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  • Title: Nitrite accumulation in continuous-flow partial autotrophic denitrification reactor using sulfide as electron donor.
    Author: Liu C, Li W, Li X, Zhao D, Ma B, Wang Y, Liu F, Lee DJ.
    Journal: Bioresour Technol; 2017 Nov; 243():1237-1240. PubMed ID: 28720275.
    Abstract:
    The nitrite accumulation in handling nitrate and sulfide-laden wastewater in a continuous-flow upflow anaerobic sludge blanket reactor was studied. At sulfide/nitrate-nitrogen ratio of 1:0.76 and loading rates of 1.2kg-Sm-3d-1 and 0.4kg-Nm-3d-1, the elemental sulfur and nitrite accumulation rates peaked at 90% and 70%, respectively, with Acrobacter, Azoarcus and Thauera presenting the functional strains in the studied reactor. The accumulated nitrite was proposed a promising feedstock for anaerobic ammonia oxidation process. An integrated partial autotrophic denitrification-anaerobic ammonia oxidation-aeration process for handling the ammonia and sulfide-laden wastewaters is proposed for further studies.
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