Online titration method for measuring proton variation rate in biological wastewater treatment and device thereof

A technology of biological treatment and change rate, which is applied in the direction of sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc., can solve the problems of unstable solenoid valve, pulse flow needs to be checked regularly, and test frequency is high, etc., to achieve The effect of high test frequency, high promotion and application value, and high precision

Inactive Publication Date: 2013-03-27
CHONGQING UNIV
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Problems solved by technology

This type of titration measuring instrument basically realizes automatic titration, has a high test frequency, and can reflect microbial processes, but it is also an offline measurement in essence. Before each measurement, the mixed solution in the bioreactor needs to be simulated from a sewage treatment plant or laboratory. In addition, due to the instability of the solenoid valve, the pulse flow needs to be checked regularly. Gernaey et al (1998) reported that it should be checked twice a day when using

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  • Online titration method for measuring proton variation rate in biological wastewater treatment and device thereof
  • Online titration method for measuring proton variation rate in biological wastewater treatment and device thereof
  • Online titration method for measuring proton variation rate in biological wastewater treatment and device thereof

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[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] see figure 1 , 2 , the online titration measurement device of the rate of change of protons in wastewater biological treatment of the present invention is mainly composed of a reaction chamber 6, an automatic drug dosing system, pH transmitters 15, 14 and a computer 16, wherein the reaction chamber 6 is a closed structure. A stirrer 7 is housed in the chamber 6, and the stirrer 7 is a stirring magnet, and the stirring magnet is driven to rotate by a magnetic stirrer 8. An inlet and an outlet are respectively provided at the bottom and upper part of the reaction chamber 6, and the inlet and outlet communicate with the outlets of the inlet measuring chamber 2 and the outlet measuring chamber 4 through pipes respectively. Inlet measuring chamber 2 has the same structure as outlet measuring chamber 4, see figure 2 , The inlet measuring chamber 2 ...

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Abstract

The invention discloses an online titration method for measuring proton variation rate (HVR) in biological wastewater treatment. The HVR in the biological treatment is obtained by measuring pH values of an inlet and an outlet of a reaction chamber by two pH electrodes and controlling titration based on pH1 and pH2. The method helps realizes continuous high-precision measurement of the HVR in the wastewater treatment and also realizes field online measurement of the HVR in an actual wastewater treatment system without sampling. The invention also discloses an online titration device for measuring the HVR in biological wastewater treatment, which is used for realizing the method.

Description

technical field [0001] The invention relates to an on-line titration measurement method and device for proton variation rate in wastewater biological treatment, which is used to measure the proton variation amount (Hydrogen ion Variation Amount, HVA) when activated sludge microorganisms degrade pollutants in wastewater in the wastewater biological treatment process And the change rate (Hydrogen ion VariationRate, HVR), which is applicable to the process control and operation management of urban sewage treatment plants, the characterization of wastewater components, and the laboratory research on the kinetics of wastewater biological treatment process, etc., belonging to the field of wastewater biological treatment technology. Background technique [0002] Biological treatment is considered to be the most important and most economical and effective method for treating urban sewage. It uses the physiological metabolic activities of microorganisms in activated sludge to remove p...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/26C02F3/12
CPCY02W10/10
Inventor 张代钧张欣卢培利张文阁
Owner CHONGQING UNIV
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