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Ammoniacal nitrogen removal using flamboyant pods (Delonix Regia) adsorbent for natural rubber wastewater treatment

Daud, Zawawi and Ahmad, Baharin and Awang, Halizah and Abubakar, Mahmoud Hijab and Nasir, Nazlizan and Tajarudin, Husnul Azan (2018) Ammoniacal nitrogen removal using flamboyant pods (Delonix Regia) adsorbent for natural rubber wastewater treatment. International Journal of Integrated Engineering, 10 (9). pp. 184-189. ISSN 26007916

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Abstract

Plant waste such as Delonix Regia Pods (DRP) have the potential to be used as adsorbents. A study of lignocellulose delonix regia pods was carried to assess ammoniacal nitrogen removal from natural rubber wastewater. Sample wastewater was taken from the rubber processing industry and characterization was carried out. Outcomes from the analysis shows that the ammoniacal nitrogen concentration was 66 mg/L and higher than the recommended wastewater discharge standards. Batch experiments were conducted on the effect of dose, pH, shaking speed and contact time parameters for optimum condition. The results revealed that the optimal dosage, pH, shaking speed and contact time is 4.5 g, pH 8, 150 rpm and 120 minutes with ammoniacal nitrogen removal efficiency of 74.3 % and the adsorption capacity of 1.22 mg/g. Pseudo second order kinetic model was found to fit the data better and the R2 obtained was 0.9992. From the study, it can be concluded that the media can be used for the removal of ammoniacal nitrogen in natural rubber wastewater and subsequently reduce environmental pollution. Hence, it can be sustainable and environmentally friendly.

Item Type: Article
Uncontrolled Keywords: Rubber wastewater; lignocellulose; adsorption; delonix regia pods
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD169-171 Environmental protection. Environmental geotechnology
Divisions: Faculty of Civil and Environmental Engineering > Department of Water and Environmental Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 30 Sep 2019 03:38
Last Modified: 30 Sep 2019 03:38
URI: http://eprints.uthm.edu.my/id/eprint/11776
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