Performance indicators for a holistic evaluation of catalyst-based degradation—A case study of selected pharmaceuticals and personal care products (PPCPs)

He, Mingjing; Wan, Zhonghao; Tsang, Daniel C.W.; Sun, Yuqing; Khan, Eakalak; Hou, Deyi; Graham, Nigel

doi:10.1016/j.jhazmat.2020.123460

Cited by 31 publications

(6 citation statements)

References 160 publications

(192 reference statements)

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“…In particular, among the different available adsorbents, biochar can be considered as an ideal substitute to remediate PCs from wastewater [ 56 , 57 ]. Biochar as an adsorbent provides the maximum benefits to wastewater treatment because of its physiochemical properties.…”

Section: Biochar As Adsorbents For Removal Of Pcsmentioning

confidence: 99%

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Biochar-mediated removal of pharmaceutical compounds from aqueous matrices via adsorption

Chauhan

Shafi

Dubey

et al. 2022

Waste Dispos. Sustain. Energy

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Pharmaceutical is one of the noteworthy classes of emerging contaminants. These biologically active compounds pose a range of deleterious impacts on human health and the environment. This is attributed to their refractory behavior, poor biodegradability, and pseudopersistent nature. Their large-scale production by pharmaceutical industries and subsequent widespread utilization in hospitals, community health centers, and veterinary facilities, among others, have significantly increased the occurrence of pharmaceutical residues in various environmental compartments. Several technologies are currently being evaluated to eliminate pharmaceutical compounds (PCs) from aqueous environments. Among them, adsorption appears as the most viable treatment option because of its operational simplicity and low cost. Intensive research and development efforts are, therefore, currently underway to develop inexpensive adsorbents for the effective abatement of PCs. Although numerous adsorbents have been investigated for the removal of PCs in recent years, biochar-based adsorbents have garnered tremendous scientific attention to eliminate PCs from aqueous matrices because of their decent specific surface area, tunable surface chemistry, scalable production, and environmentally benign nature. This review, therefore, attempts to provide an overview of the latest progress in the application of biochar for the removal of PCs from wastewater. Additionally, the fundamental knowledge gaps in the domain knowledge are identified and novel strategic research guidelines are laid out to make further advances in this promising approach towards sustainable development.

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Section: Biochar As Adsorbents For Removal Of Pcsmentioning

confidence: 99%

“…Over the past few years, biochar has emerged as a potential adsorbent material for the removal of PCs, especially due to its tunable surface chemistry, large specific surface area (SSA), and high porosity [ 56 , 57 ]. Biochar can be classified depending on the type of waste residues utilized as feedstock.…”

Section: Introductionmentioning

confidence: 99%

Biochar-mediated removal of pharmaceutical compounds from aqueous matrices via adsorption

Chauhan

Shafi

Dubey

et al. 2022

Waste Dispos. Sustain. Energy

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“…Although many researchers have used different techniques, such as electrochemistry(X. Qian et al, 2022) and advanced oxidation techniques to study the degradation of PPCPs, the problem of high‐energy consumption and low efficiency remains (Z. Wang et al, 2023). Currently, conventional wastewater treatment processes have limited removal efficiency for PPCP contaminants (He et al, 2021; Q. Liu et al, 2022; Sun et al, 2016). Therefore, there is an urgent need to develop efficient wastewater treatment technologies to effectively control PPCP contamination.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of electro‐Fenton and photoelectro‐Fenton processes using a novel photocatalytic fuel cell electro‐Fenton system with g‐C₃N₄@N‐TiO₂ and Ag/CNT@CF as electrodes

Ma,

Li,

Yang

et al. 2024

Water Environment Research

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In this study, a novel photocatalytic fuel cell electro‐Fenton (PFC‐EF) system was constructed using g‐C3N4@N‐TNA and Ag/CNT@CF as electrodes. The composition, structure, and morphology of the electrodes were obtained. The g‐C3N4@N‐TNA, with its 2.37 eV band gap and 100 mV photovoltage, has excellent excitation properties for sunlight. Ag/CNT@CF with abundant pores, CNT 3D nanostructures, and Ag crystals on the surface can improve the electro‐Fenton efficiency. A comparative study of rhodamine B (RhB) degradation was performed in this system. It has been shown that electric fields can greatly enhance the oxidation efficiency of both anode photocatalysis and the cathode electro‐Fenton process. Under optimal conditions, RhB can be completely removed by the photoelectro‐Fenton (PEF) process. The energy consumption of the PEF system was obtained. The electrical energy per order (EE/O) is only 9.2 kWh/m3·order, which is only 16.5% of EF and 2.2% of PFC‐EF system. The mineralization current efficiency (MCE) of the PEF system reached 93.3% for a 2‐h reaction. Therefore, the PEF system has the advantage of saving energy. The kinetic analysis shows that the RhB removal follows a first‐order kinetic law, and the reaction rate constant reaches 0.1304 min−1, which is approximately 5.2 times larger and 4.0 times larger than the electro‐Fenton and PFC‐EF processes, respectively. RhB removal is a coupling multimechanism in which an electric field enhances photoelectron migration, Ag loading improves H2O2 generation, UV light coupled with H2O2 promotes hydroxyl radical (٠OH) generation, and the nanoconfinement effect of CNTs promotes ٠OH accumulation in favor of RhB degradation.Practitioner Points Novel efficiency photocatalytic fuel cell electro‐Fenton system was constructed. The electric field greatly enhances the photocatalytic fuel cell electro‐Fenton system. Multiple coupling mechanisms of UV/H2O2, UV/Fenton and photo‐electro‐Fenton have been revealed.

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“…Conventional treatment techniques are unable to effectively remove the PPCPs (5). Some of these removal techniques have disadvantages, such as high costs, long operating time, and production of toxic by-products (6,7). In order to solve the problems associated with these conventional purification methods, various advanced oxidation processes (AOPs) have been considered.…”

Section: Introductionmentioning

confidence: 99%

Enhanced electro-Fenton processes by persulfate radical for atenolol oxidation from aqueous solution

Chatraee

Ebrahimi

Fatehizadeh

2022

Environ Health Eng Manag

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Background: Pharmaceuticals and personal care products (PPCPs) are a group of emerging environmental pollutants that have attracted the attention of many researchers due to their harmful effects on aquatic environment, animals, and humans. Thus, it is necessary to remove these contaminants from water resources. This study aimed to assess the efficiency of enhanced electro-Fenton (EF) process by persulfate (PS) radical for removal of atenolol (ATL) from aqueous solutions. Methods: The bench scale experimental setup was used to examine the factors affecting the ATL removal efficiency from synthetic wastewater; supporting electrolyte type, pH, contact time, PS concentration, Fe concentration, and ATL initial concentration. Results: Based on the results, ATL removal efficiency of 78.6% was reached under the optimum conditions of enhanced EF process by PS radical. The optimum conditions included NaCl (as a supporting electrolyte) dose of 0.5 g/L, pH 5, contact time of 60 minutes, PS dose of 0.15 g/L, Fe dose of 0.15 g/L, current density (CD) of 1.5 A/m2 , and ATL concentration of 40 mg/L. Kinetic model was following the second-order kinetics. Conclusion: The studied advanced oxidation process (AOP) can effectively remove ATL from aqueous solutions. Therefore, it can be used as an effective technique for removing other organic matter from the wastewater.

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Performance indicators for a holistic evaluation of catalyst-based degradation—A case study of selected pharmaceuticals and personal care products (PPCPs)

Cited by 31 publications

References 160 publications

Biochar-mediated removal of pharmaceutical compounds from aqueous matrices via adsorption

Biochar-mediated removal of pharmaceutical compounds from aqueous matrices via adsorption

Comparative study of electro‐Fenton and photoelectro‐Fenton processes using a novel photocatalytic fuel cell electro‐Fenton system with g‐C₃N₄@N‐TiO₂ and Ag/CNT@CF as electrodes

Enhanced electro-Fenton processes by persulfate radical for atenolol oxidation from aqueous solution

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Performance indicators for a holistic evaluation of catalyst-based degradation—A case study of selected pharmaceuticals and personal care products (PPCPs)

Cited by 31 publications

References 160 publications

Biochar-mediated removal of pharmaceutical compounds from aqueous matrices via adsorption

Biochar-mediated removal of pharmaceutical compounds from aqueous matrices via adsorption

Comparative study of electro‐Fenton and photoelectro‐Fenton processes using a novel photocatalytic fuel cell electro‐Fenton system with g‐C3N4@N‐TiO2 and Ag/CNT@CF as electrodes

Enhanced electro-Fenton processes by persulfate radical for atenolol oxidation from aqueous solution

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Comparative study of electro‐Fenton and photoelectro‐Fenton processes using a novel photocatalytic fuel cell electro‐Fenton system with g‐C₃N₄@N‐TiO₂ and Ag/CNT@CF as electrodes