Designing and operating a pilot plant for purification of industrial wastewater from toxic organic compounds by utilizing solar energy

Abid, Mohammad F.; Mohamed, Mohamed Ahmed Ebrahim; Nafi, Orroba; Hussain, Luma A.; Maneual, Neran; Sameer, Abeer

doi:10.1007/s11814-014-0052-0

Cited by 12 publications

(6 citation statements)

References 23 publications

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“…This could be because of the electro-repulsion forces between TiO2 Nps and DBT cations in the suspension hindering the sorption of cations onto the N-TiO2. Abid et al [40] presented Equations ( 11) and (12) showing the variation of the characteristics of TiO2 surface with the change of pH of the polluted liquid near its pHpzc.…”

Section: Effect Of Phmentioning

confidence: 99%

Catalytic Photodegradation of Cyclic Sulfur Compounds in a Model Fuel Using a Bench-scale Falling-film Reactor Irradiated by a Visible Light

Mousa

Mohammed

Shnain

et al. 2022

Bull. Chem. React. Eng. Catal.

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A homemade N doped-TiO2 nanoparticle were used to degrade dibenzothiophene (DBT) in a model fuel flowing on a bench-scale glass-made falling film reactor irradiated by a xenon lamp that emitted visible light. The photocatalyst was immobilized on the glass sheet. EDS, SEM, and FT-IR techniques were utilized to identify the morphology of the N doped-TiO2 nanoparticles. Different operating parameters (e.g., N loading (0, 4, 5, and 6 wt%), light intensity (20, 40, and 60 W/m2), and pH (4, 7, and 10)) were investigated for their effect on the DBT degradation. The effect of the N loading on the wettability of the nano-TiO2 particles was also investigated. Experimental results revealed that the N loading did not affect the wettability characteristics of the nano TiO2 particles. Moreover, results showed that DBT conversion positively depends on N loading, light intensity (hv), and pH increase. The estimated optimal operating parameters were 5 wt% N loading, pH = 10, and hv = 40 W/m2 to ensure the best photo-oxidation efficiency of 91.4% after 120 min of operation. The outcomes of the present work confirmed the effective efficiency of the N-doped TiO2 nanoparticles irradiated by visible light for DBT degradation. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Section: Effect Of Phmentioning

confidence: 99%

Catalytic Photodegradation of Cyclic Sulfur Compounds in a Model Fuel Using a Bench-scale Falling-film Reactor Irradiated by a Visible Light

Mousa

Mohammed

Shnain

et al. 2022

Bull. Chem. React. Eng. Catal.

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“…However, as the H 2 O 2 loading increased more than 400 mg/L, the rate of increase in %R was less. This may be attributed to that as more quantity of H 2 O 2 is added more • OH radicals are generated, yet the excess of H 2 O 2 react with the hydroxyl radicals generated rather than with the organic substrate, according to Equations ( 4) and ( 5) [11,24]:…”

Section: Effect Of H 2 O 2 Loadingmentioning

confidence: 99%

“…Copper oxides in conjunction with TiO2 were stated to give greater stability and greater efficacy photocatalytic. [9] Many investigations investigated the deterioration of toxic material produced from industrial activities (i.e., xylene, antibiotics, phenol, and pesticides) through the use of homogenous photocatalytic processes using a constant UV or variable solar radiating reactor with a variety of operational parameters: the pH of the solution, the catalyst concentration, loading of a homogeneous catalyst, H2O2 loading, and liquid flow rate [10][11][12][13][14]. In recent studies, Khan et al [15] investigated the The advanced oxidation process (e.g., heterogeneous photocatalysis) encompasses the use of a solid semiconductor such as ZnO and TiO2 to form an irradiation-effect stable suspension, to enhance the chemical reaction into the operating system.…”

Section: Introductionmentioning

confidence: 99%

Degradation of Anti-Inflammatory Drugs in Synthetic Wastewater by Solar Photocatalysis

Al-Jemeli

Mahmoud

Majdi³

et al. 2021

Catalysts

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Due to the high number of anti-inflammatory drugs (AIMDs) used by the public health sector in Iraq and distributed all over the country and due to their toxicity, there is a need for an environmental-friendly technique to degrade any wasted (AIMD) present in aquatic ecosystem. The degradation of diclofenac sodium (DCF), ibuprofen (IBN), and mefenamic acid (MFA) in synthetic hospital wastewater were investigated utilizing locally-made Cu-coated TiO2 nanoparticles in a solar-irradiated reactor. Different key variables were studied for their effects on process efficiency, such as loadings of catalyst (C CU-TiO2 = 100–500 mg/L), AIMDs (100 µg/L), pH (4–9), and hydrogen peroxide (CH2O2 = 200–800 mg/L). The results revealed that degradation percentages of 96.5, 94.2, and 82.3%, were obtained for DCF, IBN, and MFA, respectively, using our Cu-coated TiO2 catalyst within 65 min at pH = 9, while other parameters were C CU-TiO2 = 300 mg/L, and CH2O2 = 400 mg/L. The experimental results revealed coupling photocatalysis with solar irradiation as a clean energy source could be utilized for the degradation of toxic pollutants in surface water.

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“…One of the emerging techniques for mitigating gaseous pollutants is using heterogeneous photo-oxidation (HPO) [11][12]. The HPO techniques entail using photocatalysts, mostly semiconductors, to degrade these recalcitrant organic pollutants in the presence of an active radiation source and an oxidizing agent.…”

Section: Introductionmentioning

confidence: 99%

Use of TiO2 in Photocatalysis for Air Purification and Wastewater Treatment: A Review

Mohammed¹,

Shnain²,

Abid³

2022

ETJ

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Designing and operating a pilot plant for purification of industrial wastewater from toxic organic compounds by utilizing solar energy

Cited by 12 publications

References 23 publications

Catalytic Photodegradation of Cyclic Sulfur Compounds in a Model Fuel Using a Bench-scale Falling-film Reactor Irradiated by a Visible Light

Catalytic Photodegradation of Cyclic Sulfur Compounds in a Model Fuel Using a Bench-scale Falling-film Reactor Irradiated by a Visible Light

Degradation of Anti-Inflammatory Drugs in Synthetic Wastewater by Solar Photocatalysis

Use of TiO2 in Photocatalysis for Air Purification and Wastewater Treatment: A Review

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