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Effect of ammonia on the methanogenic diversity and activity in simulated MSW bioreactor landfills

Abstract : Assays with diluted leachate supplemented with different ammonia concentrations (0.8; 1.4; 2.3; 4.4 and 8.6 g TAN.L-1) were performed with reconstituted French waste in anaerobic conditions to better understand the effect of ammonia on methane production. Micro-organisms present in the initial leachate used for the assays were acclimatized to 2 g TAN.L-1 which explains that we obtained methane inhibition only when ammonia concentration increased at 4.4 or 8.6 g TAN.L-1. Micro-organisms responsible for methane production were similar in all assays: Methanosarcinaceae. When ammonia concentration was increased twofold or fourfold compared to initial concentration, archaea were scarcely detectable using the FISH-technique. For bacteria, a noticeable decrease was noticed between 4.4 g TAN.L-1 and 8.6 g TAN.L-1.
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Conference papers
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https://hal.inrae.fr/hal-02590129
Contributor : Migration Irstea Publications <>
Submitted on : Friday, May 15, 2020 - 2:00:26 PM
Last modification on : Saturday, May 16, 2020 - 2:40:16 AM

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  • HAL Id : hal-02590129, version 1
  • IRSTEA : PUB00023474

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V. Vigneron, C. Bureau, N. Bernet, T. Bouchez. Effect of ammonia on the methanogenic diversity and activity in simulated MSW bioreactor landfills. Proceedings Sardinia 2007, Eleventh International Waste Management and Landfill Symposium S. Margherita di Pula, Cagliari, ITA, 1-5 October 2007, 2007, pp.11. ⟨hal-02590129⟩

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