Removal of an Ethoxylated Alkylphenol by Adsorption on Zeolites and Photocatalysis with TiO2/Ag

Aguilar, Claudia A.; Abatal, Mohamed; Romero, Carlos Montalvo; Franseschi, F. Anguebes; Elias, Miguel Angel Ramirez; Cantú-Lozano, Denis

doi:10.3390/pr7120889

Cited by 6 publications

(2 citation statements)

References 35 publications

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“…Sorbents, materials, or mixtures of insoluble materials are used to recover fluids during adsorption, physical attachment, or both [66][67][68][69][70][71][72][73][74][75][76]. Adsorbents must be absorbent of oil compounds and also waterproof [77].…”

Section: Adsorption Methodsmentioning

confidence: 99%

Petroleum Hydrocarbon Removal from Wastewaters: A Review

et al. 2020

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Oil pollutants, due to their toxicity, mutagenicity, and carcinogenicity, are considered a serious threat to human health and the environment. Petroleum hydrocarbons compounds, for instance, benzene, toluene, ethylbenzene, xylene, are among the natural compounds of crude oil and petrol and are often found in surface and underground water as a result of industrial activities, especially the handling of petrochemicals, reservoir leakage or inappropriate waste disposal processes. Methods based on the conventional wastewater treatment processes are not able to effectively eliminate oil compounds, and the high concentrations of these pollutants, as well as active sludge, may affect the activities and normal efficiency of the refinery. The methods of removal should not involve the production of harmful secondary pollutants in addition to wastewater at the level allowed for discharge into the environment. The output of sewage filtration by coagulation and dissolved air flotation (DAF) flocculation can be transferred to a biological reactor for further purification. Advanced coagulation methods such as electrocoagulation and flocculation are more advanced than conventional physical and chemical methods, but the major disadvantages are the production of large quantities of dangerous sludge that is unrecoverable and often repelled. Physical separation methods can be used to isolate large quantities of petroleum compounds, and, in some cases, these compounds can be recycled with a number of processes. The great disadvantage of these methods is the high demand for energy and the high number of blockages and clogging of a number of tools and equipment used in this process. Third-party refinement can further meet the objective of water reuse using methods such as nano-filtration, reverse osmosis, and advanced oxidation. Adsorption is an emergency technology that can be applied using minerals and excellent materials using low-cost materials and adsorbents. By combining the adsorption process with one of the advanced methods, in addition to lower sludge production, the process cost can also be reduced.

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Section: Adsorption Methodsmentioning

confidence: 99%

Petroleum Hydrocarbon Removal from Wastewaters: A Review

et al. 2020

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“…These two stages (adsorption and regeneration) are composed of four steps: adsorption, depressurization, purge, and repressurization. The process operates cyclically; when one column adsorbs, the other is regenerated, and then the stages are reversed [12,14,20,21,[25][26][27][28]. The mathematical model of the PSA process is described by Partial Differential Equations (PDE), and, to solve these equations, initial and boundary conditions are necessary.…”

Section: Introductionmentioning

confidence: 99%

Adsorption and Separation of the H2O/H2SO4 and H2O/C2H5OH Mixtures: A Simulated and Experimental Study

et al. 2020

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Adsorption processes are characterized by their kinetics and equilibrium isotherms described by mathematical models. Nowadays, adsorption with molecular sieves is a method used to separate certain elements or molecules from a mixture and produce hydrogen, nitrogen, oxygen, ethanol, or water treatment. This study had two main objectives. The first one was focused on the use of different natural (Clinoptilolite-S.L. Potosi, Clinoptilolite-Puebla, and Heulandite-Sonora) and synthetic (Zeolite Type 3A) adsorbents to separate the mixtures H 2 O/H 2 SO 4 and H 2 O/C 2 H 5 OH. It was determined that both Zeolite Type-3A and Heulandite-Sonora have greater adsorption capacity in a shorter time compared with the Clinoptilolites at different temperatures. The second objective was the simulation of a pressure swing adsorption process to dehydrate ethanol using the parameters obtained from Zeolite Type 3A (with maximum adsorption capacity). Several configurations were considered to calculate the appropriate nominal values for the optimal process. The results illustrate that the purity of ethanol is increased when the following parameters are considered in the adsorption process: a high pressure, a constant temperature between 100 and 120 • C, a feed composition near the azeotropic point with lower water content, and a purge pressure near the vacuum. Finally, the results show that it is possible to take advantage of the length of the absorber bed in order to reduce the energy costs by increasing the ethanol production as well as complying with the international purity standards.

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Review on Current Research of Fabrication, Properties and Applications in Zeolite

Soonmin

2024

Springer Proceedings in Materials

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Removal of an Ethoxylated Alkylphenol by Adsorption on Zeolites and Photocatalysis with TiO2/Ag

Cited by 6 publications

References 35 publications

Petroleum Hydrocarbon Removal from Wastewaters: A Review

Petroleum Hydrocarbon Removal from Wastewaters: A Review

Adsorption and Separation of the H2O/H2SO4 and H2O/C2H5OH Mixtures: A Simulated and Experimental Study

Review on Current Research of Fabrication, Properties and Applications in Zeolite

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