UPM Institutional Repository

Comparison of lime powder and caustic soda as a pre-treatment for ammonia-nitrogen removal from a scheduled waste leachate


Citation

Mat Lazim, Nurul Hanira and Che Man, Hasfalina and Ariffin, Mohd Sani and Mohd Yusof, Mohd Rashid (2014) Comparison of lime powder and caustic soda as a pre-treatment for ammonia-nitrogen removal from a scheduled waste leachate. In: International Conference on Mathematics, Engineering and Industrial Applications 2014 (ICoMEIA 2014), 28-30 May 2014, Penang, Malaysia. (pp. 1-8).

Abstract

Studies on leachate taken from scheduled waste landfill are limited. This might be due to the complex characteristics of the leachate from scheduled waste landfill compared to other types of landfills. Leachate is known as a strong wastewater in terms of its organic matter and ammonia content. In this study, a pre-treatment on the removal of ammonia-nitrogen (NH3-N) by coagulation on a leachate sample taken from a Scheduled Waste Landfill (SWL) is reported. The coagulation was performed using lime (Ca (OH)2), and caustic soda (NaOH) with varying pH and amount of coagulant. A different dosage of Ca (OH)2, and NaOH was applied and the removal efficiency using both coagulants were investigated to find the most optimum dosage for NH3-N removal. Results showed that the percentage of NH3-N removal was relatively the same for both Ca (OH)2 and NaOH which was up to 45% and 48%, respectively. The optimum pH and dosage of coagulant for the removal process using Ca (OH)2 was pH=12.40±0.02 and 6gL−1, respectively while with NaOH was pH=12.83±0.02 and 8 gL−1, respectively. A small difference in the removal of NH3-N with a less dosage of coagulant used in the study suggests that lime (Ca(OH)2), is a better choice for the pre-treatment process.


Download File

[img]
Preview
PDF (Abstract)
Comparison of lime powder and caustic soda as a pre-treatment for ammonia-nitrogen removal from a scheduled waste leachate.pdf

Download (49kB) | Preview

Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1063/1.4915854
Publisher: AIP Publishing LLC
Keywords: Ammonia-nitrogen; Caustic soda; Leachate; Lime; Scheduled waste
Depositing User: Nabilah Mustapa
Date Deposited: 27 Sep 2017 11:09
Last Modified: 27 Sep 2017 11:09
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1063/1.4915854
URI: http://psasir.upm.edu.my/id/eprint/57470
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item