Related Experiment Video
Updated: Aug 7, 2026

08:01
Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide
Published on: June 28, 2019
Methylphenols removal from water by low-cost adsorbents
1Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India.
Journal of Colloid and Interface Science
|June 29, 2006
Summary
Industrial waste can be converted into a carbonaceous adsorbent for removing methylphenols from wastewater. This novel adsorbent shows significant adsorption capacity, offering a sustainable solution for water treatment.
Area of Science:
- Environmental Chemistry
- Materials Science
Background:
- Methylphenols are common industrial pollutants.
- Effective and sustainable methods for methylphenol removal are needed.
Purpose of the Study:
- To investigate the adsorption of methylphenols on adsorbents derived from industrial waste.
- To evaluate the efficiency of a carbonaceous adsorbent from fertilizer industry waste.
Main Methods:
- Comparative adsorption studies using industrial waste-derived adsorbents.
- Batch adsorption experiments varying contact time, concentration, and temperature.
- Langmuir isotherm analysis and kinetic studies.
Main Results:
- Carbonaceous adsorbent from fertilizer waste showed high methylphenol adsorption (up to 88.5 mg/g).
- Other adsorbents (blast furnace sludge, dust, slag) exhibited lower adsorption.
- Adsorption is endothermic, follows Langmuir equation, and is pore diffusion-controlled.
Conclusions:
- Carbonaceous adsorbent derived from industrial waste is effective for methylphenol removal.
- This adsorbent is approximately 45% as efficient as activated charcoal.
- Potential for sustainable wastewater treatment applications.
Related Concept Videos
Physical Properties of Alcohols and Phenols
Alcohols are organic compounds in which a hydroxy group is attached to a saturated carbon. Phenols are a class of alcohols containing a hydroxy group attached to an aromatic ring. The physical properties of the alcohols and phenols are influenced by hydrogen bonding due to the oxygen–hydrogen dipole in the hydroxy functional group and dispersion forces between alkyl or aryl regions of alcohol and phenol molecules.
Alcohols possess a higher boiling point than aliphatic hydrocarbons of similar...
Alcohols possess a higher boiling point than aliphatic hydrocarbons of similar...
Hydrolysis of Chlorobenzene to Phenol: Dow Process
Simple aryl halides do not react with nucleophiles under normal conditions. However, the reaction can proceed under drastic conditions involving high temperatures and high pressure to give the substituted products. For example, chlorobenzene is converted to phenol using aqueous sodium hydroxide at 350 °C under high pressure by the Dow process. The reaction follows an elimination-addition mechanism involving a benzyne intermediate. Here, the chloride ion is eliminated to generate the benzyne...
Analyte Adsorption and Distribution
In certain chromatographic separations, solutes transfer between the mobile phase and the stationary phase via sorption, which typically refers to the process of adsorption. For many chromatographic systems, the sorption process often depends on the polarity of the compounds—an expression of the overall dipole moment within the molecule. During the separation process, there is competition between the solute and solvent for adsorption to the stationary phase. Highly polar compounds and solvents...
Ion Exchange
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or basic...
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...
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...
