Regularity of Water Treatment Processes in Facilities with Non-Immersed Vacuum Radiation Sources

IF 0.5 4区 化学 Q4 CHEMISTRY, ANALYTICAL
O. O. Samsoni-Todorov, I. A. Vyhovska, V. O. Yaremenko, I. M. Kosyhina
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引用次数: 0

Abstract

The development of new light sources (excimer, xenon, etc.) has enabled the use of vacuum radiation for the disinfection of natural and waste household and industrial water. Many papers are devoted to the modeling of photocatalytic oxidation systems, but they insufficiently highlight the effect of ultraviolet radiation on the processes occurring in the reactor when water structures in the surface water microlayer are activated. For this reason, the development of a model of calculating the effective radiation and energy effect parameters as a function from the absorbance of a treated liquid and the size of a reflector for surface irradiating water treatment systems is relevant. Just the vacuum ultraviolet quantity is a crucial factor in the synthesis of hydroxyl and peroxyl radicals immediately in water. In this paper, theoretical models and algorithms are proposed for the calculation of photocatalytic water treatment reactors with non-immersed radiation sources in the optimal UV radiation utilization regime. The applied oxidizers are known reagents, such as hydrogen peroxide, ozone, etc. Among all the reagents, ozone has the highest oxidation potential in water treatment. The possibilities of water treatment under the cumulative effect of photocatalytic ozone and UV radiation with the use of corresponding excimer lamps have been determined. For the system of irradiation with non-immersed light sources, it seems most promising to use photocatalytic ozone formed from oxygen under the influence of UV light radiation with wavelengths of 100–200 nm.

非浸入式真空辐射源设施水处理过程的规律性
新光源(准分子、氙气等)的发展使得真空辐射能够用于自然和废弃的生活和工业用水的消毒。许多论文致力于光催化氧化系统的建模,但它们没有充分强调紫外线辐射对反应器中表层水微层中的水结构被激活时发生的过程的影响。因此,对于表面辐照水处理系统,建立一个计算有效辐射和能量效应参数的模型是相关的,该模型是处理液体的吸光度和反射器尺寸的函数。真空紫外线的量是直接在水中合成羟基和过氧自由基的关键因素。本文提出了非浸没辐射源光催化水处理反应器在最佳紫外辐射利用工况下的计算理论模型和算法。所使用的氧化剂是已知的试剂,如过氧化氢、臭氧等。在所有试剂中,臭氧在水处理中具有最高的氧化电位。确定了在光催化臭氧和紫外线辐射的累积效应下,使用相应的准分子灯处理水的可能性。对于非浸没光源照射系统,在波长为100 - 200nm的紫外光辐射作用下,利用氧形成的光催化臭氧是最有前途的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Water Chemistry and Technology
Journal of Water Chemistry and Technology CHEMISTRY, APPLIED-CHEMISTRY, ANALYTICAL
自引率
0.00%
发文量
51
审稿时长
>12 weeks
期刊介绍: Journal of Water Chemistry and Technology focuses on water and wastewater treatment, water pollution monitoring, water purification, and similar topics. The journal publishes original scientific theoretical and experimental articles in the following sections: new developments in the science of water; theoretical principles of water treatment and technology; physical chemistry of water treatment processes; analytical water chemistry; analysis of natural and waste waters; water treatment technology and demineralization of water; biological methods of water treatment; and also solicited critical reviews summarizing the latest findings. The journal welcomes manuscripts from all countries in the English or Ukrainian language. All manuscripts are peer-reviewed.
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