aeration when the condition of the Delta t judging method is satisfied, wherein the Delta t judging method is described as follows: a fixed value m is set, when HPR (t-Delta t)-HPR (t) is greater than or equal to m, the stop condition of the aeration is satisfied and the aeration is stopped at the moment t; the aeration duration is controlled in each period of the SBR in real time and the aeration is stopped in time; after the operation for a plurality of periods, an SBR sewage treatment system realizes the short-cut nitrification and denitrification biological nitrogen removal. The invention provides a novel method for realizing the short-cut nitrification and denitrification biological nitrogen removal, and can be used for the dynamic research of the nitrification and denitrification biological nitrogen removal process.

Description

technical field [0001] The invention relates to the technical field of sewage treatment for process monitoring and control of urban sewage treatment plants, in particular to a method for realizing short-range nitrification and denitrification based on hydrogen ion change rate (HPR) on-line monitoring and control of SBR aeration over time, which is used to realize short-range biological Nitrogen removal process. Background technique [0002] Compared with other methods, the short-cut nitrification and denitrification of sewage biological treatment is recognized as an economical, effective and most promising denitrification method. The traditional biological denitrification method first oxidizes ammonia nitrogen into nitrite and nitric acid in sequence under the action of two types of microbial ammonia oxidizing bacteria (AOBs) and nitrite oxidizing bacteria (NOBs) in the nitrification process, using oxygen as an electron acceptor. In the process of denitrification, the organ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30G01N31/16
Inventor 张代钧张欣卢培利肖芃颖
Owner CHONGQING UNIV
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