Online detector for key course products of waste water recycling

Abstract

The invention relates to an online detector for key course products of waste water recycling, belonging to the field of photoelectric detection. The detector provided by the invention comprises an array light source module, an array exciting monochrome module, a circulating sample pool, an array emitting monochrome module, an array detection module and a data processing module, wherein the array light source module provides three types of exciting light signals for the detector; the array laser monochrome module converts the exciting light signals into monochrome exciting signals of 284nm, 360nm and 440nm; a water sample is led in the circulating sample pool, excited to generate fluorescence signals and led out, and the characteristic wavelengths of the fluorescence signals are respectively 360nm, 460nm and 526nm; the array emitting monochrome module converts the three fluorescence signals into monochrome fluorescence signals, and the central wavelengths of the monochrome fluorescence signals are respectively 360nm, 455nm and 532nm; the array detection module simultaneously converts the three monochrome fluorescence signals into analog signals; and the data processing module converts the three types of analog signals into digital signals and obtains the concentrations of tryptophan, coenzymes and riboflavin through analysis. The detector provided by the invention can simultaneously and directly be used for detecting the concentrations of the key course products of the waste water recycling in an online mode and has the advantages of simplicity in operation, good selectivity and low cost.

Description

technical field [0001] The invention relates to a fluorescence on-line detector for key products in the waste water resource treatment process, in particular to a fluorescence on-line detector equipped with an array type light source module, an array type excitation monochrome module, a flow sample pool, an array type emission monochrome module and an array type The utility model relates to a fluorescence online detection instrument of a detection module, which belongs to the field of photoelectric detection. Background technique [0002] Most of the wastewater from chemical industry, light industry and textile printing and dyeing industry has high concentration, poisonous, harmful, difficult to biochemical degradation, and complex components. Different wastewater also contains various biohazardous substances such as nitrobenzene, aniline, phenols, etc. , and the BOD of mixed wastewater 5 / COD cr Very low (<0.2), far less than the industry-recognized difficult biochemic...

AI Technical Summary

Problems solved by technology

[0007] The traditional detection method needs to be tested in the laboratory after sampling, which takes a long time to measure, consumes chemical reagents, and may cause secondary pollution

Fluorescence spectroscopy can effectively detect tryptophan, riboflavin and coenzymes in the process of anaerobic degradation of wastewater simultaneously, qualitatively and quantitatively. , The spectral analysis speed is slow and cannot be applied to online detection

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