Coupling ozonation with hydrogen peroxide and chemically enhanced primary treatment for advanced treatment of grey water

Karahan, Beyza Nur; Akdag, Yasemin; Fakioglu, Malhun; Korkut, Sevde; Guven, Huseyin; Ersahin, Mustafa Evren; Ozgun, Hale

doi:10.1016/j.jece.2023.110116

Cited by 10 publications

(5 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the ORP peak indicates the timing of adding H 2 O 2 , the actual dosage is not fixed and can be adjusted based on the trend of ORP changes after the peak; thus, the quantitative design in this experiment is only used as a research reference. Furthermore, the economic feasibility of the overall oxidation layout of ozone after adding H 2 O 2 must also be considered …”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Optimizing Micro/Nanobubble Ozonation: Unveiling Key Transition Points in Ozone Oxidation through Real-Time ORP Monitoring and Combined Ozone–Hydrogen Peroxide Process in Textile Wastewater Treatment

Liu,

Li,

et al. 2024

ACS EST Water

View full text Add to dashboard Cite

The treatment capacity of ozone advanced oxidation technology for industrial wastewater is limited due to ozone's inherent selective degradation of complex matrix components, leading the process from rapid oxidation to slow oxidation. Based on the influences of gas−liquid mass transfer characteristics and chemical reactivity on the rapid and slow oxidation processes of ozone, a synergistic process of ozone micro/nanobubbles (MNBs/O 3 ) and H 2 O 2 based on oxidation− reduction potential (ORP) is proposed to achieve deep removal of the ozoneresistant matrix in industrial wastewater. In deionized water, a second-order reaction kinetic method based on ozone and • OH exposure is used to assess the sensitivity of the ORP to identify the oxidation stage of MNBs/O 3 . Under different pH conditions, the feasibility of ORP real-time monitoring for reflecting the degradation efficiency of organic pollutants in actual dyeing wastewater effluent is further determined through batch experiments. The upward inflection point of the ORP effectively marks the end of the predominantly mass transfer-driven rapid ozonation process, which is likely the critical saturation phase point of ozone. The results further indicate that staged addition of H 2 O 2 based on the upward inflection point of ORP in the MNB ozonation reaction is a more promising approach for deep removal of resistant pollutants.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Furthermore, the economic feasibility of the overall oxidation layout of ozone after adding H 2 O 2 must also be considered. 29 3.5. Segmented Microbubble Ozonation Process.…”

Section: Experimental Dosage Optimization Of H 2 Omentioning

confidence: 99%

Optimizing Micro/Nanobubble Ozonation: Unveiling Key Transition Points in Ozone Oxidation through Real-Time ORP Monitoring and Combined Ozone–Hydrogen Peroxide Process in Textile Wastewater Treatment

Liu,

Li,

et al. 2024

ACS EST Water

View full text Add to dashboard Cite

show abstract

“…Such discharges are known to contain harmful substances such as dyes [6], heavy metals [7], and polycyclic aromatic hydrocarbons (PHAs) [8], which can be detrimental to marine ecosystems and human health. There are several effective techniques for removing organic materials from water, such as ozonation [9], adsorption [10], photocatalytic degradation [11], biosorption [12], chemical precipitation [13], and coagulation [14]. Nevertheless, membrane technology has emerged as a promising purifying and recycling water Disclaimer/Publisher's Note: The statements, opinions, and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s).…”

Section: Introductionmentioning

confidence: 99%

Beta-Cyclodextrin Molecules (β‐CD) Modified PVDF Membranes to Remove Multi-Ionic Dye Solutions using Steric, Inclusion, and Dielectric Exclusion

Alrashedi,

KOCHKAR,

Ercan

2024

Preprint

View full text Add to dashboard Cite

In this study, we aim to evaluate how cyclodextrin molecules affect the hydrophilicity and selec-tivity of PVDF membrane. Herein, we prepared PVDF-PVP(1-x) β-CDx membranes, with x rang-ing from 0 to 1 wt%. The membranes were deeply characterized by means of X-ray diffraction (XRD), attenuated total reflectance infrared (ATR-IR), Raman spectroscopies, Thermal gravimet-ric analysis (TGA), Contact angle measurement (CA), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The study unequivocally demonstrates the effectiveness of the addition of β-CD molecules on membranes' structural, morphological, and dielectric properties. Adding 0.25wt% β-CD enhanced hydrophilicity, with CA decreasing from 72.6° to 56° and roughness decreasing from 81 to 29 nm. The PVDF-PVP(1-x) β-CDx membranes were then fully characterized using electrochemical impedance spectroscopy (EIS) to determine their dielectric properties, which clearly showed that the presence of β-CD induced polarization of the mem-brane. The separation of various dyes with different sizes and charges was utilized. These dyes included methylene blue (MB, positive, 0.504 nm), methyl red (MR, neutral, 0.487 nm), rose Bengal (RB, negative, 0.588 nm), and brilliant blue (BB, negative, 0.798 nm). Based on our re-search, we found that the membrane's selectivity is determined by both exclusion factors (such as size and dielectric properties) and inclusion inside the β-CD cage. We found that using alpha-CD instead of beta-CD led to the disappearance of dye inclusion. These findings strongly sug-gest that β-CD molecules can be a viable solution for dye removal from wastewater.

show abstract

“…However, more and more often, the positive aspects of wastewater in the form of resource recovery possibilities are recognized [4]. For example, greywater, which constitutes the majority of wastewater produced in households [5], can be used as an alternative water source [6]. Water reclamation is also gaining popularity in industrial plants and wastewater treatment plants [7,8].…”

Section: Introductionmentioning

confidence: 99%

Opportunities and Challenges for Research on Heat Recovery from Wastewater: Bibliometric and Strategic Analyses

Kordana-Obuch,

Wojtoń,

Starzec

et al. 2023

Energies

View full text Add to dashboard Cite

The potential for recovering heat from wastewater exists at various stages, including generation, transport, and treatment. As a result, various technologies for thermal energy recovery from wastewater are now successfully employed in many countries. In order to synthetically present the current state of knowledge on heat recovery from wastewater, a bibliometric analysis of previously published studies indexed in the Web of Science database was performed. The review was further extended with strategic SWOT and SOAR analyses to identify internal and external factors determining the competitive advantage and weaknesses related to the use of wastewater heat exchangers and heat pumps. These analyses indicated the need for further research on the possibilities of heat recovery from wastewater as the use of this technology, both at the building level and on a larger scale, contributes to the implementation of sustainable development goals, especially in terms of improving energy efficiency and reducing CO2 emissions. Particular emphasis should be placed on research into the use of warm wastewater together with other, better known and accepted, renewable energy sources. It is also important to continuously educate the public and promote heat recovery technologies at various levels, as well as to increase the involvement of legislators and other stakeholders.

show abstract

Coupling ozonation with hydrogen peroxide and chemically enhanced primary treatment for advanced treatment of grey water

Cited by 10 publications

References 35 publications

Optimizing Micro/Nanobubble Ozonation: Unveiling Key Transition Points in Ozone Oxidation through Real-Time ORP Monitoring and Combined Ozone–Hydrogen Peroxide Process in Textile Wastewater Treatment

Optimizing Micro/Nanobubble Ozonation: Unveiling Key Transition Points in Ozone Oxidation through Real-Time ORP Monitoring and Combined Ozone–Hydrogen Peroxide Process in Textile Wastewater Treatment

Beta-Cyclodextrin Molecules (β‐CD) Modified PVDF Membranes to Remove Multi-Ionic Dye Solutions using Steric, Inclusion, and Dielectric Exclusion

Opportunities and Challenges for Research on Heat Recovery from Wastewater: Bibliometric and Strategic Analyses

Contact Info

Product

Resources

About