GO/PEDOT:NaPSS modified cathode as heterogeneous electro-Fenton pretreatment and subsequently aerobic granular sludge biological degradation for dye wastewater treatment

Liu, Yingrui; Li, Kai; Xu, Weiying; Du, Bin; Wei, Qin; Liu, Bing; Wei, Dong

doi:10.1016/j.scitotenv.2019.134536

Cited by 30 publications

(10 citation statements)

References 35 publications

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“…The group managed to achieve an approximately 95% removal rate of 2,4-dichlorophenol within 120 minutes (Table 5). Besides, another study by Liu et al (2020) found that their modified cathode was able to generate high H 2 O 2 up to ∼85 mg/L H 2 O 2 within 120 minutes. The modified cathode, namely PEDOT: NaPSS, which consists of poly(3,4-ethylene dioxythiophene) (PEDOT) and sodium polystyrene sulfonate (NaPSS) coated on graphite felt, showed a high removal percentage in methylene blue (90.2% within 30 minutes) (Table 5) due to high oxygen reduction reaction occurred at the cathode and subsequently produce peroxide in high concentration.…”

Section: Chemical Treatmentsmentioning

confidence: 96%

A review on future wastewater treatment technologies: micro-nanobubbles, hybrid electro-Fenton processes, photocatalytic fuel cells, and microbial fuel cells

Selihin

Tay

2021

Water Science and Technology

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The future prospect in wastewater treatment technologies mostly emphasizes processing efficiency and the economic benefits. Undeniably, the use of advanced oxidation processes (AOPs) in physical and chemical treatments has played a vital role in helping the technologies to remove the organic pollutants efficiently and reduce the energy consumption or even harvesting the electrons movements in the oxidation process to produce electrical energy. In the present paper, we reviewed several types of wastewater treatment technologies, namely micro-nanobubbles, hybrid electro-Fenton processes, photocatalytic fuel cells, and microbial fuel cell. The aims are to explore the interaction of hydroxyl radicals with pollutants using these wastewater technologies, including their removal efficiencies, optimal conditions, reactor setup, and energy generation. Despite these technologies recorded high removal efficiency of organic pollutants, the selection of the technologies is dependent on the characteristic of the wastewater and the daily production volume. Hence the review paper also provides comparisons between technologies as the guidance in technology selection.

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Section: Chemical Treatmentsmentioning

confidence: 96%

A review on future wastewater treatment technologies: micro-nanobubbles, hybrid electro-Fenton processes, photocatalytic fuel cells, and microbial fuel cells

Selihin

Tay

2021

Water Science and Technology

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“…Recently, the Fenton process has rarely been used as a pre-treatment method in twostep textile dye degradation. Liu et al [236] performed investigations on the electrode modifications for the electro-Fenton process followed by aerobic granular sludge treatment. They obtained almost complete discoloration of methylene blue after 60 min of EF with above 70% TOC removal.…”

Section: Chemical Pre-treatmentmentioning

confidence: 99%

Recent Achievements in Dyes Removal Focused on Advanced Oxidation Processes Integrated with Biological Methods

2021

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In the last 3 years alone, over 10,000 publications have appeared on the topic of dye removal, including over 300 reviews. Thus, the topic is very relevant, although there are few articles on the practical applications on an industrial scale of the results obtained in research laboratories. Therefore, in this review, we focus on advanced oxidation methods integrated with biological methods, widely recognized as highly efficient treatments for recalcitrant wastewater, that have the best chance of industrial application. It is extremely important to know all the phenomena and mechanisms that occur during the process of removing dyestuffs and the products of their degradation from wastewater to prevent their penetration into drinking water sources. Therefore, particular attention is paid to understanding the mechanisms of both chemical and biological degradation of dyes, and the kinetics of these processes, which are important from a design point of view, as well as the performance and implementation of these operations on a larger scale.

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“…Following the combination trends of AOPs with biological processes, EF has been an excellent option to handle recalcitrant pollutants resisting biological degradation such as most of pesticides, synthetic dyes, industrial chemicals, pharmaceuticals, etc. Therefore, different coupled strategies (either sequenced or integrated processes) have been proposed (Table 2) [15,[44][45][46][47][48][49][50][51][52][53][54][55][56][57][58]. In the case of sequenced processes (pioneered by the groups of Oturan [59] and Fourcade [15]), the most common approach has been the use of EF as pre-treatment step to increase the biodegradability of refractory effluents during a short treatment time (to save electrical energy for cost effectiveness) [59,60], whereas the remaining biodegradable organics are treated by conventional biological means.…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Electrochemical technologies coupled with biological treatments

Mousset

Trellu

Olvera‐Vargas

et al. 2021

Current Opinion in Electrochemistry

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GO/PEDOT:NaPSS modified cathode as heterogeneous electro-Fenton pretreatment and subsequently aerobic granular sludge biological degradation for dye wastewater treatment

Cited by 30 publications

References 35 publications

A review on future wastewater treatment technologies: micro-nanobubbles, hybrid electro-Fenton processes, photocatalytic fuel cells, and microbial fuel cells

A review on future wastewater treatment technologies: micro-nanobubbles, hybrid electro-Fenton processes, photocatalytic fuel cells, and microbial fuel cells

Recent Achievements in Dyes Removal Focused on Advanced Oxidation Processes Integrated with Biological Methods

Electrochemical technologies coupled with biological treatments

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