Bamboo charcoal addition enhanced the nitrogen removal of anammox granular sludge with COD: Performance, physicochemical characteristics and microbial community

Guo, Menglei; Jiang, Ying; Xie, Junxiang; Cao, Qianfei; Zhang, Qun; Adams, Mabruk; Chen, Chongjun

doi:10.1016/j.jes.2021.07.010

Cited by 63 publications

(4 citation statements)

References 38 publications

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“…This can be attributed to the higher EBCT of R1, which allows the microbial community in the lower part to consume the substrate more efficiently. As a result, the substrate becomes scarce (close to starvation) when it flows to the upper part, leading to lower VSS in that region 32 . On the other hand, the total EPS of R2 is higher than that of R1.…”

Section: Resultsmentioning

confidence: 98%

“…As a result, the substrate becomes scarce (close to starvation) when it flows to the upper part, leading to lower VSS in that region. 32 On the other hand, the total EPS of R2 is higher than that of R1. There are two reasons for this difference: first, the low EBCT and the presence of certain DO in the influent are not conducive to AnAOB growth; second, R2 has less substrate, which promotes EPS generation as a means for the bacteria to resist starvation caused by insufficient substrate.…”

Section: General Characteristics Of Sludge After Operationmentioning

confidence: 96%

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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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Section: Resultsmentioning

confidence: 98%

Section: General Characteristics Of Sludge After Operationmentioning

confidence: 96%

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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“…Redundancy analysis was performed to investigate the key factors shaping microbial community and function. Shannon index, functional gene, and metabolic pathway were obtained using Quantitative Insights into Microbial Ecology (QIIME) and Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) (Chen et al, 2016 ; Guo et al, 2022 ).…”

Section: Methodsmentioning

confidence: 99%

Deep groundwater irrigation altered microbial community and increased anammox and methane oxidation in paddy wetlands of Sanjiang Plain, China

Li,

Song,

Qiu

et al. 2024

Front. Microbiol.

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The over-utilizing of nitrogen fertilizers in paddy wetlands potentially threatens to the surrounding waterbody, and a deep understanding of the community and function of microorganisms is crucial for paddy non-point source pollution control. In this study, top soil samples (0–15 cm) of paddy wetlands under groundwater's irrigation at different depths (H1: 6.8 m, H2: 13.7 m, H3: 14.8 m, H4: 15.6 m, H5: 17.0 m, and H6: 17.8 m) were collected to investigate microbial community and function differences and their interrelation with soil properties. Results suggested some soil factor differences for groundwater's irrigation at different depths. Deep-groundwater's irrigation (H2-H6) was beneficial to the accumulation of various electron acceptors. Nitrifying-bacteria Ellin6067 had high abundance under deep groundwater irrigation, which was consistent with its diverse metabolic capacity. Meanwhile, denitrifying bacteria had diverse distribution patterns. Iron-reducing bacteria Geobacter was abundant in H1, and Anaeromyxobacter was abundant under deep groundwater irrigation; both species could participate in Fe-anammox. Furthermore, Geobacter could perform dissimilatory nitrate reduction to ammonia using divalent iron and provide substrate supply for anammox. Intrasporangium and norank_f_Gemmatimonadacea had good chromium- and vanadium-reducting potentials and could promote the occurrence of anammox. Low abundances of methanotrophs Methylocystis and norank_f_Methyloligellaceae were associated with the relatively anoxic environment of paddy wetlands, and the presence of aerobic methane oxidation was favorable for in-situ methane abatement. Moisture, pH, and TP had crucial effects on microbial community under phylum- and genus-levels. Microorganisms under shallow groundwater irrigation were highly sensitive to environmental changes, and Fe-anammox, nitrification, and methane oxidation were favorable under deep groundwater irrigation. This study highlights the importance of comprehensively revealing the microbial community and function of paddy wetlands under groundwater's irrigation and reveals the underlying function of indigenous microorganisms in agricultural non-point pollution control and greenhouse gas abatement.

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“…Biological processes are known to be environmentally friendly and costeffective, and have been regarded as the most promising method for environmental bioremediation, such as wastewater treatment, soil pollution control and municipal solid waste disposal. 1–3 Over the past several decades, numerous studies have optimized the biological processes for highly efficient pollutant degradation. However, in natural and engineered systems, most microorganisms live in unpredictable environments, such as physical (high/low temperatures), chemical stressors (highly-toxic pollutants), biocides, antibiotics, and typically experience conditions that are suboptimal for growth and reproduction.…”

Section: Introductionmentioning

confidence: 99%

Optimization of bacterial cytokine protein production by response surface methodology for environmental bioremediation

Xie

et al. 2021

RSC Adv.

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Bamboo charcoal addition enhanced the nitrogen removal of anammox granular sludge with COD: Performance, physicochemical characteristics and microbial community

Cited by 63 publications

References 38 publications

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

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

Deep groundwater irrigation altered microbial community and increased anammox and methane oxidation in paddy wetlands of Sanjiang Plain, China

Optimization of bacterial cytokine protein production by response surface methodology for environmental bioremediation

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