An Equivalent Method for Determining the Dose of Ultraviolet Water Disinfection Using Ki-Kio3

Abstract

An equivalent method utilizing KI-KIO3 to measure ultraviolet water disinfection dosage, comprising the steps of: first preparing KI of a certain concentration and KIO3 mixed solution, then under parallel beam instrument, different ultraviolet doses are irradiated to the mixed solution respectively, and the solution is measured Absorbance at 352nm, thus obtaining the relationship curve between the effective dose of ultraviolet rays and absorbance, and then measuring the absorbance of the mixed solution of KI and KIO3 irradiated by the ultraviolet disinfection device, the effective dose of the corresponding ultraviolet disinfection device can be obtained from the curve, Compared with other methods, this method has the advantages of high stability of chemical substances used, accurate measurement, good reproducibility, short measurement period, and very simple operation. This method can determine the effective dose.

Description

technical field [0001] The invention belongs to the field of environmental pollution control and treatment, in particular to a method using KI-KIO 3 Equivalent Method for Determining Dose of Ultraviolet Water Disinfection. Background technique [0002] Ultraviolet water disinfection has gradually been widely used in the past 20 years, and it is one of the commonly used water disinfection methods at present. The advantages of ultraviolet disinfection are high sterilization efficiency, no need to add chemicals to water, no smell and taste of water, less disinfection by-products, and simple operation and management. [0003] The dose of ultraviolet rays is a key factor affecting the effect of ultraviolet disinfection. An appropriate effective dose of ultraviolet rays can effectively ensure the inactivation rate of microorganisms while reducing the power of the disinfection system and controlling the cost of the disinfection system. [0004] At present, the commonly used metho...

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Problems solved by technology

The model calculation does not consider the complexity of the ultraviolet disinfection system, and the key parameters required for the application of the model, such as the fouling and aging coefficient of the ultraviolet lamp, cannot be accurately determined, so there is a large deviation in the measurement results; the biological method can directly reflect the ultraviolet disinfection system. The inactivation effect on microorganisms, but the microbial cultivation period is long, the cultivation process is cumbersome, and the reproducibility is poor; the fluorescent microsphere method has high stability and can obtain the distribution of ultraviolet intensity in the ultraviolet disinfection equipment. The disadvantage is that fluorescent microspheres The cost of the law is high

[0005] There are some deficiencies in the above methods, so an efficient and economical method is needed to overcome the above deficiencies and efficiently and economically determine the effective dose of ultraviolet water disinfection

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