research centers


Search results: Found 2

Listing 1 - 2 of 2
Sort by

Article
Removal of Phenol Compounds from Aqueous Solution Using Coated Sand Filter Media

Author: Asrar Al-Obaidy اسرار عبد الله حسن
Journal: Iraqi Journal of Chemical and Petroleum Engineering المجلة العراقية للهندسة الكيمياوية وهندسة النفط ISSN: 19974884/E26180707 Year: 2013 Volume: 14 Issue: 3 Pages: 23-31
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

Coated sand (CS) filter media was investigated to remove phenol and 4-nitrophenol from aqueous solutions in batch experiments. Local sand was subjected to surface modification as impregnated with iron. The influence of process variables represented by solution pH value, contact time, initial concentration and adsorbent dosage on removal efficiency of phenol and 4-nitrophenol onto CS was studied. Batch studies were performed to evaluate the adsorption process, and it was found that the Langmuir isotherm effectively fits the experimental data for the adsorbates better than the Freundlich model with the CS highest adsorption capacity of 0.45 mg/g for 4-nitrophenol and 0.25 mg/g for phenol. The CS was found to adsorb 85% of 4-nitrophenol and 65% for phenol at an initial concentration of 25 mg/ℓ


Article
REMOVAL OF TERASIL BLUE DYE FROM SYNTHETIC WASTEWATER USING LOW COST AGRO-BASED ADSORBENTS

Authors: Hatem Asal Gzar --- Noor Qassim Sabri
Journal: Al-Qadisiyah Journal for Engineering Sciences مجلة القادسية للعلوم الهندسية ISSN: 19984456 Year: 2018 Volume: 11 Issue: 2 Pages: 246-255
Publisher: Al-Qadisiyah University جامعة القادسية

Loading...
Loading...
Abstract

Natural materials that are readily available in large amounts in nature and easily accessible may be used as low cost additives. The aim of this study is to measure the susceptibility of these locally available materials, conocarpus plant, to improve the quality of wastewater discharged from textile industry. In addition to conocarpus plant, carbonized conocarpus and activated carbon were used as adsorbents in order to make a comparison, and to test which one of the three types give the best efficiency for removing dye. The ability of adsorbents to adsorb dye was studied using batch system; studied parameters were effect of pH, dose of adsorbents, time, and agitation speed. The experimental results showed that the maximum removal efficiency of conocarpus was found to be 87.5% at 50 rpm mixing speed, pH value 3 , mixing time 120 min and the dose of adsorbent was 0.25 g. The maximum removal efficiency for carbonized conocarpus was up to 98.7% at 150 rpm mixing speed, pH value 3 , mixing time was equal to 7 hours and the dose of sorbent was 1.25 g. For activated carbon the maximum removal efficiency was found to be 99% at mixing speed of 200 rpm, pH value 3 or 11, mixing time was equal to 7 hours and the dose of the sorbent was 1.25 g. The above removal efficiencies were obtained at temperature 20 °C.

Listing 1 - 2 of 2
Sort by
Narrow your search

Resource type

article (2)


Language

English (2)


Year
From To Submit

2018 (1)

2013 (1)