Photocatalytic Processes for Water Treatment

2021 ◽  
pp. 1-14
Author(s):  
Martin V. Appleby ◽  
Dylan Pritchard ◽  
Julia A. Weinstein
Keyword(s):  
Water Treatment ◽  
Photocatalytic Processes

Solar Photocatalytic Detoxification and Disinfection of Water: Recent Overview

2006 ◽  
Vol 129 (1) ◽  
pp. 4-15 ◽  
Author(s):  
Julián Blanco-Galvez ◽  
Pilar Fernández-Ibáñez ◽  
Sixto Malato-Rodríguez
Keyword(s):  
Water Treatment ◽  
Research And Development ◽  
Water Disinfection ◽  
Water Contaminants ◽  
Toxic Compounds ◽  
Solar Photocatalysis ◽  
Experimental Systems ◽  
Solar Reactors ◽  
Photocatalytic Processes

During the last few years, there has been a plethora of research and development in the area of solar photocatalysis (TiO2 and photo-Fenton). This overview, of the most recent papers on the use of sunlight to produce the O∙H, comments on those most relevant to the development of the technology and summarizes most of the recent research related to the degradation of water contaminants, and how solar photocatalysis (coupled with biotreatment) could significantly contribute to the treatment of very persistent toxic compounds. Various solar reactors for photocatalytic water treatment based mainly on nonconcentrating collectors developed during the last few years are also described in detail. This review also reports the use of the photocatalytic processes (TiO2) to inactivate microorganisms present in water, placing special emphasis on those applications that make use of sunlight. Work on water disinfection mechanisms in the last decade is summarized in the last part of this overview, with attention to some experimental systems developed to optimize this disinfection technology.

Wavelength dependence of the efficiency of photocatalytic processes for water treatment

2018 ◽  
Vol 221 ◽  
pp. 258-265 ◽  
Author(s):  
Miguel Martín-Sómer ◽  
Beatriz Vega ◽  
Cristina Pablos ◽  
Rafael van Grieken ◽  
Javier Marugán
Keyword(s):  
Water Treatment ◽  
Wavelength Dependence ◽  
Photocatalytic Processes

scholarly journals Photocatalysis: Oxidative Processes in Water Treatment

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Roman V. Prihod'ko ◽  
Nely M. Soboleva
Keyword(s):  
Water Treatment ◽  
Heterogeneous Systems ◽  
Promising Direction ◽  
Decomposition Processes ◽  
Oxidation Of Organic Compounds ◽  
Treatment Technologies ◽  
Oxidative Processes ◽  
Photocatalytic Processes ◽  
Complete Mineralization ◽  
Destructive Oxidation

The efficiency of various homogeneous and heterogeneous systems photocatalytic processes destructive oxidation of organic compounds of different classes is considered. It is shown that photocatalytic methods can significantly increase the speed and depth (up to complete mineralization) of decomposition processes of toxicants. The use of photocatalysis (PC) in the creation of low-power water treatment technologies is a promising direction in addressing environmental problems of the hydrosphere.

To the issue of water treatment by hydrocyclone on the systems of the combined irrigation

2020 ◽  
Vol 0 (2) ◽  
pp. 21-25
Author(s):  
Nikolay Dubenok ◽  
Andrey Novikov ◽  
Sergei Borodychev ◽  
Maria Lamskova
Keyword(s):  
Water Treatment ◽  
Organic Compounds ◽  
Irrigation Water ◽  
Irrigation System ◽  
Petroleum Products ◽  
Cylindrical Part ◽  
Agricultural Landscapes ◽  
Treatment Unit ◽  
Drain Pipe ◽  
Irrigation Network

At the stage of water treatment for irrigation systems, the efficiency capture coarse and fine mechanical impurities, as well as oil products and organic compounds affects the reliability of the equipment of the irrigation network and the safety of energy exchange processes in irrigated agricultural landscapes. The violation of work irrigation system can cause disruptions in irrigation schedules of agricultural crops, crop shortages, degradation phenomena on the soil and ecological tension. For the combined irrigation system, a water treatment unit has been developed, representing a hydrocyclone apparatus with a pipe filter in the case. For the capacity of 250 m3/h the main geometrical dimensions of hydrocyclone have been calculated. To organize the capture petroleum products and organic compounds, it has been proposed a modernization of a hydrocyclone unit, consisting in dividing the cylindrical part of the apparatus into two section. The first is section is for input irrigation water, the second one is for additional drainage of clarified irrigation water after sorption purification by the filter, placed on the disk and installed coaxially with the drain pipe and the pipe filter.

Simple improvements for emergency batch water treatment

Waterlines ◽  
2007 ◽  
Vol 26 (1) ◽  
pp. 17-19 ◽  
Author(s):  
Caetano Dorea
Keyword(s):  
Water Treatment
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