Rotating biological contactor biofilm formation thickness measurement method

Abstract

The invention discloses a rotating biological contactor biofilm formation thickness measurement method. The method comprises steps: the running frequency of the rotating biological contactor is set tobe a measurement frequency, and the rotating biological contactor runs according to the measurement frequency; the power consumption average value when the rotating biological contactor runs according to the measurement frequency is measured; according to the measured power consumption average value when the rotating biological contactor runs according to the measurement frequency, based on a corresponding relationship between predetermined power consumption power and a biofilm formation thickness under the measurement frequency, the biofilm formation thickness of the rotating biological contactor is calculated and obtained. The method can perform real-time automatic measurement, the measurement speed is quick, and after interval time, the measurement can be completed in two minutes; themeasurement value is accurate and is extremely close to the actual comparison result; investment of purchase of one-time equipment does not exist, later maintenance is not needed, manual participationis not needed, and the measurement effects and the economic performance of the method reach the international leading level.

Description

technical field [0001] The invention relates to the field of biological turntables for sewage treatment, in particular to a method for measuring the thickness of a film on a biological turntable. Background technique [0002] When the biological turntable is used to treat sewage, the thickness of the hanging film of the biological turntable is a key indicator to determine the biochemical performance of the biological turntable. In the past, it could only be measured roughly and intermittently by visual inspection and sampling. Whether it is the accuracy, precision and repeatability of the measurement and the measurement speed, it cannot meet the actual needs. At the same time, there is no measurement of the film thickness of the biological turntable, which brings troubles to production and operation control, resulting in the inability to timely and accurately control the rotation speed of the biological turntable, resulting in poor processing performance and energy waste. ...

AI Technical Summary

Problems solved by technology

Both the accuracy, precision and repeatability of the measurement and the measurement speed cannot meet the actual needs

At the same time, there is no measurement of the film thickness of the biological turntable, which brings troubles to production and operation control, resulting in the inability to timely and accurately control the rotation speed of the biological turntable, resulting in poor processing performance and energy waste

[0003] At present, the definition of the film thickness of the biological turntable is a new subject, because the film thickness is relatively thin, the humidity is high, unstable, the mechanical strength is low, the manufacturing error of the disk is large, and the thickness deviation of the water inlet and outlet is large. , the water content slowly changes during the rotation process, etc., it is impossible to directly measure the thickness of the hanging film of the biological turntable.