Removal of chromium from water using pea waste - a green approach

被引：31

作者：

Anwar, Jamil ^{[1
]}

Shafique, Umer ^{[1
]}

Waheed-uz-Zaman ^{[1
]}

Salman, Muhammad ^{[1
]}

Hussain, Zaib ^{[1
]}

Saleem, Maria ^{[1
]}

Shahid, Naeema ^{[1
]}

Mahboob, Saliha ^{[1
]}

Ghafoor, Samina ^{[1
]}

Akram, Mehwish ^{[1
]}

Rehman, Rabia ^{[1
]}

Jamil, Nadia ^{[2
]}

机构：

[1] Univ Punjab, Inst Chem, Lahore 54590, Pakistan

[2] Univ Punjab, Coll Earth & Environm Sci, Lahore 54590, Pakistan

来源：

GREEN CHEMISTRY LETTERS AND REVIEWS | 2010年 / 3卷 / 03期

关键词：

biosorption; chromium; pea pods; Langmuir isotherm; Freundlich isotherm; Temkin isotherm; AQUEOUS-SOLUTIONS; BIOMASS; BIOSORPTION; CR(III); CR(VI); CARBON; IONS;

D O I：

10.1080/17518251003730833

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Agro-waste materials have carboxylic and phenolic groups that play the main role in metal adsorption. The advantages of these materials include easy availability, low cost, and reasonable metal removal capacity. One of the materials (usually considered as waste) is pea waste (pods). Present work comprises adsorption of chromium from aqueous solution using powder of pods of garden peas (Pisum sativum) in batch. Important parameters like adsorbent dose, pH, contact time, and agitation speed were studied. Adsorption equilibrium was explained by Langmuir, Freundlich, and Temkin isotherms. Maximum chromium uptake (q(m)) was 3.56 mg/g of adsorbent. Heat of adsorption, as evaluated by Temkin isotherm was 1.96 kJ/mol. It is proposed that pea pods can be an effective and environmentally benign (green) adsorbents for removal of chromium from industrial effluents and waste waters.

引用

页码：239 / 243

页数：5

共 17 条

[1] Low cost sorbents for the removal of methyl parathion pesticide from aqueous solutions [J].