C-N-S synergy in a pilot-scale mainstream anammox fluidized-bed membrane bioreactor for treating chemically enhanced primary treatment saline sewage

Huang, Xiaowu; Mi, Wenkui; Chan, Yuen Him; Singh, Shubham; Zhuang, Huichuan; Leu, Shao‐Yuan; Li, Xiang-zhong; Li, Xiangdong; Lee, Po‐Heng

doi:10.1016/j.watres.2022.119475

Cited by 21 publications

(5 citation statements)

References 51 publications

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“… Le et al (2022) reported a stable VNRR of 250 ± 3 gN/(m 3 ∙d) at 32–35°C in lab trials using bio-carrier reactor technology. In a pilot study by Huang et al (2023) using fluidized membrane bio-reactor technology, the VNRRs accounted for 60.6 ± 13.3 gN/(m 3 ∙d) at 28–30°C with the effluent TN below 10 gN/m 3 at the HRT of 8 h. VNRRs 384 gN/(m 3 ∙d) of deammonification at 30°C of the present work achieved higher efficiencies using SBR technology than other reactor technologies in literature. Nevertheless, the results of Huang et al (2023) should not be seen as a direct comparison to the current study as the VNRRs represented the pilot-scale study.…”

Section: Resultsmentioning

confidence: 52%

“…In a pilot study by Huang et al (2023) using fluidized membrane bio-reactor technology, the VNRRs accounted for 60.6 ± 13.3 gN/(m 3 ∙d) at 28–30°C with the effluent TN below 10 gN/m 3 at the HRT of 8 h. VNRRs 384 gN/(m 3 ∙d) of deammonification at 30°C of the present work achieved higher efficiencies using SBR technology than other reactor technologies in literature. Nevertheless, the results of Huang et al (2023) should not be seen as a direct comparison to the current study as the VNRRs represented the pilot-scale study. The anammox activity in the pilot-scale systems, comparable to lab-scale systems, could be variable over time in response to the temperature ( Hausherr et al, 2021 ).…”

Section: Resultsmentioning

confidence: 52%

“…Le et al (2022) reported a stable VNRR of 250 ± 3 gN/(m 3 •d) at 32-35°C in lab trials using bio-carrier reactor technology. In a pilot study by Huang et al (2023) using fluidized membrane bio-reactor technology, the VNRRs accounted for 60.6 ± 13.3 gN/(m 3 •d) at 28-30°C with the Huang et al (2023) should not be seen as a direct comparison to the current study as the VNRRs represented the pilot-scale study. The anammox activity in the pilotscale systems, comparable to lab-scale systems, could be variable over time in response to the temperature (Hausherr et al, 2021).…”

Section: The Vnrr Of Various Deammonifying Sludgesmentioning

confidence: 91%

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Concept development of a mainstream deammonification and comparison with conventional process in terms of energy, performance and economical construction perspectives

et al. 2023

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Deammonification for nitrogen removal in municipal wastewater in temperate and cold climate zones is currently limited to the side stream of municipal wastewater treatment plants (MWWTP). This study developed a conceptual model of a mainstream deammonification plant, designed for 30,000 P.E., considering possible solutions corresponding to the challenging mainstream conditions in Germany. In addition, the energy-saving potential, nitrogen elimination performance and construction-related costs of mainstream deammonification were compared to a conventional plant model, having a single-stage activated sludge process with upstream denitrification. The results revealed that an additional treatment step by combining chemical precipitation and ultra-fine screening is advantageous prior the mainstream deammonification. Hereby chemical oxygen demand (COD) can be reduced by 80% so that the COD:N ratio can be reduced from 12 to 2.5. Laboratory experiments testing mainstream conditions of temperature (8–20°C), pH (6–9) and COD:N ratio (1–6) showed an achievable volumetric nitrogen removal rate (VNRR) of at least 50 gN/(m3∙d) for various deammonifying sludges from side stream deammonification systems in the state of North Rhine-Westphalia, Germany, where m3 denotes reactor volume. Assuming a retained Norganic content of 0.0035 kgNorg./(P.E.∙d) from the daily loads of N at carbon removal stage and a VNRR of 50 gN/(m3∙d) under mainstream conditions, a resident-specific reactor volume of 0.115 m3/(P.E.) is required for mainstream deammonification. This is in the same order of magnitude as the conventional activated sludge process, i.e., 0.173 m3/(P.E.) for an MWWTP of size class of 4. The conventional plant model yielded a total specific electricity demand of 35 kWh/(P.E.∙a) for the operation of the whole MWWTP and an energy recovery potential of 15.8 kWh/(P.E.∙a) through anaerobic digestion. In contrast, the developed mainstream deammonification model plant would require only a 21.5 kWh/(P.E.∙a) energy demand and result in 24 kWh/(P.E.∙a) energy recovery potential, enabling the mainstream deammonification model plant to be self-sufficient. The retrofitting costs for the implementation of mainstream deammonification in existing conventional MWWTPs are nearly negligible as the existing units like activated sludge reactors, aerators and monitoring technology are reusable. However, the mainstream deammonification must meet the performance requirement of VNRR of about 50 gN/(m3∙d) in this case.

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Section: Resultsmentioning

confidence: 52%

Section: Resultsmentioning

confidence: 52%

Section: The Vnrr Of Various Deammonifying Sludgesmentioning

confidence: 91%

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Concept development of a mainstream deammonification and comparison with conventional process in terms of energy, performance and economical construction perspectives

et al. 2023

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“…Successful anammox-based cases at laboratory and pilot scales have been reported, such as partial nitrification/anammox and partial denitrification/anammox predominantly aimed at primary wastewater instead of secondary tail water for which TN concentration was comparatively lower. [24][25][26] So far, only a few studies have been conducted on the start-up of anammox systems with low substrate concentration for advanced nitrogen removal. Yang et al 27 investigated the effect of low strength on anammox treating artificial wastewater in a moving bed biofilm reactor, reporting results similar to those of our study.…”

Section: A-bf Performance With Substrate Concentration Decreasementioning

confidence: 99%

Start‐up and operation of anammox biofilter in treating low‐strength ammonia wastewater prepared by tail water from a municipal wastewater treatment plant

Jin

Ning

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUNDEconomic technology of advanced nitrogen removal of municipal wastewater is urgently needed. In this study, anammox biofilter (A‐BF) as a carbon‐ and energy‐saving advanced nitrogen removal process was tested under the conditions of sewage secondary effluent.RESULTSThe results showed that A‐BF could be successfully started up under total nitrogen (TN) of both 25 and 75 mg L−1 within 30 days at 25 °C. It achieved a nitrogen removal rate of 0.62 ± 0.08 kg‐N m−3 d−1 with nitrogen loading rate of 1.35 kg‐N m−3 d−1 at TN of 17 mg L−1. The ceramsite bed was conducive to the formation of biofilm and enrichment of functional microorganisms. The volatile suspended solid reached 1.39–7.33 g L−1, in which the abundance of the typical anammox bacteria Candidatus_Brocadia and Candidatus_Kuenenia occupied 0.96–1.35% and 0.29–0.92%, respectively.CONCLUSIONSOverall, under low TN concentration and high nitrogen load, A‐BF could be a candidate technique for advanced nitrogen removal of municipal sewage. © 2023 Society of Chemical Industry.

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“…Recent advances in wastewater treatment processes have focused on how to capitalize on the physiological differences among nitrifying bacteria to reduce aeration energy and chemical addition while enhancing effluent quality . For example, partial nitrification and low DO nitrification have gained attention as ways to reduce energy and aeration demand, as well as operational costs of aeration during secondary treatment. , Other processes that require less oxygen to remove NH 4 + have also been implemented as alternatives, such as partial nitritation (PNA) coupled with anaerobic ammonium oxidation (anammox), which combines two different nitrogen removal processes: PNA and anammox. − The PNA process has been successfully implemented to sidestream treatments, including biomass digesters’ effluent and landfill leachate, and has proven to be more energy-efficient . Recently partial denitrification has been coupled with anammox (PdNA) as alternative nitrogen removal strategy providing opportunities to achieve a more sustainable wastewater treatment. , …”

Section: Introductionmentioning

confidence: 99%

Exploring Community and Kinetic Shifts in Nitrifying Microbial Communities in Low Dissolved Oxygen Activated Sludge Facilities for Energy-Efficient Biological Nitrogen Removal

Sabba,

Redmond,

Ruff

et al. 2024

ACS EST Water

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The discovery of the complete ammonia oxidation process (comammox) has challenged conventional nitrification theory, showing microbial adaption to very low dissolved oxygen (DO) concentrations. This study aimed at investigating the effects of different DO concentrations using a series of bioreactors inoculated with biomass from three operationally diverse water resource recovery facilities. Results show that microbial populations adapted to low DO environments can maintain high rates across a range of DO concentrations, indicating their ability to function well even at high DO concentrations. Additionally, long solids retention times (>10 days) can encourage the persistence of comammox populations adapted to different DO concentrations. Molecular analyses revealed that the low DO-facility had a nitrifying population with similar ratios of comammox clades A and B, while the high DO facility was dominated by clade A. Modeling results suggest that the nitrifying population including comammox bacteria from the low DO facility has a different half-saturation coefficient for DO (e.g., 0.05 mg L −1 ) and possible intrapopulation diversity within clades A and B. This study highlights that a changing nitrification community can enable the activated sludge process to operate effectively at low DO concentrations, leading to low-energy biological nitrogen removal.

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C-N-S synergy in a pilot-scale mainstream anammox fluidized-bed membrane bioreactor for treating chemically enhanced primary treatment saline sewage

Cited by 21 publications

References 51 publications

Concept development of a mainstream deammonification and comparison with conventional process in terms of energy, performance and economical construction perspectives

Concept development of a mainstream deammonification and comparison with conventional process in terms of energy, performance and economical construction perspectives

Start‐up and operation of anammox biofilter in treating low‐strength ammonia wastewater prepared by tail water from a municipal wastewater treatment plant

Exploring Community and Kinetic Shifts in Nitrifying Microbial Communities in Low Dissolved Oxygen Activated Sludge Facilities for Energy-Efficient Biological Nitrogen Removal

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