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Online measuring device and method for specific oxygen uptake rate (SOUR) of activated sludge in sewage treatment system

A sewage treatment system and activated sludge technology, which is applied in the direction of chemical reaction of materials for analysis, chemiluminescence/bioluminescence, etc., can solve the problem of inaccurate SOUR value of activated sludge

Active Publication Date: 2013-09-04
RENMIN UNIVERSITY OF CHINA
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Problems solved by technology

Therefore, the method described in this patent also has the above-mentioned problems, so the activated sludge SOUR value finally measured is also inaccurate

Method used

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  • Online measuring device and method for specific oxygen uptake rate (SOUR) of activated sludge in sewage treatment system
  • Online measuring device and method for specific oxygen uptake rate (SOUR) of activated sludge in sewage treatment system
  • Online measuring device and method for specific oxygen uptake rate (SOUR) of activated sludge in sewage treatment system

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Embodiment Construction

[0026] exist figure 1 Among them, the activated sludge specific oxygen consumption rate online measuring device according to the present invention includes: a pre-aeration tank 1; an oxygen consumption rate measuring system 2; a biomass detection system 3; a data acquisition card 4, a computer and a software program system 5; A water pump 6 and a second water pump 7; first to fifth electronically controlled valves 8, 9, 10, 11 and 12.

[0027] When the specific oxygen consumption rate measuring instrument starts to work, the water pump 6 pumps the mixed liquid in the aeration tank of the sewage treatment plant into the pre-aeration tank 1, and the pumping volume is 1L. In the pre-aeration tank, the dissolved oxygen concentration of the mixed liquid sample is increased to 6-8 mg / L by aeration, and then the aeration is stopped. The water pump 7 quantitatively pumps the aerated mixed solution into the oxygen consumption rate measurement system 2 and the active microbial biomass ...

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Abstract

The invention provides an online measuring device for specific oxygen uptake rate (SOUR) of activated sludge in a sewage treatment system. The online measuring device is characterized by comprising a pre-aeration unit, an SOUR metering unit, a biomass metering unit, and a data control and calculation unit, wherein the pre-aeration unit comprises a first electric control valve, a first water pump, a second water pump, a pre-aeration tank and an aeration system, wherein the SOUR metering unit comprises a second electric control valve, a third electric control valve, an airtight breathing chamber, a dissolved oxygen meter and an electromagnetic stirrer, the biomass metering unit comprises a fourth electric control valve, a fifth electric control valve and an active micro-biomass online detection system, and the data control and calculation unit comprises a data acquisition card, a computer and a software program system. According to the online measuring device, the total active micro-biomass in the activated sludge system is adopted for replacing mixed liquor suspended solids (MLSS) or mixed liquor volatile suspended solids (MLVSS) in a conventional SOUR calculation method so as to accurately measure the SOUR of the activated sludge.

Description

technical field [0001] The invention relates to an activated sludge specific oxygen consumption rate (SOUR) measuring system, in particular to an on-line measuring device and method for the activated sludge specific oxygen consumption rate in a sewage treatment system, belonging to the technical field of sewage treatment. [0002] Activated sludge specific oxygen consumption rate referred to as SOUR; [0003] Biological oxygen consumption referred to as OUR; [0004] The active microbial mass is referred to as M; [0005] Dissolved oxygen is referred to as DO; [0006] Activated sludge mixed liquid suspended solids concentration referred to as MLSS; [0007] The concentration of volatile suspended solids in the activated sludge mixed liquor is referred to as MLVSS. Background technique [0008] The activated sludge method is the most traditional and important method in the biological treatment of urban sewage. In the process of activated sludge treatment of sewage, acti...

Claims

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Application Information

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IPC IPC(8): G01N21/76
Inventor 王洪臣龙海涛齐鲁刘国华
Owner RENMIN UNIVERSITY OF CHINA
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