Removal of antimicrobial resistance determinants from wastewater: a risk perspective on conventional and emerging technologies

Moura, Leonardo de; Picão, Renata C.

doi:10.1016/b978-0-323-85160-2.00023-8

Cited by 9 publications

(5 citation statements)

References 184 publications

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“…The influential variables measured for the factorial design were the catalyst dose (100, 350, and 600 mg. L -1 TiO 2 ) and the pH (3, 6, and 9). These factors were considered since, when TiO 2 has been Taking into account that photocatalysis is carried out after combining the catalyst and UV radiation to accelerate the chemical transformation of pollutants (Moura and Picão, 2022), the accumulated energy was regarded as a blocking variable in values of 20, 40, and 60 kJ.L -1 for each experiment involving the TiO 2 /pH combination. Finally, a system was assembled which consisted of a multimeter (Uni-T UT71C)…”

Section: Methodsmentioning

confidence: 99%

Leachate Treatment via TiO2/UV Heterogeneous Photocatalysis: A Multiple Polynomial Regression Model

Becerra Moreno,

Machuca-Martínez,

Maturana

et al. 2023

Ing. Inv.

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Advanced oxidation processes such as TiO2/UV heterogeneous photocatalysis are suitable treatment methods for wastewater with high pollutant loads such as landfill leachates. Optimizing the variables that influence the process is a fundamental aspect. However, in this regard, experimental conditions are limited in terms of resources and time, which is why modeling allows obtaining a general understanding of the phenomenon from a set of experimental data. This work sought to model the photocatalytic process via multivariate polynomial regression, considering variables such as the catalyst concentration, the pH level, and the accumulated energy concerning the percentage of degradation in terms of dissolved organic carbon (DOC). The implemented fitting method resulted in a third-degree polynomial with an R2 of 0,8652, concluding that the model and its conclusions are valid. Moreover, with greater degrees, the model curve overfitted, even with better R2. DOC abatement showed a negative correlation with pH and the catalyst dose, while an opposite trend was observed for the accumulated energy. The model predictions allow inferring that, at low catalyst doses and medium and high pH levels, it is possible to find maximum degradations at low cumulative energies.

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Section: Methodsmentioning

confidence: 99%

Leachate Treatment via TiO2/UV Heterogeneous Photocatalysis: A Multiple Polynomial Regression Model

Becerra Moreno,

Machuca-Martínez,

Maturana

et al. 2023

Ing. Inv.

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“…The next process where ECPs are used is photocatalysis. Photocatalysis represents a process of generation of oxidative species because of the interaction between irradiation flux and the surface of the material (Moura & Picão, 2022). Because of its straightforward design, stability, minimal installation costs, and complete transformation of impurities into, mainly, harmless byproducts, heterogenous photocatalysis has seen a fast growth process in recent years.…”

Section: Introductionmentioning

confidence: 99%

Insights Into the Application of Polyaniline-Based Composites in Environmental Engineering

et al. 2023

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Environmental management demands innovative techniques for its protection and treatment. The essential agreement of the modern world is to overcome every issue in a sustainable way. The two major financial problems in this area are water pollution and material corrosion. Persistent, organic compounds such as pesticides have devastating effects on the water ecosystem. This problem can be solved by applying advanced treatment processes (ATPs) like membrane separation and photocatalysis. Additionally, the corrosion of metal materials needs to be prevented to preserve natural resources and reduce environmental concerns. Therefore, researchers are trying to develop tunable, multifunctional materials with broad applications. Employed materials in these operations must fulfill high criteria, like durability, stability, and chemical and optical activity, to make specified processes efficient and viable. Electroconductive polymers (ECPs) can meet the aforementioned standards. The most used ECP is polyaniline (PANI), due to its catalytic and electrochemical performances. These two properties are beneficial for both water purification and anticorrosion applications. The objectives of the paper are to represent various PANI-based composites utilized in the removal of different classes of pesticides during wastewater treatment by adsorption or photocatalytic degradation. Further corrosion inhibition, utilizing PANI-based inhibitors, will be discussed as well.

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“…This is because when the water is mixed with chlorine compound, it forms a reaction called chlorination. 11 Chlorination is the most common method for disinfecting secondary treated wastewater before final disposal in rivers, lakes, or oceans. The predominant use of chlorine in disinfection is a well-known technique with a broad spectrum of germicidal activity and a low-cost.…”

Section: Introductionmentioning

confidence: 99%

Effects of storage conditions on superoxidised water

Sen,

Huat,

Andrianto

2023

MOJFPT

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Superoxidised water (SOW) in the food industry has several advantages over traditional chemical disinfectants. SOW is non-toxic and environmentally friendly and does not leave any harmful by-products. In addition, SOW is easy to use and can be applied to various food surfaces. SOW has been used to avoid the food industry's biological pollution caused by food-borne bacteria pathogens with recognized as a short producing time and evident in the sterilization process, SOW is highly recommended for its eco-friendly ability. Chlorine-containing solutions such as SOW are used for broad disinfection purposes, including in the food industry. Still, their effectiveness and stabilities often need to be investigated as residues such as chlorine in SOW are not stable. The efficacy of SOW can be easily affected by several factors, including pH, temperature, and organic matter content. In this study, the two different storage conditions influenced by the light exploration were used to investigate the light condition that directly impacts the chlorine level in SOW. Light intensity plays an important role in determining chlorine loss from SOW. Chlorine dissipation rates in the light condition are higher than in the dark condition. With the initial 40+0.00 mg/L of chlorine, the chlorine level was decreased as plastic bottle/light > glass bottle/light > plastic bottle/without light> glass bottle/without light. They show that the change in chlorine level is significantly influenced by the type of bottle and the environmental condition, such as light intensity, in this study. The results obtained in this study validate the practice of SOW’s storage condition to slow down chlorine's bulk decay when applied in various industries, such as the food industry.

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Removal of antimicrobial resistance determinants from wastewater: a risk perspective on conventional and emerging technologies

Cited by 9 publications

References 184 publications

Leachate Treatment via TiO2/UV Heterogeneous Photocatalysis: A Multiple Polynomial Regression Model

Leachate Treatment via TiO2/UV Heterogeneous Photocatalysis: A Multiple Polynomial Regression Model

Insights Into the Application of Polyaniline-Based Composites in Environmental Engineering

Effects of storage conditions on superoxidised water

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