Application of poly aluminum chloride and alum as catalyst in catalytic ozonation process after coagulation for the treatment of textile wastewater

Rizvi, Osama Shaheen; Ikhlaq, Amir; Ashar, Ubaid Ullah; Qazi, Umair Yaqub; Akram, Asia; Kalim, Imran; Alazmi, Amira; Shamsah, Sami M. Ibn; Al-Sodani, Khaled A. Alawi; Javaid, Rahat; Qi, Fei

doi:10.1016/j.jenvman.2022.115977

Cited by 26 publications

(4 citation statements)

References 91 publications

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“…The generation of •OH radicals on the surface of the catalyst is attributed to the breakdown of O 3 molecules, which is facilitated by CO. Previous studies in the literature have investigated the impact of hydroxyl radical scavengers to validate the production of •OH radicals in advanced oxidation processes (AOPs) [37], [19]. To elaborate on the mechanism of the CO process (Alum) the decolorization of Methylene Blue was examined in the absence and presence of TBA, which acted as a hydroxyl radical scavenger for both Simple Ozonation and Catalytic Ozonation processes.…”

Section: Effect Of Radical Scavengermentioning

confidence: 99%

“…The study's ndings showed that genuine textile WW met national e uent discharge regulations after removing 89% of COD, 84% of turbidity, 86% of suspended particles, and 98% of color, all without producing any sludge. In addition, the process under investigation was more e cient and cost-effective than SO, photo-Fenton, ozone/ultraviolet (O 3 /UV), electrochemical oxidation, ultraviolet/hydrogen peroxide (UV/H 2 O 2 ), and O 3 /UV/H 2 O 2 [19]. As a result, CO was both effective and inexpensive, therefore its use as a catalyst in practical wastewater treatment, in particular for eliminating strong dyes, is strongly suggested.…”

Section: Introductionmentioning

confidence: 99%

“…By using recycled coagulant as a catalyst in the treatment of actual textile Wastewater [19] demonstrated the e cacy of the CO procedure. The study's ndings showed that genuine textile WW met national e uent discharge regulations after removing 89% of COD, 84% of turbidity, 86% of suspended particles, and 98% of color, all without producing any sludge.…”

Section: Introductionmentioning

confidence: 99%

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Methylene Blue (MB) removal from Aqueous Solution by Alum; Catalytic Ozonation Process

Ikhlaq,

Parveen,

Masood

et al. 2023

Preprint

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The Textile wastewater is among the most polluted types of industrial waste. Wastewater treatment in the textile industries is notoriously difficult because of the use of complex chemicals, Dyes in the textile production steps and conventional methods are not enough to treat these chemicals. Textile wastewater, known for its high pollution levels, poses challenges for treatment due to complex chemicals and dyes. A comparative study was conducted on simple ozonation and catalytic ozonation using alum as a catalyst for degrading methylene blue. Various factors like time, pH, catalyic and ozone dosage were analyzed. Results showed that catalytic activity in ozonation is pH and ozone flow dependent. pH 6.6 and 200V ozone flow achieved maximum methylene blue elimination. Scanning electron microscopy (SEM) was used to characterize surface morphology of catalyst, (FTIR) Fourier transform infrared spectroscopy was used to identify the important functional groups, and energy dispersive X-ray spectroscopy (EDS) was used to characterize the catalyst's elemental composition. Compared to simple ozonation, catalytic ozonation showed higher removal in the initial phase. Real textile wastewater analysis confirmed the effectiveness of alum catalyst in achieving significant removal of methylene blue (87%) through this novel cost-efficient process.

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Section: Effect Of Radical Scavengermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Methylene Blue (MB) removal from Aqueous Solution by Alum; Catalytic Ozonation Process

Ikhlaq,

Parveen,

Masood

et al. 2023

Preprint

Self Cite

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“…Optimization of ozonation parameters and application of catalysts can enhance the effectiveness of the ozonation process. Application of various catalysts have been reported in the catalytic ozonation process; such as electrochemically generated Fe 2+ (Heebner & Abbassi, 2022), Ce-MCM-48 (Li et al, 2015), nanocatalysts (Jin et al, 2023), CaO (Zhou et al, 2023), Mn-loaded C-SiO2 (Chen et al, 2023), and aluminum chloride and alum (Rizvi et al, 2022), among others. The most important influential parameters on the ozonation process and the schematic diagram of the ozonation are presented in Table 3 and Figure 1, respectively.…”

Section: Introductionmentioning

confidence: 99%

Transformation of Traditional Wastewater Treatment Methods into Advanced Oxidation Processes and the Role of Ozonation

Nikbeen¹,

Nayab²

2023

J. Ecol. Eng.

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Technology advancement improves the quality of life, however, it might also introduce new pollutants to the ecosystem, which needs to deal with for the goal of a sustainable ecosystem. Municipal and industrial wastewater has always been important in improving the quality of life while maintaining the sustainability of our planet simultaneously. The diversity of pollutants in wastewater requires more advanced and demanding treatment processes. The ozonation, as a crucial part of the advanced oxidation processes, is a superior oxidation method compared to traditional oxidation methods. After the recognition of ozone as GRAS (generally recognized as safe), its applications have diversified and is used currently for microbial inactivation, degradation of recalcitrant organic compounds, removal of a diverse range of micropollutants, solubilization and reduction of sludge, and removal of color and odor components in wastewaters treatment processes. However, some considerable challenges still exist towards its universal application, such as high ozone generation costs, diversity of pollutants, and formation of ozonation by-products, which still require further studies. The main theme of this review paper is the transformation of traditional oxidation methods into advanced oxidation processes and the role of ozonation in this regard, including its applications, by-products, and its comparison with the traditional oxidation methods and advanced oxidation processes.

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Optimization of Performance the Waste in Treatment of Textile Wastewater Using Response Surface Methodology

Anouzla

Idrissi²,

Hartal³

et al. 2023

Advanced Technology for Smart Environment and Energy

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Application of poly aluminum chloride and alum as catalyst in catalytic ozonation process after coagulation for the treatment of textile wastewater

Cited by 26 publications

References 91 publications

Methylene Blue (MB) removal from Aqueous Solution by Alum; Catalytic Ozonation Process

Methylene Blue (MB) removal from Aqueous Solution by Alum; Catalytic Ozonation Process

Transformation of Traditional Wastewater Treatment Methods into Advanced Oxidation Processes and the Role of Ozonation

Optimization of Performance the Waste in Treatment of Textile Wastewater Using Response Surface Methodology

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