Determination method of biochemical characteristic map of microorganism carrier for sewage treatment

A microbial carrier and sewage treatment technology, which is applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of blindness in design selection, unclear sewage treatment effect, application scope, and biochemical properties of applicable water quality.

Active Publication Date: 2016-05-04
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual use of sewage treatment projects, when selecting biological carriers, it can only be selected according to the physical characteristics of biological carriers, different treatment processes, and different water quality and water quantities by referring to similar projects. The biochemical properties such as water quality are not clear, and the blindness of design selection is very large. Improper use of "infectious" is a common engineering problem

Method used

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  • Determination method of biochemical characteristic map of microorganism carrier for sewage treatment
  • Determination method of biochemical characteristic map of microorganism carrier for sewage treatment
  • Determination method of biochemical characteristic map of microorganism carrier for sewage treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The determination of the biochemical characteristic curve family of the carrier under the condition of artificial water distribution and water quality, the specific steps are as follows:

[0037] (1) film-hanging start

[0038] 10 groups of the same detection devices were assembled in parallel, filled with the biological carrier to be tested, and debugged. The activated sludge from the secondary sedimentation tank of a sewage treatment plant in Maanshan City was used as the inoculated sludge to start the film formation. The concentration of activated sludge in each group of reactors was 4000 mg. / L concentration was added. The influent is artificially prepared simulated domestic sewage, the ratio of COD:N:P is 100:5:1, and the concentration of the water distribution matrix for the start-up of film hanging is ①COD200mg / L, ammonia nitrogen 10mg / L, phosphorus 2mg / L, carbon source, nitrogen source, phosphorus The sources are respectively provided by glucose, ammonium sulfa...

Embodiment 2

[0062] The specific steps for the determination of the biochemical characteristic curve family of the carrier under the domestic sewage water quality conditions are as follows:

[0063] (1) film-hanging start

[0064] Take the activated sludge from the secondary sedimentation tank of a sewage treatment plant as the inoculated sludge to start the film formation, and the concentration of activated sludge in each group of reactors is added at a concentration of 4000mg / L. The influent water is the effluent from the grit chamber of the sewage treatment plant. Glucose, ammonium sulfate, and potassium dihydrogen phosphate are used to adjust the concentration of substrates such as COD, ammonia nitrogen, and phosphorus in the influent. If the effluent concentration of the grit chamber is high, it needs to be diluted before adjustment. Substrate concentration is ①COD100mg / L, ammonia nitrogen 25mg / L, phosphorus 1mg / L, DO, PH control is the same as that of Example 1, and the water tempera...

Embodiment 3

[0085] The determination of the carrier biochemical characteristic curve family under the water quality conditions of coking wastewater, the specific steps are as follows:

[0086] (1) film-hanging start

[0087] The biochemical treatment process activated sludge from a wastewater treatment station of a coking plant in Ma'anshan City was used as the inoculation sludge to start film formation, and the concentration of activated sludge in each group of reactors was added at a concentration of 4000 mg / L. The influent is the effluent from the anoxic pool of the wastewater treatment station of the coking plant. Glucose, ammonium sulfate, and potassium dihydrogen phosphate are used to adjust the concentration of substrates such as COD, ammonia nitrogen, and phosphorus in the influent water. If the effluent concentration of the anoxic pool is high, it needs to be diluted before adjustment. The concentration of starting water distribution matrix is ​​①COD1500mg / L, ammonia nitrogen 300mg...

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Abstract

The invention discloses a determination method of a biochemical characteristic map of a microorganism carrier for sewage treatment, and belongs to the field of sewage treatment technology. The method employs SBBR technology, biofilm culturing is synchronously carried out for three sets of parallel reactors or more, operation is stably carried out at the same initial influent substrate concentration, and mean values of effluent COD, ammonia nitrogen and other indices as well as biophase change are taken; influent substrate concentration is changed sequentially with repeat operation for detection; the influent substrate concentration is used as abscissa, the effluent COD and the ammonia nitrogen mean value are used as ordinates, an influent and effluent concentration change scatter diagram of the tested carrier is drafted, and a set of fitting curves is obtained; sewage types are changed, and a set of curves of other sewage types is obtained by repeating the operation; the biochemical characteristic map of the microorganism carrier for sewage treatment is formed by composing the curves on one coordinate system. The map provides a quantitive basis for carrier type selection and volume load calculation in sewage treatment engineering, and indicates a direction for development of novel carriers.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a method for measuring the biochemical property spectrum of microbial carriers in sewage treatment. Background technique [0002] The biological carrier is the medium for biofilm attachment, and at the same time as a relatively stationary phase, it provides a contact surface for the gas, liquid, and solid phases; the biological carrier is also a medium for cutting water flow and air bubbles, and promotes mass transfer between gas, liquid, and solid. The performance of biological carrier is related to the distribution of biophase in biofilm and the growth of microorganisms. Therefore, as the core of biochemical treatment technology, biological carrier directly affects and restricts the treatment effect, infrastructure investment, operation cycle and operation cost. [0003] At present, there are many types of biological carriers produced in China. Relevant testing methods...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/00G01N2033/0088
Inventor 张新喜卢学成胡小兵黄笑天钟梅英朱荣芳陈逸梅余超
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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