Autotrophic bacteria kinetic parameter measurement device and method

Abstract

The invention discloses an autotrophic bacteria kinetic parameter measurement device and an autotrophic bacteria kinetic parameter measurement method. The device comprises a reaction chamber and a sludge tank, wherein the sludge tank communicates with the top wall of the reaction chamber via an electric valve, and a water bath circulation system is arranged on the surrounding wall of the tank of the reaction chamber; an agitator which extends to the bottom of the tank of the reaction chamber is arranged along the top wall of the reaction chamber, and a pH meter, a dissolved oxygen meter and a level meter are respectively arranged in the reaction chamber; an aerating sand core which communicates with an aerating pump is arranged on the bottom of the reaction chamber; and the electric valve, the agitator, the pH meter, the dissolved oxygen meter and the level meter are respectively connected with a PLC (programmable logic controller) control box, and the PLC control box is respectively connected with the aerating pump and a computer. The method includes the following steps of: (a) aerobic endogenous respiration rate testing stage; (b) oxygen transport coefficient testing stage; and (c) nitration exogenous respiration rate testing stage. By correcting the concentration of saturated dissolved oxygen, recording data and drawing a curve in real time, fitting errors and evaluating fitting quality, the invention realizes the intelligentization of control and value analysis, and is easy to operate.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and relates to a device and a method for measuring kinetic parameters of autotrophic bacteria. Background technique [0002] In sewage treatment, microorganisms are used to degrade pollutants such as organic matter and ammonia nitrogen. During the process of pollutant degradation, microorganisms grow. With the in-depth research on microbial treatment of sewage, microbial kinetic models were introduced into water treatment, forming a set of activated sludge kinetic models including biological removal of organic matter, ammonia nitrogen, phosphorus and microbial autolysis. The mathematical model of activated sludge has become an indispensable and important content in the design and operation of sewage treatment plants. However, in actual application, the quantification of the kinetic parameters of microorganisms in different sewage plants is the premise of the accurate application of the model. As...

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Problems solved by technology

[0003] The object of the present invention is to provide a kind of autotrophic bacterium kinetic parameter measurement device and the method that utilizes this device to carry out the autotrophic bacterium kinetic parameter test, through the control calculation software, overcome the autotrophic bacterium kinetic parameter test time-consuming, difficult to operate Convenience problem, realizing relevant parameters can be obtained in a short time through simple operation

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