Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Precipitation and Co-precipitation

Precipitation and Co-precipitation

Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...

Coagulation

Coagulation

Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...

Electrodeposition

Electrodeposition

Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...

Enhanced Elimination of Poison

Enhanced Elimination of Poison

Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...

Extraction: Advanced Methods

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is formed in...

Factors Affecting Solubility

Factors Affecting Solubility

Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Exploration of Optimization Strategies for Locking Sulfur in 2D Layered/Polymer-Enveloped Cathode Composite for High Power Li-S Batteries.

Chemphyschem : a European journal of chemical physics and physical chemistry·2024

Same author

Wound healing activities of PVA-urea composites from Ormocarpum cochinchinense.

Natural product research·2023

Same author

Distribution of virulence genes and biofilm characterization of human isolates of Streptococcus agalactiae: A pilot study.

Colloids and surfaces. B, Biointerfaces·2023

Same author

Effective removal of organics from Bayer liquor through combined sonolysis and ozonation: Kinetics and mechanism.

Ultrasonics sonochemistry·2022

Same author

Preparation of magnesium silicate/carbon composite for adsorption of rhodamine B.

RSC advances·2022

Same author

Correction: Preparation of magnesium silicate/carbon composite for adsorption of rhodamine B.

RSC advances·2022

Search research articles

Related Experiment Video

Updated: Jun 25, 2026

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide

Published on: June 28, 2019

Removal of arsenic from aqueous solution using electrocoagulation.

N Balasubramanian¹, Toshinori Kojima, C Ahmed Basha

¹School of Engineering, Monash University, Sunway Campus, Selangor, Malaysia. n.balasubramanian@eng.monash.edu.my

Journal of Hazardous Materials

|February 24, 2009

Summary

Electrocoagulation effectively removes arsenic from water using a mild steel anode, achieving 94% efficiency. This study details the process mechanism and its dependence on operating conditions like applied charge and pH.

More Related Videos

Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.

Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.

Published on: September 1, 2017

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability

Published on: June 21, 2015

Related Experiment Videos

Last Updated: Jun 25, 2026

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide

Published on: June 28, 2019

Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.

Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.

Published on: September 1, 2017

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability

Published on: June 21, 2015

Area of Science:

Environmental Science
Water Treatment Engineering
Electrochemistry

Background:

Arsenic contamination in aqueous solutions poses significant environmental and health risks.
Effective removal of arsenic is crucial for ensuring safe drinking water supplies.
Electrocoagulation is a promising technology for water purification.

Purpose of the Study:

To investigate the efficiency of electrocoagulation for arsenic removal from aqueous solutions.
To understand the underlying electrocoagulation mechanism for arsenic removal.
To evaluate the influence of operating parameters on arsenic removal efficiency.

Main Methods:

Electrocoagulation experiments were performed using a mild steel sacrificial anode.
A wide range of operating conditions were explored to determine optimal removal efficiency.
The electrocoagulation mechanism was studied by analyzing the effects of applied charge and electrolyte pH.
Experimental data were fitted to adsorption isotherm models.

Main Results:

A maximum arsenic removal efficiency of 94% was achieved under optimized conditions.
The study developed a mechanism to explain arsenic removal via electrocoagulation.
Applied charge and electrolyte pH were identified as key factors influencing removal efficiency.
Adsorption isotherm models were used to describe the electrocoagulation process.

Conclusions:

Electrocoagulation with a mild steel anode is a highly effective method for arsenic removal.
Understanding the electrocoagulation mechanism provides insights for process optimization.
The findings contribute to the development of efficient arsenic remediation technologies.