✦ LIBER ✦

Adsorption of Hexavalent Chromium from Aqueous Solution by Using Activated Red Mud

✍ Scribed by Jyotsnamayee Pradhan; Surendra Nath Das; Ravindra Singh Thakur

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 68 KB
Volume: 217
Category: Article
ISSN: 0021-9797
DOI: 10.1006/jcis.1999.6288

No coin nor oath required. For personal study only.

✦ Synopsis

Adsorption by activated red mud (ARM) is investigated as a possible alternative to the conventional methods of Cr(VI) removal from aqueous synthetic solutions and industrial effluents. Adsorption characteristics suggest the heterogenous nature of the adsorbent surface sites with respect to the energy of adsorption. Various factors such as pH, contact time, Cr(VI) concentration, amount of adsorbent, and temperature are taken into account, and promising results are obtained. The applicability of the Langmuir as well as Freundlich adsorption isotherms for the present system is tested. The loading factor (i.e., milligrams of Cr(VI) adsorbed per gram of ARM) increased with initial Cr(VI) concentration, whereas a negative trend was observed with increasing temperature. The influence of the addition of anions on the adsorption of Cr(VI) depends on the relative affinity of the anions for the surface and the relative concentrations of the anions.

📜 SIMILAR VOLUMES

Adsorption of Phosphate from Aqueous Sol

Adsorption of Phosphate from Aqueous Solution Using Activated Red Mud

✍ Jyotsnamayee Pradhan; Jasobanta Das; Surendranath Das; Ravindra Singh Thakur 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 84 KB

Adsorption of phosphate (PO3-4) from aqueous solution on activated red mud (ARM) was studied as a function of time, pH, temperature, concentration of adsorbent and adsorbate in acetic acid-sodium acetate buffer medium. The adsorption of phosphate follows Langmuir as well as Freundlich adsorption iso

Removal of Organochlorine Pesticides fro

Removal of Organochlorine Pesticides from Aqueous Solution by Using Neutralized Red Mud

✍ Senar Ozcan; Ali Tor; Mehmet Emin Aydin 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 264 KB

## Abstract This work describes the potential usability of neutralized red mud for the removal of organochlorine pesticides (OCPs) from aqueous solutions. After examination on the adsorption capability of neutralized red mud for all studied OCPs, the experiments were performed by employing aldrin a

Adsorption of Chromium(III), Nickel(II),

Adsorption of Chromium(III), Nickel(II), and Copper(II) from Aqueous Solution by Activated Alumina

✍ Nilima S. Rajurkar; Ashok N. Gokarn; Kumaree Dimya 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 341 KB 👁 2 views

## Abstract The possible use of activated alumina powder (AAP) as adsorbent for Cr(III), Ni(II), and Cu(II) from synthetic solutions was investigated. The effect of various parameters on batch adsorption process such as pH, contact time, adsorbent dosage, particle size, temperature, and initial met

Adsorption of Reactive Red 120 from aque

Adsorption of Reactive Red 120 from aqueous solutions by cetylpyridinium-bentonite

✍ Ahmet Tabak; Nimet Baltas; Beytullah Afsin; Mustafa Emirik; Bulent Caglar; Erdal 📂 Article 📅 2010 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 172 KB

## Abstract **BACKGROUND:** The removal of Reactive Red 120 (RR 120) from aqueous solutions using cetylpyridinium modified Resadiye bentonite (CP‐bentonite) prepared by ion exchange was investigated with particular reference to the effects of temperature, pH and ionic strength on adsorption. **RES

Adsorption of lead(II) from aqueous solu

Adsorption of lead(II) from aqueous solution by activated carbon prepared from Eichhornia

✍ P Shekinah; K Kadirvelu; P Kanmani; P Senthilkumar; V Subburam 📂 Article 📅 2002 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 133 KB 👁 2 views

## Abstract Activated carbon prepared from __Eichhornia__ was used for the adsorptive removal of Pb(II) from aqueous solution. As the raw material for the preparation of the activated carbon is an aquatic weed, the production of this carbon is expected to be economically feasible. Parameters such a

The use of fly ash from the combustion o

The use of fly ash from the combustion of poultry litter for the adsorption of chromium(III) from aqueous solution

✍ Brian P Kelleher; Marguerite N O'Callaghan; Martin J Leahy; Thomas F O'Dwyer; J 📂 Article 📅 2002 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 126 KB 👁 1 views

## Abstract Fly ash, from the combustion of poultry litter, was assessed as an adsorbent for chromium(III) from aqueous solution. The adsorption process was studied as a function of temperature and time. Adsorption was best described by the Langmuir model. The adsorption of chromium(III) on the fly