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Partial Nitrification in a Sequencing Moving Bed Biofilm Reactor (SMBBR) with Zeolite as Biomass Carrier: Effect of Sulfide Pulses and Organic Matter Presence

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Departamento de Ingeniería Química, Universidad de Santiago de Chile, Santiago 9170022, Chile
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Facultad de Ingeniería, Universidad Autónoma de Chile, Santiago 7500912, Chile
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Departamento de Ingeniería Química, Universidad de La Frontera, Temuco 4811230, Chile
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Escuela de Ingeniería Química, Pontificia Universidad Católica de Valparaíso, Valparaíso 2340025, Chile
*
Author to whom correspondence should be addressed.
Academic Editor: Jesus Gonzalez-Lopez
Water 2021, 13(18), 2484; https://doi.org/10.3390/w13182484
Received: 16 August 2021 / Revised: 30 August 2021 / Accepted: 8 September 2021 / Published: 10 September 2021
(This article belongs to the Section Wastewater Treatment and Reuse)
This work aimed to achieve partial nitrification (PN) in a Sequencing Moving Bed Biofilm Reactor SMBBR with zeolite as a biomass carrier by using sulfide pulses in the presence of organic matter as an inhibitor. Two conditions were evaluated: sulfide (HS) = 5 mg S/L and vvm (air volume per liquid volume per minute, L of air L−1 of liquid min−1) = 0.1 (condition 1); and a HS = 10 mg S/L and a vvm = 0.5 (condition 2). The simultaneous effect of organic matter and sulfide was evaluated at a Chemical Oxygen Demand (COD) = 350 mg/L and HS = 5 mg S/L, with a vvm = 0.5. As a result, using the sulfide pulse improved the nitrite accumulation in both systems. However, Total Ammonia Nitrogen (TAN) oxidation in both processes decreased by up to 60%. The simultaneous presence of COD and sulfide significantly reduced the TAN and nitrite oxidation, with a COD removal yield of 80% and sulfide oxidation close to 20%. Thus, the use of a sulfide pulse enabled PN in a SMBBR with zeolite. Organic matter, together with the sulfide pulse, almost completely inhibited the nitrification process despite using zeolite. View Full-Text
Keywords: sulfide doses; NOB inhibition; organic matter; AOB inhibition; zeolite sulfide doses; NOB inhibition; organic matter; AOB inhibition; zeolite
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MDPI and ACS Style

Huiliñir, C.; Fuentes, V.; Estuardo, C.; Antileo, C.; Pino-Cortés, E. Partial Nitrification in a Sequencing Moving Bed Biofilm Reactor (SMBBR) with Zeolite as Biomass Carrier: Effect of Sulfide Pulses and Organic Matter Presence. Water 2021, 13, 2484. https://doi.org/10.3390/w13182484

AMA Style

Huiliñir C, Fuentes V, Estuardo C, Antileo C, Pino-Cortés E. Partial Nitrification in a Sequencing Moving Bed Biofilm Reactor (SMBBR) with Zeolite as Biomass Carrier: Effect of Sulfide Pulses and Organic Matter Presence. Water. 2021; 13(18):2484. https://doi.org/10.3390/w13182484

Chicago/Turabian Style

Huiliñir, César, Vivian Fuentes, Carolina Estuardo, Christian Antileo, and Ernesto Pino-Cortés. 2021. "Partial Nitrification in a Sequencing Moving Bed Biofilm Reactor (SMBBR) with Zeolite as Biomass Carrier: Effect of Sulfide Pulses and Organic Matter Presence" Water 13, no. 18: 2484. https://doi.org/10.3390/w13182484

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