Towards advanced nitrogen removal and optimal energy recovery from leachate: A critical review of anammox-based processes

Ye, Jiongjiong; Liu, Jianyong; Ye, Min; Ma, Xiao; Li, Yu You

doi:10.1080/10643389.2019.1631989

Cited by 52 publications

(12 citation statements)

References 149 publications

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“…S2). A comparable result was reported by a previous study (Ye et al, 2020), where 23-74% removal of COD was achieved in the PNA process for the treatment of mature leachate. The removal of bulk organics in the PNA system might be related to the heterotrophic aerobic oxidation and denitrification pathways due to the micro-aerobic condition of the PNA reactor.…”

Section: Performance Of the Pna Processsupporting

confidence: 91%

“…These optimal DO and AFR conditions are different from other studies, which might be attributed to the different leachate characteristics and the different ways of oxygen diffusion in different reactors. The optimum conditions of pH (8.4-8.6) and temperature (20-30 • C) were similar as in previous studies which found that the ammonia-oxidizing bacteria (AOB) and anaerobic ammonium oxidation bacteria (AnAOB) responsible for nitrogen removal tolerate pH values between 6.0 and 9.0 and temperatures between 20 and 35 • C (Wang et al, 2010;Ye et al, 2020). The total nitrogen removal efficiency (TNRE) decreased, however, significantly when the temperature decreased to 15-19 • C due to the decrease of functional microbial activities (AOB and AnAOB) at low temperatures.…”

Section: Performance Of the Pna Processsupporting

confidence: 82%

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Advanced treatment of landfill leachate through combined Anammox-based biotreatment, O3/H2O2 oxidation, and activated carbon adsorption: technical performance, surrogate-based control strategy, and operational cost analysis

Yang

Ricoveri

Demeestere

et al. 2022

Journal of Hazardous Materials

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Section: Performance Of the Pna Processsupporting

confidence: 91%

Section: Performance Of the Pna Processsupporting

confidence: 82%

Advanced treatment of landfill leachate through combined Anammox-based biotreatment, O3/H2O2 oxidation, and activated carbon adsorption: technical performance, surrogate-based control strategy, and operational cost analysis

Yang

Ricoveri

Demeestere

et al. 2022

Journal of Hazardous Materials

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“…Since their discovery, anammox bacteria are considered to be biotechnologically valuable microorganisms. They are successfully applied in various systems for effective nitrogen removal, including wastewater and leachate treatment (Kartal et al, 2010; Cao et al, 2017; Ye et al, 2019). Anammox bacteria produce dinitrogen gas via anammox process: anaerobic ammonia oxidation with nitrite.…”

Section: Introductionmentioning

confidence: 99%

Genome of a Novel Bacterium “Candidatus Jettenia ecosi” Reconstructed From the Metagenome of an Anammox Bioreactor

et al. 2019

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The microbial community of a laboratory-scale bioreactor based on the anammox process was investigated by using metagenomic approaches and fluorescent in situ hybridization (FISH). The bioreactor was initially inoculated with activated sludge from the denitrifying bioreactor of a municipal wastewater treatment station. By constantly increasing the ammonium and nitrite load, a microbial community containing the novel species of anammox bacteria “Candidatus Jettenia ecosi” developed in the bioreactor after 5 years when the maximal daily nitrogen removal rate reached 8.5 g/L. Sequencing of the metagenome of anammox granules and the binning of the contigs obtained, allowed a high quality draft genome of the dominant anammox bacterium, “Candidatus Jettenia ecosi” to be assembled. Annotation of the 3.9 Mbp long genome revealed 3970 putative protein-coding genes, 45 tRNA genes, and genes for 16S/23S rRNAs. Analysis of the genome of “Candidatus Jettenia ecosi” revealed genes involved in anammox metabolism, including nitrite and ammonium transporters, copper-containing nitrite reductase, a nitrate reductase complex, hydrazine synthase, and hydrazine dehydrogenase. Autotrophic carbon fixation could be accomplished through the Wood Ljungdahl pathway. The composition of the community was investigated through a search of 16S rRNA sequences in the metagenome and FISH analysis of the anammox granules. The presence of the members of Ignavibacteriae, Betaproteobacteria, Chloroflexi and other microbial lineages reflected the complexity of the microbial processes in the studied bioreactor performed by anammox Planctomycetes, fermentative bacteria, and denitrifiers.

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“…The influence of FA and FNA on anammox reactions cannot be predicted and can only be determined through experiments. In order to ensure the efficient and stable operation of anammox systems, substrate concentration should be controlled at the predetermined threshold [75].…”

Section: High Strength Nitrogenmentioning

confidence: 99%

Nitrogen Removal from Mature Landfill Leachate via Anammox Based Processes: A Review

et al. 2022

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Mature landfill leachate is a complex and highly polluted effluent with a large amount of ammonia nitrogen, toxic components and low biodegradability. Its COD/N and BOD5/COD ratios are low, which is not suitable for traditional nitrification and denitrification processes. Anaerobic ammonia oxidation (anammox) is an innovative biological denitrification process, relying on anammox bacteria to form stable biofilms or granules. It has been extensively used in nitrogen removal of mature landfill leachate due to its high efficiency, low cost and sludge yield. This paper reviewed recent advances of anammox based processes for mature landfill leachate treatment. The state of the art anammox process for mature landfill leachate is systematically described, mainly including partial nitrification–anammox, partial nitrification–anammox coupled denitrification. At the same time, the microbiological analysis of the process operation was given. Anaerobic ammonium oxidation (anammox) has the merit of saving the carbon source and aeration energy, while its practical application is mainly limited by an unstable influent condition, operational control and seasonal temperature variation. To improve process efficiency, it is suggested to develop some novel denitrification processes coupled with anammox to reduce the inhibition of anammox bacteria by mature landfill leachate, and to find cheap new carbon sources (methane, waste fruits) to improve the biological denitrification efficiency of the anammox system.

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Towards advanced nitrogen removal and optimal energy recovery from leachate: A critical review of anammox-based processes

Cited by 52 publications

References 149 publications

Advanced treatment of landfill leachate through combined Anammox-based biotreatment, O3/H2O2 oxidation, and activated carbon adsorption: technical performance, surrogate-based control strategy, and operational cost analysis

Advanced treatment of landfill leachate through combined Anammox-based biotreatment, O3/H2O2 oxidation, and activated carbon adsorption: technical performance, surrogate-based control strategy, and operational cost analysis

Genome of a Novel Bacterium “Candidatus Jettenia ecosi” Reconstructed From the Metagenome of an Anammox Bioreactor

Nitrogen Removal from Mature Landfill Leachate via Anammox Based Processes: A Review

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