Zaini, Mohd. Shaiful and Ismail, Nadirah and Lim, Chi Kim and Neoh, Chin Hong and Lam, Chi Yong and Aris, Azmi and Abdul Majid, Zaiton and Abdul Manan, Fazilah and Ibrahim, Zaharah (2015) Optimisation of biostructure for the adsorption of petrochemical wastewater using statistical approach. Clean Technologies And Environmental Policy, 17 (1). pp. 249-256. ISSN 1618-954X
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Official URL: http://dx.doi.org/10.1007/s10098-014-0759-y
Abstract
In this study, a newly developed cement-based material, Biostructure was used for the treatment of petrochemical wastewater with high chemical oxygen demand (COD) content (15,000-20,000 mg/L). Biostructure was prepared by mixing aggregates, sand, granular activated carbon (GAC), blast furnace slag (BFS), zeolite and ordinary Portland cement in specified ratio. Optimisation of its components mix ratio was carried out using statistical approach. The study shows that Biostructure with a porosity of 21 % and compressive strength of 8.4 MPa under optimised components mix ratio (77.00 % aggregates, 10.00 % sand, 10.00 % cement, 1.00 % GAC, 1.00 % zeolite and 1.00 % BFS) was able to remove the COD of petrochemical wastewater up to 75.00 % (13,000 mg/L COD) in 16 days. The adsorption equilibrium was found to be better fitted to the Langmuir isotherm model compared to the Freundlich model. The study indicates that the Biostructure prepared is a potential adsorbent for the treatment of petrochemical wastewater.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | chemical oxygen demand, freundlich, langmuir, petrochemical wastewater |
| Subjects: | Q Science > QD Chemistry T Technology > TP Chemical technology |
| Divisions: | Science |
| ID Code: | 58712 |
| Deposited By: | Haliza Zainal |
| Deposited On: | 04 Dec 2016 04:08 |
| Last Modified: | 17 Dec 2021 08:20 |
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