arsenic removal optimization

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 ...

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 …

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

Arsenic removal technologies and future trends: A mini …

Arsenic removal from contaminated water using magnetite nanoparticles synthesized from iron (II)/nitrate solutions (Di Iorio et al., 2019). ... and high-efficiency removals, although it has some drawbacks, such as electrode passivation, EC reactors design optimization and large-scale power consumption applications. (Mohora et al., …

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 …

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.

(PDF) Arsenite removal from groundwater in a batch …

KEYWORDS Arsenite removal; groundwater; electrocoagulation; Fe ball anode; optimization Conventional treatment plants may employ several methods for removal of arsenic from water. Commonly used processes for the removal include coagulation/ filtration[6], lime softening,[7] adsorption,[8–10] ion exchange[11] and membrane …

Modeling and optimization of trivalent arsenic removal …

Globally, both industrialized and developing nations struggle with the issue of water pollution due to heavy metals. Human life depends on water, and when it is contaminated with dangerous heavy metals like arsenic, people's health suffers. The interactive influence of three independent sorption processes variables such as bio …

Optimization of Arsenic Removal Process in Waste Acid …

The arsenic removal rate increased from 73.85 to 82.78% with the reaction time increasing from 15 to 30 min, then fell after more than 30 min, and the fluctuation range was extensive. ... Optimization of Arsenic Removal Process in Waste Acid from Zinc Smelting Plant Based on Orthogonal Experiment. In: Siegmund, A., Alam, S., Grogan, J., …

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 ...

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 …

Optimization of arsenic ions adsorption and removal from …

Optimization removal of arsenic. To study the actions of ideal variables (dose, pH, and contact time) on adsorbing and remove of (As) by bentonite. Different doses of bentonite (100, 300, 500, 636 mg/L) were added to (50 ml) of the (As) solution (10 ppm) into the flasks, and the different pH values (2, 5, 8, and 10) were prepared for the ...

A systematic study of arsenic adsorption and …

Published: 22 September 2022. A systematic study of arsenic adsorption and removal from aqueous environments using novel graphene oxide functionalized UiO-66-NDC …

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 …

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 …

Optimization of arsenic removal from drinking water by

In 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/m(2)),

Optimization of Coagulation-Flocculation Process in Efficient Arsenic …

1. Introduction. Arsenic contamination in groundwater originating from anthropogenic phenomena or natural sources has been turned into a worldwide crisis [].Millions of people in different parts of the world are at risk of health problems through exposure to high levels of As via intake of As-rich groundwater [].Effects of long-term and …

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.

Optimization of Coagulation-Flocculation Process in …

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 …

Optimization of two-phase synthesis of Fe-hydrochar for arsenic removal …

Optimization of two-phase synthesis of Fe-hydrochar for arsenic removal from drinking water: Effect of temperature and Fe concentration ... increased arsenic removal, reduced concentrations of phenols in the final liquid, and improved stability of the sorbent composite. On the other hand, the temperature during Fe precipitation (phase II) …

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 ...

Modeling and Optimization of Arsenic (III) Removal from …

According to this figure, Arsenic (III) removal efficiency was 30.76% to 48.53%. It was increased, once the adsorbent dose rose from 6 to 8g/l and the contact time dropped from 50 to 20.

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 ...

Arsenite removal from groundwater in a batch

The removal efficiencies and operating costs were determined to be 99% and 0.01 $/m³ at the optimum operating conditions (a pHi of 8.5, 0.05 A, 4.94 min, dp of 9.24 mm, h of 7.49 cm, Qair of 9.98 ...

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 ...

(PDF) Arsenic removal from contaminated groundwater …

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 ...

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 ...

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 ...

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 …

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 …