Preliminary Water Purification from Surfactants and Organic Compounds through Ozone Oxidation, Intensified by Electrical Impulses

2019 ◽  
Author(s):  
Hussam Ghanem ◽  
Volodymyr Kravchenko ◽  
Vladislav Makedon ◽  
Oleksii Shulha ◽  
Suprun Oleksandr
Keyword(s):  
Organic Compounds ◽  
Water Purification ◽  
Ozone Oxidation ◽  
Electrical Impulses

scholarly journals Instrumentation of the combined processes in water treatment technology

2020 ◽  
Vol 16 (5) ◽  
pp. 55-62
Author(s):  
V. V. Borodychev ◽  
A. E. Novikov ◽  
M. I. Lamskova ◽  
M. I. Filimonov
Keyword(s):  
Water Treatment ◽  
Organic Compounds ◽  
Water Purification ◽  
Irrigation Water ◽  
Plant Cover ◽  
Oil Products ◽  
Morphological Properties ◽  
Combined Processes ◽  
Drain Pipe ◽  
Standard Design

An increase in the volume of industrial effluents, ship accidents, oil breakthroughs at drilling rigs lead to a deterioration in the quality indicators of water in open water sources, including in terms of the content of organic compounds and oil products. The water used for irrigation of agricultural crops, according to most indicators, must meet the water quality requirements for household and drinking purposes. Thus, the total content of oil products in the irrigation water should not exceed 0.1 mg / l. The use of water with the MPC excess leads to significant changes in the morphological properties of the soil, reduces the biological productivity and phytomass of the plant cover. Therefore, the issue of improving machines and devices used in water treatment technologies to increase their reliability and efficiency is one of the topical areas of the research. The aim of the study is to develop a hydrocyclone complex cleaning apparatus, which implements combined processes of capturing both coarse and finely dispersed impurities. Unlike the standard design, the hydrocyclone is supplemented with a filter element installed on the drain pipe, which provides additional water purification from fine mechanical impurities, and a sorption filter designed to remove oil products and other floating organic compounds from water. The proposed hydrocyclone unit provides a comprehensive purification of irrigation water from various types of impurities, due to the combined processes of centrifugal separation and sorption filtration. It eliminates the multistage process of water purification, and regeneration of the sorption filter by the action of centrifugal forces or pressure does not require the use of special regenerating solutions, which increases the manufacturability and environmental friendliness of the water treatment process.

A Research on Purification of Oily Wastewater with TiO2 Photocatalysts Supported by Zeolite Particles

2014 ◽  
Vol 953-954 ◽  
pp. 1017-1021
Author(s):  
Zhen Peng ◽  
Li Zhang ◽  
Chun Sheng Wang ◽  
Ke Fu Yao
Keyword(s):  
Photocatalytic Degradation ◽  
Environmental Protection ◽  
Organic Compounds ◽  
Water Purification ◽  
Industrial Wastewater ◽  
Degradation Process ◽  
Light Radiation ◽  
Oily Wastewater ◽  
Mechanical Stirring ◽  
Oil Concentration

It is well-known that TiO2is an environmental benign photocatalyst which can be used to decompose harmful organic compounds. Recently, many studies are concentrated on the purification of industrial wastewater due to the requirement of environmental protection. In present study, TiO2nanomaterials supported by fine zeolite particles have been used as the photocatalyst to purify the oily wastewater. It has been found that the oil concentration in the modulated water can be reduced significantly and rapidly under the action of photocatalytic degradation and the ultraviolet light radiation. After 80 minutes, oil concentration in the modulated water can be reduced by more than 80%. The results suggest that TiO2nanomaterials supported by fine zeolite particles are effective material for purification of oily wastewater. In addition, the present results show that the efficiency of water purification can be significantly increased by use of mechanical stirring during the photocatalytic degradation process.

Effects of organic compounds and recycling on ozone absorption in a portable water purification unit

2008 ◽  
Vol 7 (1) ◽  
pp. 1-8
Author(s):  
P. X. Yao ◽  
F. B. Hendrawan ◽  
H. T. Bi ◽  
J. H. Wang ◽  
J. Fu
Keyword(s):  
Organic Compounds ◽  
Water Purification ◽  
Ozone Absorption ◽  
Purification Unit

scholarly journals Ferric sludge derived from the process of water purification as an efficient catalyst and/or support for the removal of volatile organic compounds

Chemosphere ◽  
2019 ◽  
Vol 219 ◽  
pp. 286-295 ◽  
Author(s):  
Rut Sanchis ◽  
Ana Dejoz ◽  
Isabel Vázquez ◽  
Enrique Vilarrasa-García ◽  
José Jiménez-Jiménez ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Water Purification ◽  
Efficient Catalyst ◽  
Volatile Organic

Nasal Effects of a Mixture of Volatile Organic Compounds and Their Ozone Oxidation Products

2005 ◽  
Vol 47 (11) ◽  
pp. 1182-1189 ◽  
Author(s):  
Robert J. Laumbach ◽  
Nancy Fiedler ◽  
Carol R. Gardner ◽  
Debra L. Laskin ◽  
Zhi-Hua Fan ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Oxidation Products ◽  
Ozone Oxidation ◽  
Volatile Organic

Water purification: oil–water separation by nanotechnology and environmental concerns

2017 ◽  
Vol 4 (3) ◽  
pp. 514-525 ◽  
Author(s):  
Chee Huei Lee ◽  
Bishnu Tiwari ◽  
Dongyan Zhang ◽  
Yoke Khin Yap
Keyword(s):  
Organic Compounds ◽  
Organic Pollutants ◽  
Water Purification ◽  
Water Contamination ◽  
Oil Spills ◽  
Environmental Concerns ◽  
Water Separation ◽  
Synthetic Organic Compounds ◽  
Oil Water Separation ◽  
Oil Water

Organic pollutants from synthetic organic compounds (SOCs) and oil spills have led to significant water contamination. This article review the progress of oil–water separation using nanotechnology and the concern of water contamination by nanomaterials.

scholarly journals Purification of Liquid Radioactive Waste from Surfactants and Organic Compounds

2019 ◽  
pp. 62-67
Author(s):  
H. Ghanem ◽  
V. Gerlyga ◽  
V. Kravchenko ◽  
V. Makedon ◽  
A. Shulga
Keyword(s):  
Radioactive Waste ◽  
Organic Compounds ◽  
Nuclear Power ◽  
Power Plants ◽  
Ethylenediaminetetraacetic Acid ◽  
Liquid Radioactive Waste ◽  
Lauryl Sulfate ◽  
Model Solutions ◽  
Cleaning Methods ◽  
Electrical Impulses

During the operation of a nuclear power plant, a significant amount of liquid radioactive waste (LRW) is formed and accumulated, its recycling has one of the first priorities. One of the sources of liquid radioactive waste is drain water, which consists of surface-active substances (SA) and organic compounds (OC) of various natures. With this waste composition, the operation of the evaporator is significantly complicated. Thus, recycling of LRW will be simplified after purification from SA and OC. The paper discusses the theoretical aspects of oxidative-cavitation and electrohydrodischarge water purification from organic matter. A schematic circuit of experimental stands of combined cleaning methods was developed and presented. Studies were performed on model solutions of sodium lauryl sulfate (LS) (NaC12H25SO4) and ethylenediaminetetraacetic acid (EDTA) (C10H16N2O8). LS is chosen because it is the most common SA, which is present in the composition of various detergent and decontamination mixtures. The use of EDTA is due to its application in technological processes at nuclear power plants and the presence of liquid radioactive waste in the composition. The destruction of the OS occurs as a result of ozone oxidation, which is constantly splashing through the solution, and amplifies under the action of electrical impulses or ultrasonic (US) cavitation. The work identifies the patterns of reducing concentrations of model solutions, depending on the method of processing, pH-environment and duration of the process. It was found that the destruction of SA and OC occurred better when ozone was combined with US cavitation or electrical discharge, at high pH. The highest performance purification of solutions is as follows: use of electro-discharge and ozone (рН = 6.2) leads to about 71 % collapses, (рН = 10) ~ 61 % OC collapses; use of US cavitation and ozone (рН = 10) ~ 83.3 % SA collapses.

Photocatalytic Inactivation of Different Bacteria and Bacteriophages in Drinking Water at Different TiO2 Concentration With or Without Exposure to O2

1998 ◽  
Vol 3 (2) ◽  
Author(s):  
R. Armon ◽  
N. Narkis ◽  
I. Neeman
Keyword(s):  
Drinking Water ◽  
Titanium Dioxide ◽  
Photocatalytic Degradation ◽  
Organic Compounds ◽  
Water Purification ◽  
Photocatalytic Inactivation ◽  
Black Light

AbstractDuring the last decade the use of titanium dioxide has been the focus of water purification studies for photocatalytic degradation of organic compounds. However, the possible use of this technology for water disinfec­tion has been essentially unexplored. In our study U.V. black light (365 nm) at 5.5 mW cm

scholarly journals Modeling approaches to predict removal of trace organic compounds by ozone oxidation in potable reuse applications

2015 ◽  
Vol 1 (5) ◽  
pp. 699-708 ◽  
Author(s):  
Minkyu Park ◽  
Tarun Anumol ◽  
Shane A. Snyder
Keyword(s):  
Climate Change ◽  
Organic Compounds ◽  
Global Climate Change ◽  
Water Scarcity ◽  
Municipal Wastewater ◽  
Global Climate ◽  
Trace Organic Compounds ◽  
Ozone Oxidation ◽  
Potable Reuse ◽  
Trace Organic

Realized and potential threats of water scarcity due in part to global climate change have increased the interest in potable reuse of municipal wastewater.

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