Impact of ultrasonic pretreatment on Fenton-based oxidation of olive mill wastewater - towards a sustainable treatment scheme

Çığgın, Aslı Seyhan; Sarica, E. Selinay; Doğruel, Serdar; Orhon, Derin

doi:10.1016/j.jclepro.2021.127948

Cited by 26 publications

(8 citation statements)

References 46 publications

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“…It fulfills the requirements of “green chemistry” [7] . Research on combining it with other AOPs or biological treatments to reduce the cost has been conducted [8] , [9] , [10] . However, most of the laboratory experiments on sonodegradation were performed in pure water, which neglected the fact that the sonochemical process could be affected by the suspended solids in wastewater, including sand grains and microplastics [11] .…”

Section: Introductionmentioning

confidence: 99%

Clarification of regimes determining sonochemical reactions in solid particle suspensions

Xia

et al. 2022

Ultrasonics Sonochemistry

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Section: Introductionmentioning

confidence: 99%

Clarification of regimes determining sonochemical reactions in solid particle suspensions

Xia

et al. 2022

Ultrasonics Sonochemistry

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“…In addition, nZVI self-production of H 2 O 2 and higher Fe 2 + concentration in solution directly accelerated COD removal from palm oil mill effluent (POME) by Fenton method. Ciggin et al [59] on the other hand, evaluated the potential of ultrasound-enhanced advanced oxidation in reducing the toxicity and organic content of olive mill wastewaters (OMWs). The highlight was the effective toxicity reduction achieved by Fenton oxidation, which was assessed by respirometry, where the individual removal efficiencies of the ultrasonic and advanced oxidation processes were evaluated separately and sequentially.…”

Section: Sf (1))mentioning

confidence: 99%

Fenton‐Like Reaction: Recent Advances and New Trends

Xiao,

Guo,

Wang

et al. 2024

Chemistry A European J

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The Fenton reaction refers to the reaction in which ferrous ions (Fe2+) produce hydroxyl radicals and other reactive oxidizing substances by decomposing hydrogen peroxide (H2O2). This paper reviews the mechanism, application system, and materials employed in the Fenton reaction including conventional homogeneous and non‐homogeneous Fenton reactions as well as photo‐, electrically‐, ultrasonically‐, and piezoelectrically‐triggered Fenton reactions, and summarizes the applications in the degradation of soil oil pollutions, landfill leachate, textile wastewater, and antibiotics from a practical point of view. The mineralization paths of typical pollutant are elucidated with relevant case studies. The paper concludes with a summary and outlook of the further development of Fenton‐like reactions.

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“…The fit of the model for the responses is determined by the coefficient of determination (R 2 ) and the coefficient of variation (C.V) values; the value of R 2 must be greater than 0.8 to indicate a good model for the data [62]. The C.V is the standard deviation-tomean ratio, expressed as a percentage (%); C.V less than 10% indicates that the model is reproducible [63][64][65]. In this study, all the responses had an R 2 greater than 0.90; as shown in Table 5, the R 2 for O&G and COD was 98.38% and 95.58%, respectively.…”

Section: Statistical Analysis By Rsmmentioning

confidence: 99%

Ultrasonic (US)-Assisted Electrocoagulation (EC) Process for Oil and Grease (O&G) Removal from Restaurant Wastewater

et al. 2023

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Restaurant wastewater contains a high concentration of O&G, up to 3434 mg/L. This study aims to (a) assess the efficiency of EC combined with US methods for O&G removal in restaurant wastewater, (b) identify the optimum condition for COD degradation using EC treatment via response surface methodology (RSM), and (c) determine the morphological surface of the aluminium (Al) electrode before and after EC treatment. The wastewater samples were collected from the Lembaran cafeteria at the Universiti Sains Malaysia (USM). The efficiency of EC, US, and US-EC, combined methods for O&G removal, was investigated using a batch reactor (pH 7). The interelectrode distance (ID, 2–6 cm), electrolysis time (T, 15–35 min), and current density (CD, 40–80 A/m2) were analysed, followed by RSM. The response variables were O&G (1000 mg/L) and chemical oxygen demand (COD low range, 1000 mg/L). The central composite design (CCD) with a quadratic model was used to appraise the effects and interactions of these parameters. The morphological surface of the electrode used was observed via scanning electron microscopy (SEM). The optimum removal efficiencies obtained were 95.4% (O&G) and 75.9% (COD) (ID: 2.4 cm, T: 30.5 min, and CD: 53.2 A/m2). The regression line fitted the data (R2 O&G: 0.9838, and R2 COD: 0.9558). The SEM images revealed that the use of US was useful in minimising cavitation on the electrode surface, which could lower the EC treatment efficacy. The US-EC combined technique is highly recommended for O&G removal from the food industry’s wastewater.

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Impact of ultrasonic pretreatment on Fenton-based oxidation of olive mill wastewater - towards a sustainable treatment scheme

Cited by 26 publications

References 46 publications

Clarification of regimes determining sonochemical reactions in solid particle suspensions

Clarification of regimes determining sonochemical reactions in solid particle suspensions

Fenton‐Like Reaction: Recent Advances and New Trends

Ultrasonic (US)-Assisted Electrocoagulation (EC) Process for Oil and Grease (O&G) Removal from Restaurant Wastewater

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