Ammoniacal nitrogen and COD removal from semi-aerobic landfill leachate using a composite adsorbent: Fixed bed column adsorption performance

作者：Halim Azhar Abdul^*; Aziz Hamidi Abdul; Johari Megat Azmi Megat; Ariffin Kamar Shah; Adlan Mohd Nordin

来源：Journal of Hazardous Materials, 2010, 175(1-3): 960-964.

DOI：10.1016/j.jhazmat.2009.10.103

• Composite adsorbent
• COD
• Landfill leachate
• Ammoniacal nitrogen
• Column study

The performance of a carbon-mineral composite adsorbent used in a fixed bed column for the removal of ammoniacal nitrogen and aggregate organic pollutant (COD), which are commonly found in landfill leachate, was evaluated. The breakthrough capacities for ammoniacal nitrogen and COD adsorption were 4.46 and 3.23 mg/g, respectively. Additionally, the optimum empty bed contact time (EBCT) was 75 min. The column efficiency for ammoniacal nitrogen and COD adsorption using fresh adsorbent was 86.4% and 92.6%, respectively, and these values increased to 90.0% and 93.7%. respectively, after the regeneration process.

• 出版日期2010-3-15