Phenol Adsorption from Simulated Wastewater on Rice Husk Activated Carbon and Granular Activated Carbon
Background: Phenol has been classified as hazardous pollutant and its presence in natural water is considered as a serious threat to human health and overall water quality. The major source of phenol pollution in the aquatic environment is wastewater from petroleum and petrochemical industries. O...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Alexandria University
2014-12-01
|
| Series: | Journal of High Institute of Public Health |
| Subjects: |
| _version_ | 1818339439957508096 |
|---|---|
| author | Riham Ali Hazzaa |
| author_facet | Riham Ali Hazzaa |
| author_sort | Riham Ali Hazzaa |
| collection | DOAJ |
| description | Background: Phenol has been classified as hazardous pollutant and its presence in natural
water is considered as a serious threat to human health and overall water quality. The major
source of phenol pollution in the aquatic environment is wastewater from petroleum and
petrochemical industries. Objective: This study aims to investigate the adsorption efficiency of
granular activated carbon (GAC) and activated carbon prepared from rice husk (RHAC), a lowcost agricultural by product, in removing phenols from simulated wastewater. Methods: Batch
adsorption studies were conducted to study the effect of various parameters such as initial
concentration, agitation time, adsorbent dose and solution pH on phenol removal. Equilibrium
data were analyzed by the Langmuir, Freundlich, Temkin and Hurkin-Jura. The adsorption
kinetics were studied using the pseudo-first-order and second-order kinetics models. The
mechanism of the adsorption process was determined from the intraparticle diffusion model.
Results: The efficiency of GAC and RHAC on removal of phenol was 95% and 90%
respectively at an agitation time of 6 hr, a pH 6,150 rpm, an adsorbent dose of 5 g/L, initial
phenol concentration of 50 mg/L and a temperature of 20ºC. Acidic pH was more favorable for
the removal of phenol. Increasing initial concentration of phenol decreases the percentage
removal. The adsorption isotherm models fitted the data in the order: Freundlich > Langmuir >
Tempkin isotherms. The pseudo-second-order kinetic model best described the adsorption
process Conclusion: The results showed that the prepared activated carbon was an effective
adsorbent for removal of phenol as a low-cost and an alternative adsorbent. |
| first_indexed | 2024-12-13T15:27:02Z |
| format | Article |
| id | doaj.art-457b344b9ce746118cc873e8583ed677 |
| institution | Directory Open Access Journal |
| issn | 2357-0601 2357-061X |
| language | English |
| last_indexed | 2024-12-13T15:27:02Z |
| publishDate | 2014-12-01 |
| publisher | Alexandria University |
| record_format | Article |
| series | Journal of High Institute of Public Health |
| spelling | doaj.art-457b344b9ce746118cc873e8583ed6772022-12-21T23:40:19ZengAlexandria UniversityJournal of High Institute of Public Health2357-06012357-061X2014-12-01442778710.21608/JHIPH.2014.20333Phenol Adsorption from Simulated Wastewater on Rice Husk Activated Carbon and Granular Activated CarbonRiham Ali Hazzaa0Petrochemical Department, Faculty of Engineering, Pharos University in Alexandria, EgyptBackground: Phenol has been classified as hazardous pollutant and its presence in natural water is considered as a serious threat to human health and overall water quality. The major source of phenol pollution in the aquatic environment is wastewater from petroleum and petrochemical industries. Objective: This study aims to investigate the adsorption efficiency of granular activated carbon (GAC) and activated carbon prepared from rice husk (RHAC), a lowcost agricultural by product, in removing phenols from simulated wastewater. Methods: Batch adsorption studies were conducted to study the effect of various parameters such as initial concentration, agitation time, adsorbent dose and solution pH on phenol removal. Equilibrium data were analyzed by the Langmuir, Freundlich, Temkin and Hurkin-Jura. The adsorption kinetics were studied using the pseudo-first-order and second-order kinetics models. The mechanism of the adsorption process was determined from the intraparticle diffusion model. Results: The efficiency of GAC and RHAC on removal of phenol was 95% and 90% respectively at an agitation time of 6 hr, a pH 6,150 rpm, an adsorbent dose of 5 g/L, initial phenol concentration of 50 mg/L and a temperature of 20ºC. Acidic pH was more favorable for the removal of phenol. Increasing initial concentration of phenol decreases the percentage removal. The adsorption isotherm models fitted the data in the order: Freundlich > Langmuir > Tempkin isotherms. The pseudo-second-order kinetic model best described the adsorption process Conclusion: The results showed that the prepared activated carbon was an effective adsorbent for removal of phenol as a low-cost and an alternative adsorbent.adsorptionphenolgranular activated carbonrice huskwastewater |
| spellingShingle | Riham Ali Hazzaa Phenol Adsorption from Simulated Wastewater on Rice Husk Activated Carbon and Granular Activated Carbon Journal of High Institute of Public Health adsorption phenol granular activated carbon rice husk wastewater |
| title | Phenol Adsorption from Simulated Wastewater on Rice Husk Activated Carbon and Granular Activated Carbon |
| title_full | Phenol Adsorption from Simulated Wastewater on Rice Husk Activated Carbon and Granular Activated Carbon |
| title_fullStr | Phenol Adsorption from Simulated Wastewater on Rice Husk Activated Carbon and Granular Activated Carbon |
| title_full_unstemmed | Phenol Adsorption from Simulated Wastewater on Rice Husk Activated Carbon and Granular Activated Carbon |
| title_short | Phenol Adsorption from Simulated Wastewater on Rice Husk Activated Carbon and Granular Activated Carbon |
| title_sort | phenol adsorption from simulated wastewater on rice husk activated carbon and granular activated carbon |
| topic | adsorption phenol granular activated carbon rice husk wastewater |
| work_keys_str_mv | AT rihamalihazzaa phenoladsorptionfromsimulatedwastewateronricehuskactivatedcarbonandgranularactivatedcarbon |