Short Test Performance of Nitrogen Removal by Anammox Bacteria from Lake Koto Baru, Indonesia, Using Pumice as a Carrier

  • Zulkarnaini Zulkarnaini Department of Environmental Engineering, Faculty of Engineering, Universitas Andalas, Padang, Indonesia, 25163
  • Reri Afrianita Department of Environmental Engineering, Faculty of Engineering, Universitas Andalas, Padang, Indonesia, 25163
  • Mahdiah Zulfa Department of Environmental Engineering, Faculty of Engineering, Universitas Andalas, Padang, Indonesia, 25163
Keywords: Anammox, Lake Koto Baru, Pumice, Tropical ambient temperature

Abstract

Anaerobic ammonium oxidation (anammox) removes ammonium under anaerobic conditions into nitrogen gas using nitrite as an electron acceptor by anammox bacteria belonging to the phylum Planctomycetota. The performance of nitrogen removal depends on the species and operating conditions. The purpose of this study was to compare the performance of anammox bacteria from Lake Koto Baru, Indonesia, in nitrogen removal with Candidatus Brocadia sinica at tropical ambient temperature using pumice as a carrier. This experiment utilized two up-flow anaerobic sludge blanket reactors with artificial wastewater containing ammonium and nitrite concentrations of 100 mg-N L-1 and a hydraulic retention time of 12 hours for 31 days. Run 1 inoculated with Candidatus Brocadia sinica; Run 2 used enriched anammox bacteria from Lake Koto Baru, Indonesia. The concentrations of ammonium, nitrite, and nitrate were analyzed twice a week using Nessler's method, spectrophotometry, and screening UV spectrophotometry, respectively. The best nitrogen removal performance occurs in Run 2 using anammox bacteria from Lake Koto Baru, where the maximum nitrogen removal rate, ammonium conversion efficiency, and nitrogen removal efficiency were 0.395 kg-N m-³ d-1, 98.12 %, and 92.6 % of 0.341 kg-N m-³ d-1, 87 %, 79.8 % of Run 1. These results suggest that anammox bacteria from Lake Koto Baru are highly effective for nitrogen removal in tropical climates and are applicable for wastewater treatment systems in similar regions.

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Published
2025-12-01
How to Cite
Zulkarnaini, Z., Afrianita, R. and Zulfa, M. (2025) “Short Test Performance of Nitrogen Removal by Anammox Bacteria from Lake Koto Baru, Indonesia, Using Pumice as a Carrier ”, Journal of Tropical Biodiversity and Biotechnology, 10(4), p. jtbb14024. doi: 10.22146/jtbb.14204.
Section
Research Articles