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Ammonia-Nitrogen Recovery from Synthetic Solution using Agricultural Waste Fibers


  • Department of Chemical Engineering, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia
  • Centre for Water Advanced Technologies and Environmental Research (CWATER), College of Engineering, Swansea University, Swansea SA2 8PP, United Kingdom
  • Department of Mechanical and Manufacturing Engineering, Faculty of Engineering Universiti Malaysia Sarawak (UNIMAS) Kota Samarahan, Malaysia


Background/Objectives: In this study, modification of Empty Fruit Bunch (EFB) fibers as a means to recover ammonia nitrogen from a synthetic solution was investigated. Methods: The EFB fiber was modified using sodium hydroxide. Adsorption-desorption studies of ammonia nitrogen into the modified EFB fiber were investigated Findings: The increase in adsorption capacity was found to be proportional with the increase of pH up to 7, temperature and ammonia concentration. The maximum adsorption capacity is 0.53-10.89 mg/g. The attachment of ammonia nitrogen involves ion exchange-chemisorption. The maximum desorption capacity of 0.0999 mg/g. Applications: This study can be used as a baseline for designing a low cost adsorbent system for ammonia nitrogen recovery drainage and industrial wastewater as well as EFBs-palm oil mill effluent composting.


Ammonia Nitrogen, Agricultural Waste, Desorption, Empty Fruit Bunch, Nutrient Recovery.

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