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Abstract

In this study, a lab-scale Partial Nitritation Sequencing Batch Reactor (PNSBR) was implemented for treating high-ammonium old landfill leachate to yield an appropriate NO2—N/ NH4+-N ratio from 1/1 to 1.32/1 mixture as a pretreatment for subsequent Anammox. The objective of this study was to determine the optimal hydraulic retention time (HRT) at different influent ammonia concentrations for 210 days. The experimental results showed that with the influent ammonia concentrations of 500, 1000, 1500 and 2000 mg/L, HRT is 12 h, 21 h, 30 h and 48 h, respectively. The range of free ammonia (FA) concentration from 17 to 44 mg/L completely inhibited nitrite oxidizing bacteria (NOB) for long time operation. The COD removal efficiency was very low (6±2) %.



Author's Affiliation
  • Nhat The Phan

    Google Scholar Pubmed

  • Van Thi Thanh Truong

    Google Scholar Pubmed

  • Son Thanh Le

    Google Scholar Pubmed

  • Biec Nhu Ha

    Google Scholar Pubmed

  • Dan Phuoc Nguyen

    Google Scholar Pubmed

Article Details

Issue: Vol 19 No 4 (2016)
Page No.: 39-49
Published: Dec 31, 2016
Section: Sciences of Earth and Environment - Research article
DOI: https://doi.org/10.32508/stdj.v19i4.592

 Copyright Info

Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Phan, N., Truong, V., Le, S., Ha, B., & Nguyen, D. (2016). Partial nitritation treating nitrogen in old landfill leachate. Science and Technology Development Journal, 19(4), 39-49. https://doi.org/https://doi.org/10.32508/stdj.v19i4.592

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