Online detector for detecting total organic carbon (TOC) in sewage with ultraviolet spectrometry method

A technology of total organic carbon and ultraviolet rays, applied in the measurement of color/spectral characteristics, etc., can solve the problems of avoiding responsibility, high price, complex structure, etc., and achieve the effect of reducing measurement errors

Inactive Publication Date: 2011-05-04
CHANGCHUN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The above-mentioned products are all imported products. Although the detection methods are mature and the detection accuracy is high, there are problems such as complex structure and high price.
In terms of environmental protection in our country, some practical problems exist: some polluti

Method used

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  • Online detector for detecting total organic carbon (TOC) in sewage with ultraviolet spectrometry method
  • Online detector for detecting total organic carbon (TOC) in sewage with ultraviolet spectrometry method
  • Online detector for detecting total organic carbon (TOC) in sewage with ultraviolet spectrometry method

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Embodiment 1

[0043] Further introduce the total organic carbon detection device of the present invention below by embodiment, as figure 1 As shown, the total organic carbon detection device provided by Embodiment 1 of the present invention includes:

[0044] UV-transmissible sample pool 1 is used to hold the sewage sample to be tested;

[0045] The ultraviolet light source 2 is arranged above the sample pool and is used to emit ultraviolet light beams to the sample pool; the ultraviolet light source can be an ultraviolet light source emitting 200-400nm ultraviolet light beams, and specifically a deuterium ultraviolet lamp can be used as the ultraviolet light source.

[0046] The spectrometer 3 is arranged under the sample cell, and is used for spectroscopically processing the ultraviolet light beam transmitted through the sample cell;

[0047] The ultraviolet light intensity detector 4 is used to detect the light intensity of each wavelength beam of the ultraviolet light beam after spectr...

Embodiment 2

[0056] This embodiment is a further expansion of Embodiment 1. On the basis of the basic total organic carbon detection device provided in Embodiment 1, relevant peripherals are configured to adapt to real-time automatic detection.

[0057] Such as image 3 Shown, it is the structural representation of embodiment 2, comprises:

[0058] A flow tank carrying real-time flowing sewage to be tested;

[0059] The water storage tank is connected with the flowing water tank and the ultraviolet-transmissible sample pool, and is used for containing the sewage to be tested which is sampled continuously.

[0060] It can also include a pump (specifically, it can be a diaphragm pump), the water flow tank and the water storage tank can be connected with the inlet pipeline of the pump through their respective outlet branch pipelines, and the water flow tank, the water storage tank and the ultraviolet light can transmit The sample cell can be connected with the outlet pipeline of the pump th...

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Abstract

The invention provides a detector for detecting total organic carbon (TOC) in sewage, mainly comprising a sample pool capable of being transmitted by ultraviolet rays, a UV optical splitter and a data processor of the organic carbon. The detector is characterized in that UV can emit 240-450nm of UV beams, and a neon lamp is used as a UV light source; the optical splitter is a UV reflective blazed grating, and the light strength of the light beams at each wavelength is detected by a linear array UV CCD (Charged Coupled Device); and the TOC value is determined according to the relationship between the absorbance at the feature wavelength and the TOC content. As known from the scheme, the detector has low cost and good stability and is capable of fully realizing automation and accurately measuring the TOC value so as to comprehensively reflect the pollution degree of the organic matter in the water. Thus, the detector has important help and realistic significance for monitoring and measuring the sewage discharge and the water pollution on the ground surface.

Description

technical field [0001] The invention relates to a detector for total organic carbon in sewage, in particular to a TOC detector for on-line monitoring of sewage which can be irradiated and analyzed by ultraviolet rays in a large spectral range. Background technique [0002] So far, organic pollutants in water have continued unabated. Organic pollution is the main problem of water pollution. Our life is inseparable from water, so we pay more and more attention to the monitoring of water and sewage. Total organic carbon TOC (Total organic carbon) is the sum of the carbon content of organic matter in water. The main elements in organic matter are represented by the amount of carbon. TOC can fully reflect the pollution level of organic matter to water. [0003] Now the United States mainly uses the TOC index to detect the organic matter content in water (Federal Industrial Standard D-2579), and Japan also includes the TOC index in the Japanese Industrial Standard (JIS, K0102), an...

Claims

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Application Information

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IPC IPC(8): G01N21/33
Inventor 张宇郭沫然蔡红星谭勇高健赫夏腾宁成达张喜和
Owner CHANGCHUN UNIV OF SCI & TECH
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