Selective enhancement and verification of woody biomass digestibility as a denitrification carbon source

Hu, Rongting; Zheng, Xilai; Xin, Jia; Sun, Zhaoyue; Zheng, Tianyuan

doi:10.1016/j.biortech.2017.07.162

Cited by 26 publications

(4 citation statements)

References 47 publications

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“…Based on the nitrate and total nitrogen loads in the influent and effluent of the MBBR, the Journal Pre-proof carbon availability was already confirmed by other studies (Hu et al, 2017;Jiang et al, 2017).…”

Section: Discussionsupporting

confidence: 57%

Low temperature Moving Bed Bioreactor denitrification as mitigation measure to reduce agricultural nitrate losses

Aken

Lambert

Appels

2022

Science of The Total Environment

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Section: Discussionsupporting

confidence: 57%

Low temperature Moving Bed Bioreactor denitrification as mitigation measure to reduce agricultural nitrate losses

Aken

Lambert

Appels

2022

Science of The Total Environment

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“…During the stable phase, the average TN concentration of PC-OH was 1.44 ± 0.53 mg L −1 , which was remarkably lower than that of PC-H (2.73 ± 0.65 mg L −1 ) and PC (5.75 ± 0.57 mg L −1 ) ( p < 0.05). The improvements in TN removal performance mainly resulted from the increased biodegradability of composite carbon sources [ 12 ]. However, the TN removal performances of PC-H-A and PC-OH-A significantly decreased from 60% (day 12) to below 40% (day 21), which demonstrated their unsustainable supply of available carbon sources.…”

Section: Resultsmentioning

confidence: 99%

“…However, the recalcitrant lignin in plant materials is difficult to biodegrade and hinders the microbial decomposition of biodegradable cellulose and hemicelluloses [ 10 ], which might lead to the deterioration of denitrification performance and the wasting of resources. Various pretreatment methods for plant materials have been developed to intensify the biodegradability and accessibility of carbon sources [ 4 , 10 , 11 , 12 ]. The effects of pretreatment on the physicochemical structure of plant materials vary with different methods [ 13 ], which contributes to differences in the biological accessibility of available carbon sources and affects their electron supply capacity.…”

Section: Introductionmentioning

confidence: 99%

Improved Denitrification Performance of Polybutylene Succinate/Corncob Composite Carbon Source by Proper Pretreatment: Performance, Functional Genes and Microbial Community Structure

et al. 2023

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Blending biodegradable polymers with plant materials is an effective method to improve the biodegradability of solid carbon sources and save denitrification costs, but the recalcitrant lignin in plant materials hinders the microbial decomposition of available carbon sources. In the present study, corncob pretreated by different methods was used to prepare polybutylene succinate/corncob (PBS/corncob) composites for biological denitrification. The PBS/corncob composite with alkaline pretreatment achieved the optimal NO3−-N removal rate (0.13 kg NO3−-N m−3 day−1) with less adverse effects. The pretreatment degree, temperature, and their interaction distinctly impacted the nitrogen removal performance and dissolved organic carbon (DOC) release, while the N2O emission was mainly affected by the temperature and the interaction of temperature and pretreatment degree. Microbial community analysis showed that the bacterial community was responsible for both denitrification and lignocellulose degradation, while the fungal community was primarily in charge of lignocellulose degradation. The outcomes of this study provide an effective strategy for improving the denitrification performance of composite carbon sources.

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“…In scientific literature other external carbon sources are being studied for denitrification purposes. Hu et al (Hu et al, 2017) studied denitrification efficiency in soil using sawdust. They claimed that the denitrification efficiency of sawdust was low because of its poor carbon availability.…”

Section: Journal Of Agricultural Studiesmentioning

confidence: 99%

Valorization of Agro-Industrial By-products: Use of Rice Husk as a Source of Microorganisms to Denitrification of Water

João¹,

Vieira²,

Silveira³

et al. 2020

JAS

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Rice husk, which is an agricultural waste, provides a feasible alternative for the growth and propagation of denitrifying microorganisms. Nitrate and nitrite were removed using Immobilized Microorganisms (MOIM) or Microorganisms in Solution (MOSO). Microorganisms present in the rice husk biomass responsible for denitrification were identified as Pseudomonas, and other microorganisms have also been identified, as Oerskovia spp. Enterococcus sp. Bacillus mycoides and Escherichia coli. The influence of pH, temperature, C/N ratio and carbon source on biological denitrification were investigated. MOIM and MOSO consortium had optimal denitrifying performance at 25-30 °C and in pH 7-8. MOSO has average denitrification efficiency larger than MOIM. The MOIM denitrification efficiency was more sensitive to pH changes than the MOSO. Ethanol and sodium acetate were carbon sources for the denitrifying process. The efficiency of nitrate and nitrite removal using MOSO and ethanol or acetate with 1:1, 1:2, 1:3 and 1:4 C/N ratios were equivalents and above 97.00%. The denitrifying process presented was robust and it presented nitrate removal close to 100% during 10 cycles.

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Selective enhancement and verification of woody biomass digestibility as a denitrification carbon source

Cited by 26 publications

References 47 publications

Low temperature Moving Bed Bioreactor denitrification as mitigation measure to reduce agricultural nitrate losses

Low temperature Moving Bed Bioreactor denitrification as mitigation measure to reduce agricultural nitrate losses

Improved Denitrification Performance of Polybutylene Succinate/Corncob Composite Carbon Source by Proper Pretreatment: Performance, Functional Genes and Microbial Community Structure

Valorization of Agro-Industrial By-products: Use of Rice Husk as a Source of Microorganisms to Denitrification of Water

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