Phosphoric acid activation of sugarcane bagasse for removal of o-toluidine and benzidine

4th International Conference on Civil and Environmental Engineering for Sustainability

地球科学;生态环境科学;经济学

Adib, M.R.M.^1 ; Attahirah, M.H.M.N.^1 ; Amirza, A.R.M.^1

Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), Batu Pahat, Johor

86400, Malaysia^1

关键词: Adsorption process;    Chemical treatments;    Environmental-friendly;    High porosity;    Low-cost adsorbents;    Optimum value;    Phosphoric acid activation;    Sugar-cane bagasse;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/140/1/012029/pdf
DOI  :  10.1088/1755-1315/140/1/012029

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In the effort to find alternatives for low cost adsorbent, activated carbon using sugarcane bagasse (SBAC) has been introduced in this study that has undergo chemical treatment using phosphoric acid to determine the effectiveness of adsorption process in removing o-toluidine and benzidine. Throughout this study, 92.9% of o-toluidine has been successfully removed by SBAC at optimum value of 1.1 g of dosage with contact time of 10 minutes and concentration of 10 mg/L. While benzidine was remove by 83.1% at optimum dosage of 1.1 g with 60 minutes of contact time and at 20 mg/L concentrations. Testing of SEM proves that SBAC has high porosity and comparable to CAC. In FTIR results, shows that CAC has high number of double bond while SBAC shows no double bond at all. Presence of double bond in CAC lead to increase in percentage of removal of adsorbate. After considering other factor such as cost, energy and environmental friendly, it shows that SBAC was considerable to replaced CAC.