Skip to main content
User Image

Dr. Mahtab Ahmad

Assistant Professor

Faculty Member

كلية علوم الأغذية والزراعة
Pedology Lab 103, Soil Sciences Department, College of Food and Agricultural Sciences, King Saud University
publication
Journal Article
2016

High-efficiency remediation of cadmium (Cd2+) from aqueous solution using poultry manure– and farmyard manure–derived biochars

Kong, Muhammad Idrees, Saima Batool, Qaiser Hussain, Hidayat Ullah, Mohammad Ibrahim Al-Wabel, Mahtab Ahmad & Jie . 2016

Farmyard manure (FYM-BC) and poultry manure (PM-BC) derived biochars were applied as adsorbents to remove Cd2+ fromwater. Results indicated that PM-BC was amore efficient adsorbent than FYM-BC at all experimental conditions. Maximum Cd2+ adsorption was observed at pH 4, temperature 318 K and contact time 1 h, regardless of biochar type. The Langmuir model predicted maximum adsorption capacity of 90.09 mg g−1 for PM-BC. The data fitting to pseudo-second-order model proposed chemisorption of Cd2+ onto biochars. Thermodynamics indicated that adsorption was spontaneous and endothermic. Post-adsorption analysis provided evidences of strong chemical interactions between biochars’ functional groups and Cd2+ ions.

Volume Number
51
Issue Number
14
Magazine \ Newspaper
Separation Science and Technology
Pages
2307-2317
more of publication
publications

Date palm biochar (BC) was prepared at two pyrolysis temperatures of 300 °C (BC-300) and 700 °C (BC-700) as sorbents for removing Cd from aqueous solutions in batch experiments.

by Adel Usman, Abdulazeem Sallam, Ming Zhang, Meththika Vithanage, Mahtab Ahmad, Abdullah Al-Farraj, Yong Sik Ok, Adel Abduljabbar, Mohammad Al-Wabel
2016
publications

Farmyard manure (FYM-BC) and poultry manure (PM-BC) derived biochars were applied as adsorbents to remove Cd2+ fromwater. Results indicated that PM-BC was amore efficient adsorbent than FYM-BC at…

by Muhammad Idrees, Saima Batool, Qaiser Hussain, Hidayat Ullah, Mohammad Ibrahim Al-Wabel, Mahtab Ahmad & Jie Kong
2016
publications

This study was conducted to identify and quantify polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in soil samples collected from selected industrial areas in…

by Al-Wabel, M.I., El-Saeid, M.H., Usman, A.R.A., Al-Turki, A.M., Ahmad, M., Hassanin, A.S., El-Naggar, A.H., Al-Enazi, K.K.H
2016