Nanofiltration for Arsenic Removal: Challenges, Recent …
Arsenic (As) removal is of major significance because inorganic arsenic is highly toxic to all life forms, is a confirmed carcinogen, and is of significant environmental concern. ... method of synthesis of the membrane, and their optimization. The rest of the review will be focused on the recent trends in the field of As removal by the ...
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Arsenic removal from aqueous solution: A comprehensive …
2.4. Scientometric analysis. The scientometric analysis, a method applied to identify the research priority in any field of science, was applied to identify the research needs in As removal from aqueous solution ( Wu et al., 2020 ). Literature was searched using the keywords "Arsenic", "removal" and "water" in the Scopus.
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Optimization of Coagulation-Flocculation Process in …
T. Optimization of Coagulation-Flocculation Process in ... effective pH range for arsenic removal was recognized to be 5–7 and 5–8 for aluminum and. Molecules 2022, 27, 7953 3 of 15
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Technologies for Arsenic Removal from Water: …
Conventionally applied techniques to remove arsenic species include oxidation, coagulation-flocculation, and membrane techniques. Besides, progress has …
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Optimization of arsenic removal from drinking water by
The model predicted for a maximum removal of arsenic at the optimum operating conditions (112.3g/L, 5.64A/m(2) and 5min) after the EC process was 93.86% which corresponded to effluent arsenic ...
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An assessment on removal performance of arsenic with …
In this current research, batch experiments were performed toward the characterization and optimization of arsenic removal by Turbinaria vulgaris. The four process parameters, that is, initial solution pH (3–5), initial arsenic ion concentration (20–100 mg/L), T. vulgaris dosage (0.10.5 g/L), and temperature (293–313 K), were …
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Optimization of Arsenic Removal from Aqueous …
tration of arsenic in drinking water to 10 μg/L.8 Arsenic exists mostly in two inorganic forms as H 3 AsO 3 and H 3 AsO 4, with the dominant arsenic species in groundwater being As(III), which is 60 times more toxic than As(V).9 Therefore, there is a stringent need to develop highly efficienttechnologies to remove arsenic
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Arsenic removal performance and mechanism from water …
Arsenic removal experiments were performed by the batch equilibrium method at room temperature (25 ± 1 °C) with various initial arsenic concentrations and an adsorbent dose of 0.5 g/L ...
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Fluoride and Arsenic Removal by Nanofiltration Technology …
With this optimal arrangement, the NF system obtained fluoride and arsenic removal efficiencies of 70∼73% and 92∼94% respectively, a preferable permeate flux of 73.37 L h−1 m2 and acceptable ...
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Comparison of arsenic(V) removal with different lead …
Process optimization of arsenic removal with lead oxide3.2.1. Effect of the addition ways of lead oxide. Arsenic(V) could be effectively removed using lead oxide as a reagent of arsenic removal. As(V) removal efficiency was over 99.9% and As(V) concentration decreased from 200 mg/L to <0.01 mg/L at Pb/As molar ratio of 2.12 (Table …
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Optimization of Process Parameters for Removal of Arsenic …
In this study, arsenate removal by apricot stone-based activated carbon (IAC) modified with iron (oxy-hydr)oxides was carried out. For this purpose, hybrid adsorbents based on Fe2+-loaded activated carbon (IAC–Fe(II)) and Fe3+-loaded activated carbon (IAC–Fe(III)) were synthesized by precipitation method. A three-level, three-factor …
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Optimization of arsenic removal from an acid mine drainage …
This study aims at optimizing the arsenic removal performance of a sulfidogenic anaerobic MBR treating acid mine drainage (AMD). The feed sulfate concentration was kept constant at 2,000 mg/L and ethanol concentration was decreased steadily from 1,500 mg COD/L to 500 mg COD/L. Metal concentrations were kept at 75 …
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Arsenic removal from contaminated groundwater by …
A simulation software (ARRPA) has been developed in Microsoft Visual Basic platform for optimization and control of a novel membrane-integrated arsenic separation plant in the backdrop of absence of such software. The user-friendly, menu-driven software is based on a dynamic linearized mathematical model, developed for the …
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A bio-inspired membrane for arsenic removal
A key innovation by Galiano et al. is to use a microporous membrane with a pore size of 0.14 μm to selectively pick up soluble arsenic species for their removal 5. It …
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Optimization of arsenic removal with Fe3O4@Al2O3@Zn-Fe …
Download Citation | Optimization of arsenic removal with Fe3O4@Al2O3@Zn-Fe LDH as a new magnetic nano adsorbent using Box-Behnken design | This work is focused on arsenic removal using Fe 3 O 4 ...
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Arsenic removal in aqueous solutions using FeS2
Abstract. This study tested the technical feasibility of pyrite and/or persulfate oxidation system for arsenic (As) removal from aqueous solutions. The effects of persulfate on As removal by the pyrite in the integrated treatment were also investigated. Prior to the persulfate addition into the reaction system, the physico-chemical interactions ...
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Process optimization for arsenic removal of fine coal in …
A pollution-free dry arsenic removal method from coal prior to combustion was proposed. • The collaborative effect of vibration amplitude, frequency and air velocity were studied. • The feasibility of separation for easily mismatched particles was explored. • 90.29% of arsenic in raw coal was concentrated into the tailing product.
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Optimization of Arsenic Removal from Aqueous Solutions …
The paper reports on the performances of cross-linked amidoxime hosted into mesoporous silica (AMOX) in the removal of As(III) and As(V). The optimum pH for sorption of As(III) and As(V) was pH 8 and pH 5, respectively. The PFO kinetic model and the Sips isotherm fitted the best the experimental data. The thermodynamic parameters were evaluated …
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Arsenic removal performance and mechanism from …
This research provides a new strategy for the development of arsenic immobilization materials and the results confirm that iron hydroxide nanopetalines could …
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Optimization of arsenic ions adsorption and removal …
Optimization removal of arsenic. To study the actions of ideal variables (dose, pH, and contact time) on adsorbing and remove of (As) by bentonite.
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Optimization of arsenic removal from drinking water by
AbstractIn this investigation, arsenic removal from drinking water using electrocoagulation (EC) in a batch mode was studied by response surface methodology (RSM). The RSM was applied to optimize the operating variables viz. current density (CD, A/m2), operating time (tEC, min) and arsenic concentration (Co, μg/L) on arsenic …
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Optimization of Arsenic Removal from Aqueous …
In summary, a prospective process successfully shows arsenic removal and immobilization from smelting wastewater, and further demonstrates the potential for the efficient and affordable disposal of wastewater.
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Arsenic removal from water and soils using pristine and …
Further optimization and economic feasibility analyses are required before successful commercial and industrial applications could be launched, which would pave the way for the sustainable mitigation of As pollution at a global scale. ... Mohan D, Pittman CU (2007) Arsenic removal from water/wastewater using adsorbents—a critical review. J ...
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Arsenic removal from solution using nano-magnetic …
These variables including pH (3 to 11), concentration of arsenic in solution (1000 to 4000 µg/L), concentration of nanoparticles (1 to 5 g/L), and time (15 to 195 min) …
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Arsenic Removal from Natural Waters by Adsorption or Ion …
The Environmental Sustainability Assessment of the adsorption and ion-exchange processes for arsenic removal was the focus of this work. The pursued goals were to determine the impact of regenerating the activated alumina used as adsorbent and the comparison of the environmental performance of two ion-exchange resins. Additional …
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Arsenic removal by electrocoagulation process: Recent trends and
Arsenic removal by EC in the presence of iron anode is complex, due to the generation of ferrous ions in the electrolytic solution. Ferrous ions are more soluble than ferric ions. Thus, the arsenic removal is retarded by the presence of ferrous ions at the initial stages of electrolysis. ... Optimization of electrocoagulation process for the ...
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Electrocoagulation treatment of arsenic in wastewaters: A comprehensive
Electrocoagulation (EC) has displayed a great potential as an effective and environmentally friendly method to remove arsenic from wastewaters. This review summarizes the recent development of arsenic removal in EC process including the effects of primary operating parameters, optimization of the EC performance, as well as the …
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Statistical optimization of arsenic removal from synthetic …
The effects of studied parameters were determined by a 2 3 factorial design, whereas treatment time had a positive effect and current intensity had a negative effect on arsenic removal efficiency. With a p-value of 0.1629 and a confidence of level 99%, the type of electrode material did not have a significant effect on arsenic removal ...
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Optimization of Coagulation-Flocculation Process in Efficient Arsenic …
Elevated arsenic (As) contamination in water, especially groundwater, has been recognized as a major problem of catastrophic proportions. This work explores As(V) removal via the coagulation-flocculation process by use of ferric chloride coagulant and polyacrylamide k16 co-coagulant as a first time. The effects of major operating variables …
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Arsenic removal from solution using nano …
Request PDF | Arsenic removal from solution using nano-magnetic compound: optimization modeling by response surface method | This study was aimed to investigate the effectiveness of compounds ...
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