A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue
| Main Author: | |
|---|---|
| Language: | English |
| Published: |
University of Cincinnati / OhioLINK
2013
|
| Subjects: | |
| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=ucin1383812437 |
| id |
ndltd-OhioLink-oai-etd.ohiolink.edu-ucin1383812437 |
|---|---|
| record_format |
oai_dc |
| spelling |
ndltd-OhioLink-oai-etd.ohiolink.edu-ucin13838124372021-08-03T06:20:21Z A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue Contreras, Osmary C. Environmental Engineering Activated carbon adsorption chemical activation dyes methylene blue waste tires AbstractAlthough color represents a non-mandatory water quality standard, organic compounds such as dyes must be removed from wastewater before discharge. Dyes are considered to be aesthetic and toxic pollutants in water. Various water treatment processes have been studied in order to obtain an optimum removal of dyes. Adsorption by activated carbons (ACs) has demonstrated to be the technique of preference. However, the high cost of the precursor material and process for production could influence for its application. Therefore, it is necessary to find raw materials of low cost that requires limited processing and is easily available. In this study, chemical activation of waste tires for developing activated carbons was evaluated. Tires of 400 µm nominal size were impregnated with potassium hydroxide (KOH) in different w/w ratios (0:1, 1:1, 2:1, 3:1, 4:1 and 5:1) and two other parameters were selected in order to obtain the best conditions for the desirable carbon; One is the activation temperature (600, 700 and 800 °C) and the second is contact time during activation (1, 2 and 3 h). BET specific surface area and pore size distribution (PSD) for each carbon was determined. The activated carbon from waste tires with higher BET specific surface area and mesopore percentage was obtained with a KOH/tires (2/1), temperature 800 °C and activation time 1 h. Adsorption isotherm, kinetic studies and microcolumn experiments were conducted with the selected activated carbon from waste tires (ACWT) and commercial activated carbon (F400) for the removal of methylene blue (MB). ACWT has demonstrated to be an effective adsorbent in removing MB but with lower adsorption capacity than that of F400, suggesting further studies need to be conducted for enhancing the activation process of waste tires. 2013 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin1383812437 http://rave.ohiolink.edu/etdc/view?acc_num=ucin1383812437 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
| collection |
NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Environmental Engineering Activated carbon adsorption chemical activation dyes methylene blue waste tires |
| spellingShingle |
Environmental Engineering Activated carbon adsorption chemical activation dyes methylene blue waste tires Contreras, Osmary C. A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue |
| author |
Contreras, Osmary C. |
| author_facet |
Contreras, Osmary C. |
| author_sort |
Contreras, Osmary C. |
| title |
A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue |
| title_short |
A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue |
| title_full |
A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue |
| title_fullStr |
A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue |
| title_full_unstemmed |
A comparative study of tailored activated carbon from waste tires against commercial activated carbon (F400) for the removal of Methylene Blue |
| title_sort |
comparative study of tailored activated carbon from waste tires against commercial activated carbon (f400) for the removal of methylene blue |
| publisher |
University of Cincinnati / OhioLINK |
| publishDate |
2013 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1383812437 |
| work_keys_str_mv |
AT contrerasosmaryc acomparativestudyoftailoredactivatedcarbonfromwastetiresagainstcommercialactivatedcarbonf400fortheremovalofmethyleneblue AT contrerasosmaryc comparativestudyoftailoredactivatedcarbonfromwastetiresagainstcommercialactivatedcarbonf400fortheremovalofmethyleneblue |
| _version_ |
1719435126325116928 |