Effect of carbon source type on intracellular stored polymers during endogenous denitritation (ED) treating landfill leachate

Liu, Miao; Wang, Shuying; Li, Baikun; Cao, Tianhao; Zhang, Fangzhai; Wang, Zhong

doi:10.1016/j.watres.2016.05.010

Cited by 135 publications

(38 citation statements)

References 25 publications

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“…The family of Trueperaceae is known to be capable of resisting great environmental hazards and to reside in wastewater (Griffiths and Gupta, ). It was furthermore found in high‐strength ammonium wastewater, for example originating from landfill leachate (Tan et al ., ; Miao et al ., ). The family Legionellaceae was also present in some of the biotrickling filter samples at low abundancy (< 0.5%).…”

Section: Resultsmentioning

confidence: 97%

Long‐term microbial community dynamics at two full‐scale biotrickling filters treating pig house exhaust air

Heyden

Mulder

Volcke

et al. 2019

Microbial Biotechnology

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Summary In this study, the microbial community structure of two full‐scale biotrickling filters treating exhaust air from a pig housing facility were evaluated using 16S metabarcoding. The effect of inoculation with activated sludge of a nearby domestic waste water treatment plant was investigated, which is a cheap procedure and easy to apply in practice. The study was performed at a three‐stage and a two‐stage full‐scale biotrickling filter; of which, only the latter was inoculated. Both biotrickling filters evolved towards a rather similar community over time, which differed from the one in the activated sludge used for inoculation. However, the bacterial population at both biotrickling filters showed small differences on the family level. A large population of heterotrophic bacteria, including denitrifying bacteria, was present in both biotrickling filters. In the non‐inoculated biotrickling filter, nitrite‐oxidizing bacteria (NOB) could not be detected, which corresponded with the incomplete nitrification leading to high nitrite accumulation observed in this system. Inoculation with the wide spectrum inoculum activated sludge had in this study a positive effect on the biotrickling filter performance (higher ammonia removal and lower nitrous oxide production). It could thus be beneficial to inoculate biotrickling filters in order to enrich NOB at the start‐up, making it easier to keep the free nitrous acid concentration low enough to not be inhibited by it.

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Section: Resultsmentioning

confidence: 97%

Long‐term microbial community dynamics at two full‐scale biotrickling filters treating pig house exhaust air

Heyden

Mulder

Volcke

et al. 2019

Microbial Biotechnology

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“…2). (Miao et al, 2016). Therefore, the accumulation of Anaerolineaceae could further strengthen microbial metabolic activity and enhance nitrogen removal (Fig.…”

Section: Microbial Community Structurementioning

confidence: 99%

“…In addition to EPS which is recognized as the predominant membrane foulants in MBRs (Mannina et al, 2016;Hao et al, 2016;Tang et al, 2015), the composition of the carbon sources has been found to affect the microbial structure and bacterial metabolism as well (Gao et al, 2014), including the growth of membrane fouling bacterial (MFB) (Miao et al, 2016). All these have indicated the need for a comprehensive study on the specific effect of fermentation product on membrane fouling when it is used as external carbon source for enhancing nitrogen removal in an MBR system in the long term operation.…”

Section: Introductionmentioning

confidence: 99%

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Applying fermentation liquid of food waste as carbon source to a pilot-scale anoxic/oxic-membrane bioreactor for enhancing nitrogen removal: Microbial communities and membrane fouling behaviour

Tang

Wang

et al. 2017

Bioresource Technology

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Fermentation liquid of food waste (FLFW) was applied as an external carbon source in a pilot-scale anoxic/oxic-membrane bioreactor (A/O-MBR) system to enhance nitrogen removal for treating low COD/TN ratio domestic wastewater. Results showed that, with the FLFW addition, total nitrogen removal increased from lower than 20% to 44-67% during the 150days of operation. The bacterial metabolic activities were obviously enhanced, and the significant change in microbial community structure promoted pollutants removal and favored membrane fouling mitigation. By monitoring transmembrane pressure and characterizing typical membrane foulants, such as extracellular polymeric substances (EPS), dissolved organic matter (DOM), and inorganics and biopolymers in the cake layer, it was confirmed that FLFW addition did not bring about any additional accumulation of membrane foulants, acceleration of fouling rate, or obvious irreversible membrane fouling in the whole operation period. Therefore, FLFW is a promising alternative carbon source to enhance nitrogen removal for the A/O-MBR system.

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“…The DNA sequence analysis used Illumina MiSeq paired-end sequencing. Raw data generated from the high-throughput sequencing run was processed and analyzed following the pipelines of the QIIME platform [66]. The sequence reads were trimmed such that the average quality score for each read was above 20.…”

Section: Processing Of Sequencing Datamentioning

confidence: 99%

Effect of Cornstalk Biochar Immobilized Bacteria on Ammonia Reduction in Laying Hen Manure Composting

et al. 2020

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NH3 emission has become one of the key factors for aerobic composting of animal manure. It has been reported that adding microbial agents during aerobic composting can reduce NH3 emissions. However, environmental factors have a considerable influence on the activity and stability of the microbial agent. Therefore, this study used cornstalk biochar as carriers to find out the better biological immobilization method to examine the mitigation ability and mechanism of NH3 production from laying hen manure composting. The results from different immobilized methods showed that NH3 was reduced by 12.43%, 5.53%, 14.57%, and 22.61% in the cornstalk biochar group, free load bacteria group, mixed load bacteria group, and separate load bacteria group, respectively. Under the simulated composting condition, NH3 production was 46.52, 38.14, 39.08, and 30.81 g in the treatment of the control, mixed bacteria, cornstalk biochar, and cornstalk biochar separate load immobilized mixed bacteria, respectively. The cornstalk biochar separate load immobilized mixed bacteria treatment significantly reduced NH3 emission compared with the other treatments (p < 0.05). Compared with the control, adding cornstalk biochar immobilized mixed bacteria significantly decreased the electrical conductivity, water-soluble carbon, total nitrogen loss, and concentration of ammonium nitrogen (p < 0.05), and significantly increased the seed germination rate, total number of microorganisms, and relative abundance of lactic acid bacteria throughout the composting process (p < 0.05). Therefore, the reason for the low NH3 emission might be due not only to the adsorption of the cornstalk biochar but also because of the role of complex bacteria, which increases the relative abundance of lactic acid bacteria and promotes the acid production of lactic acid bacteria to reduce NH3 emissions. This result revealed the potential of using biological immobilization technology to reduce NH3 emissions during laying hen manure composting.

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Effect of carbon source type on intracellular stored polymers during endogenous denitritation (ED) treating landfill leachate

Cited by 135 publications

References 25 publications

Long‐term microbial community dynamics at two full‐scale biotrickling filters treating pig house exhaust air

Long‐term microbial community dynamics at two full‐scale biotrickling filters treating pig house exhaust air

Applying fermentation liquid of food waste as carbon source to a pilot-scale anoxic/oxic-membrane bioreactor for enhancing nitrogen removal: Microbial communities and membrane fouling behaviour

Effect of Cornstalk Biochar Immobilized Bacteria on Ammonia Reduction in Laying Hen Manure Composting

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