Advanced oxidation processes for waste water treatment: from laboratory-scale model water to on-site real waste water

2020 ◽  
pp. 1-13
Author(s):  
Julien G. Mahy ◽  
Cédric Wolfs ◽  
Christelle Vreuls ◽  
Stéphane Drot ◽  
Sophia Dircks ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Advanced Oxidation Processes ◽  
Waste Water Treatment ◽  
Advanced Oxidation ◽  
Laboratory Scale ◽  
Scale Model ◽  
Oxidation Processes ◽  
Model Water

The Application of Coagulation and Advanced Oxidation Processes Combined in the Treatment of Tar Water from Biomass Gasification

2015 ◽  
Vol 797 ◽  
pp. 369-376
Author(s):  
Łukasz Gościniak
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Advanced Oxidation Processes ◽  
Waste Water Treatment ◽  
Advanced Oxidation ◽  
Biomass Gasification ◽  
Process Conditions ◽  
Secondary Treatment ◽  
Oxidation Processes ◽  
Coagulation Process

Tar water acquired in the process of biomass gasification has been pre-treated in the process of the standard coagulation. The influence of the dose of chosen coagulants and pH of the running process on the effectiveness of waste water treatment has been specified. The most purified samples underwent a secondary treatment in the process of advanced oxidation with the Fenton's reagent, in order to evaluate its abilities and desirability of this method in the process of a coagulation. The analysis of the process' conditions influence on its effectiveness has been conducted. What is more, the evaluation of the validity of combining the coagulation process with the advanced oxidation in the treatment of tar water coming from the biomass gasification has been made.

Comparative Study of 2,4-Dichlorophenol Degradation With Different Advanced Oxidation Processes

2006 ◽  
Vol 129 (1) ◽  
pp. 60-67 ◽  
Author(s):  
B. Bayarri ◽  
O. González ◽  
M. I. Maldonado ◽  
J. Giménez ◽  
S. Esplugas
Keyword(s):  
Waste Water ◽  
Aqueous Solution ◽  
Comparative Study ◽  
Pilot Plant ◽  
Advanced Oxidation Processes ◽  
Scale Up ◽  
Advanced Oxidation ◽  
Laboratory Scale ◽  
Oxidation Processes ◽  
Alternative Processes

Chlorophenols (CPs) are toxic nonbiodegradable pollutants. In recent decades, several alternative processes for the treatment of these compounds have been investigated. Advanced Oxidation Processes (AOPs) are some of the most promising technologies. Among them, the UV-based AOPs [O3+Fe(II)+UV, photo-Fenton, UV+Fe(III), UV+H2O2, photocatalysis and photolysis] have previously been studied for the degradation of 2,4-dichlorophenol (DCP) in an aqueous solution at laboratory scale. In this paper, these techniques are compared and kinetic constants and pseudoquantum yields are estimated. O3−+Fe(II)+UV and photo-Fenton seem to be the most effective. To study scale-up of these processes from the laboratory to a pilot plant operating with sunlight, equivalent photocatalytic experiments were carried out in such installations. The results are promising and show trends similar to those obtained in the laboratory with lamps. The data obtained have been used to calculate some scale-up factors, which have been employed to make a rough estimation of the amount of waste water that can be treated by the solar AOPs studied. The results obtained are encouraging and prove the feasibility of this type of technology.

scholarly journals Application of Ozonation to Intensify Nitrification and Denitrification Processes/ Využití Ozonizace K Intenzifikaci Nitrifikačních A Denitrifikačních Procesů

2014 ◽  
Vol 60 (3) ◽  
pp. 37-45 ◽  
Author(s):  
Martina Drozdová ◽  
Radim Jablonka ◽  
Radmila Kučerová ◽  
Hana Kašáková
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Industrial Waste ◽  
Water Surface ◽  
Advanced Oxidation Processes ◽  
Inorganic Nitrogen ◽  
Waste Water Treatment ◽  
Waste Waters ◽  
Nitrogen And Phosphorus ◽  
Oxidation Processes

Abstract Nitrogen and phosphorus belong to most important biogenic macro elements and both are required for the growth of microorganisms. Sewage waste waters and industrial waste waters from nitrogen production are important sources of organic and inorganic nitrogen compounds in water. Surface water predominantly contains nitrogen in a form of ammonium cations (NH4 +). This knowledge could be used in waste water treatment. The paper deals with a potential application of ozonation in waste water treatment to treat waste water polluted with excessive amounts of organic compounds, primarily containing nitrogen and its subsequent co-application with advanced oxidation processes (AOPs).

Applications of advanced oxidation processes: present and future

2004 ◽  
Vol 49 (4) ◽  
pp. 227-233 ◽  
Author(s):  
H. Suty ◽  
C. De Traversay ◽  
M. Cost
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Industrial Waste ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Industrial Applications ◽  
Solid Catalyst ◽  
Fenton Reagent ◽  
Industrial Waste Water ◽  
Oxidation Processes

The use of advanced oxidation processes (AOPs) to remove pollutants in various water treatment applications has been the subject of study for around 30 years. Most of the available processes (Fenton reagent, O3 under basic conditions, O3/H2O2, O3/UV, O3/solid catalyst, H2O2/Mn+, H2O2/UV, photo-assisted Fenton, H2O2/solid catalyst, H2O2/NaClO, TiO2/UV etc.) have been investigated in depth and a considerable body of knowledge has been built up about the reactivity of many pollutants. Various industrial applications have been developed, including ones for ground remediation (TCE, PCE), the removal of pesticides from drinking water, the removal of formaldehyde and phenol from industrial waste water and a reduction in COD from industrial waste water. The development of such AOP applications has been stimulated by increasingly stringent regulations, the pollution of water resources through agricultural and industrial activities and the requirement that industry meet effluent discharge standards. Nevertheless, it is difficult to obtain an accurate picture of the use of AOPs and its exact position in the range of water treatment processes has not been determined to date. The purpose of this overview is to discuss those processes and provide an indication of future trends.

Advanced Oxidation Processes for Wastewater Remediation: Fundamental Concepts to Recent Advances

2021 ◽  
pp. 37-86
Keyword(s):  
Water Treatment ◽  
Organic Pollutants ◽  
Large Scale ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Oxidation Potential ◽  
Wastewater Remediation ◽  
Oxidation Processes ◽  
Sludge Disposal ◽  
Different Types

Industrialization and modernization in recent times have led to a water crisis across the world. Conventional methods of water treatment like physical, chemical and biological methods which comprise of many commonly used techniques like membrane separation, adsorption, chemical treatment etc. have been in use for many decades. However, problems like sludge disposal, high operating costs etc. have led to increased focus on Advanced Oxidation Processes (AOPs) as alternative treatment methods. AOPs basically involve reactions relying on the high oxidation potential of the hydroxyl (OH•) free radical. They have the potential to efficiently treat various toxic, organic pollutants and complete degradation of contaminants (mineralization) of emerging concern. Many different types of homogenous as well as heterogenous AOPs have been studied viz: UV/H2O2, Fenton, Photo-Fenton, Sonolysis, Photocatalysis etc. for treatment of a wide variety of organic pollutants. Different AOPs are suitable for different types of wastewater and hence proper selection of the right technique for a particular type of pollutant is required. The inherent advantages offered by AOPs like elimination of sludge disposal problems, operability under mild conditions, ability to harness sunlight, non selective nature (ability to degrade all organic and microbial contamination) etc. have made it one of the most actively researched areas in recent times for wastewater treatment. Despite the benefits and intense research, commercial applicability of AOPs as a practical technique for treating wastewater on a large scale is still far from satisfactory. Nevertheless, positive results in lab scale and pilot plant studies make them a promising water treatment technique for the future. In the present chapter, an attempt has been made to discuss all aspects of AOPs beginning with the fundamental concepts, classification, underlying mechanism, comparison, commercialization to the latest developments in AOPs.

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