Determination of water treatment parameters based on absorbance and fluorescence

A technology for determining parameters and absorbance. It is used in water treatment parameter control, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. It can solve the problem of unaffordable installation and maintenance costs.

Active Publication Date: 2017-09-08
HORIBA INSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, on-line TOC meters can easily go out of calibration, such as on-line DBP meters (gas chromatographs)
Most water treatment plants cannot afford to install and maintain these devices

Method used

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  • Determination of water treatment parameters based on absorbance and fluorescence
  • Determination of water treatment parameters based on absorbance and fluorescence
  • Determination of water treatment parameters based on absorbance and fluorescence

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Embodiment Construction

[0022]Various representative embodiments of systems and methods according to the present disclosure are described in detail. It should be understood, however, that the representative embodiments are exemplary only, and that systems and methods according to the present disclosure may be embodied in various and alternative forms. The figures are not necessarily to scale and some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. Simplified flowchart or block diagrams may be provided to illustrate the operation of representative embodiments of systems or methods. Those of ordinary skill in the art will appreciate that this order of steps or processes may not be required for a particular application, that some steps may be omi...

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Abstract

A computer-implemented method for determining a water treatment parameter includes receiving, by a computer, measurements of a fluorescence emission spectrum of a water sample including a first peak emission wavelength and at least a second peak emission wavelength, emitted in response to an excitation wavelength, receiving, by the computer, an absorbance measurement obtained at the excitation wavelength of the water sample, determining, using the computer, a ratio of the measurements at either the second peak emission wavelength, or a sum of measurements at a plurality of peak emission wavelengths including at least the first peak emission wavelength and the second peak emission wavelength, to the first peak emission wavelength, and calculating, using the computer, a value for the water treatment parameter based on a combination of at least the ratio and the absorbance measurement.

Description

technical field [0001] The present disclosure relates to methods for indirect determination of parameters (e.g. biological oxygen demand (BOD), chemical oxygen demand (COD), total organic carbon (TOC) , trihalomethane formation potential (THMFP), etc.) method. Background technique [0002] Water treatment plants, including those treating surface water sources, are generally subject to various government requirements for the effluent distributed from the plant and for intermediate by-products that may be produced during treatment. In the United States, the Environmental Protection Agency (EPA) requires water treatment plants to use a coagulation process to reduce total organic carbon (TOC) concentrations before sanitizing finished water with halogenated / chlorinated disinfectants. [0003] Although various tools or instruments have been developed for monitoring TOC, on-line monitoring of TOC alone cannot provide the necessary information about the aromatization performance of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64G01N21/31
CPCG01N21/31G01N21/64C02F1/52C02F2209/008C02F2209/02C02F2209/06C02F2209/11C02F2209/20G01N21/274G01N2021/6421G01N2021/6484G01N2021/6491G01N2201/1211G01J3/36G01J3/42G01J3/4406C02F1/008G01N33/1826G01N21/645G01N33/1806G01N33/18C02F5/02C02F2209/08G01N2021/6493G01N21/33C02F1/004C02F2001/007C02F2209/07C02F2209/21G01N2021/6482
Inventor 亚当·马修·吉尔摩
Owner HORIBA INSTR
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