Simultaneous regeneration of cathodic activated carbon fiber and mineralization of desorbed contaminations by electro-peroxydisulfate process: Advantages and limitations

Liu, Zhen; Ren, Bangxing; Ding, Haojie; He, Huan; Deng, Huiping; Zhao, Chun; Wang, Pu; Dionysiou, Dionysios D.

doi:10.1016/j.watres.2019.115456

Cited by 56 publications

(21 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…10 It was worth noting that the E-PMS process maintained about 10% more of the initial adsorption capacity than E-PDS treatment did after 6 h of regeneration under the same operating conditions. 26 The contributions to PN degradation from direct electron transfer, oxidation, and nonradical reaction were similar to the two processes, but the ratios of ROS were quite different. In the E-PDS process, • OH accounted for 28.23% of the ROS (and SO 4…”

Section: Resultsmentioning

confidence: 91%

“…The electrochemically activated peroxydisulfate (PDS) process has some ability to mineralize desorbed phenol (PN), but the copious oxides and oligomers generated by anodization can be readsorbed onto the carbon, resulting in a regeneration efficiency of only 60% or so. 26 Even if ferric ions are introduced to enhance the activation, the regeneration efficiency of the electro-PDS system is barely improved. 29 Peroxymonosulfate (PMS) tends to have better pollutant removal performance than PDS in the electro-persulfate process, 30,31 and an electro-ACF-PMS process has been shown to produce ROS efficiently at both the cathode and anode.…”

Section: Introductionmentioning

confidence: 99%

“…There are, however, electrochemical-based advanced oxidation processes (AOPs) that promise to achieve in situ desorption and mineralization of pollutants during regeneration: the electro-peroxone, electro-Fenton, − and electro-persulfate processes in particular (Supporting Information, Table S1). Pollutants on AC can quickly be desorbed into the regeneration solution under the action of an electric field, while reactive oxygen species (ROS) continuously generated by the activation of oxidants completely mineralize the desorbed pollutants.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

In Situ Regeneration of Phenol-Saturated Activated Carbon Fiber by an Electro-peroxymonosulfate Process

Ding

Zhu

et al. 2020

Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

Regeneration is required to restore the adsorption performance of activated carbon used as an adsorbent in water purification. Conventional thermal and electrochemical regenerations have high energy consumption and poor mineralization of pollutants, respectively. In this study, phenol-saturated activated carbon fiber was regenerated in situ using an electro-peroxymonosulfate (E-PMS) process, which mineralized the desorbed contaminants with relatively low energy consumption. The initial adsorbed phenol (81.90%) was mineralized, and only 4.07% of the initial concentration remained in the solution after 6 h of E-PMS regeneration. The phenol degradation was dominated by hydroxyl radical oxidation. Adding the PMS in three doses at 2 h intervals improves the regeneration performance from 75% to more than 82%. Regeneration retained 60% of its initial effectiveness even in the 10th cycle with 4.40% of the initial concentration of phenol remaining in the solution. These results confirm the E-PMS regeneration process as effective, sustainable, and environmentally friendly for regenerating activated carbon.

show abstract

Section: Resultsmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

In Situ Regeneration of Phenol-Saturated Activated Carbon Fiber by an Electro-peroxymonosulfate Process

Ding

Zhu

et al. 2020

Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Some limitations are mentioned for this approach, such as the shortage of renewable resources and the difficulties in the regeneration of the substrate. The global demand for the production of activated carbon using alternative environmentally friendly resources has annually increased (Liu et al 2020;Suhas et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Application of response surface methodology for color removing from dyeing effluent using de-oiled activated algal biomass

El-Mekkawi

Abdelghaffar

et al. 2021

Bull Natl Res Cent

View full text Add to dashboard Cite

Background Conservation of the ecosystem is a prime concern of human communities. Industrial development should adopt this concern. Unfortunately, various related activities release lots of noxious materials concurrently with significant leakage of renewable resources. This work presents a new biosorbent activated de-oiled microalgae, Chlorella vulgaris, (AC) for biosorption of Acid Red 1 (AR1) from aqueous solution simulated to textile dyeing effluent. The biosorption characteristics of AC were explored as a function of the process parameters, namely pH, time, and initial dye concentration using response surface methodology (RSM). Results Optimization is carried out using the desirability approach of the process parameters for maximum dye removal%. The ANOVA analysis of the predicted quadratic model elucidated significant model terms with a regression coefficient value of 0.97, F value of 109.66, and adequate precision of 34.32 that emphasizes the applicability of the model to navigate the design space. The optimization depends on the priority of minimizing the time of the process to save energy and treating high concentrated effluent resulted in removal % up to 83.5%. The chemical structure and surface morphology of AC, and the dye-loaded biomass (AB) were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray analysis (EDX), and transmission electron microscope (TEM). The activation process transforms the biomass surface into a regular and small homogeneous size that increases the surface area and ultimately enhances its adsorption capacity Conclusion The optimization of the process parameters simultaneously using RSM performs a high-accurate model which describes the relationship between the parameters and the response through minimum number of experiments. This study performed a step towards an integrated sustainable solution applicable for treating industrial effluents through a zero-waste process. Using the overloaded biomass is going into further studies as micronutrients for agricultural soil.

show abstract

“…The increase in roughness increases interfacial area, thereby increasing interfacial strength. The other method of increasing interfacial strength is introducing surface functional groups that increase the affinity of epoxy matrix with CF through polar interactions [7][8][9][10][11][12] . Several researchers have worked on analysing the failure of fiber based polymeric composites in terms of interfacial micromechanical approach [13][14][15][16] and spectroscopic characterisation of interfaces.…”

mentioning

confidence: 99%

Tuneable chemistry at the interface and self-healing towards improving structural properties of carbon fiber laminates: a critical review

et al. 2021

View full text Add to dashboard Cite

show abstract

Simultaneous regeneration of cathodic activated carbon fiber and mineralization of desorbed contaminations by electro-peroxydisulfate process: Advantages and limitations

Cited by 56 publications

References 42 publications

In Situ Regeneration of Phenol-Saturated Activated Carbon Fiber by an Electro-peroxymonosulfate Process

In Situ Regeneration of Phenol-Saturated Activated Carbon Fiber by an Electro-peroxymonosulfate Process

Application of response surface methodology for color removing from dyeing effluent using de-oiled activated algal biomass

Tuneable chemistry at the interface and self-healing towards improving structural properties of carbon fiber laminates: a critical review

Contact Info

Product

Resources

About