Effects of ferric oxide on the microbial community and functioning during anaerobic digestion of swine manure

Lu, Tiedong; Zhang, Junya; Wei, Yuansong; Shen, Peihong

doi:10.1016/j.biortech.2019.121393

Cited by 60 publications

(28 citation statements)

References 45 publications

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“…The proportion of Methanosphaerula and Methanospirillum decreased after anaerobic condition ( Table 1 ). They could only use H 2 and CO 2 to produce methane ( Lu et al, 2019 ). In comparison, Methanosarcina had more advantages in the anaerobic process.…”

Section: Resultsmentioning

confidence: 99%

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Phosphate substances transformation and vivianite formation in P-Fe containing sludge during the transition process of aerobic and anaerobic conditions

Liu

Gao

2021

Bioresource Technology

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Section: Resultsmentioning

confidence: 99%

“…In comparison, Methanosarcina had more advantages in the anaerobic process. It could generate methane by using acetic acid, methanol, H 2 , CO 2 and CO, etc ( Lu et al, 2019 , Zhang et al, 2019b ). Previous studies had pointed out that Fe 2+ could promote the conversion of other substances into acetic acid ( Lu et al, 2020 ).…”

Section: Resultsmentioning

confidence: 99%

Phosphate substances transformation and vivianite formation in P-Fe containing sludge during the transition process of aerobic and anaerobic conditions

Liu

Gao

2021

Bioresource Technology

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“…The mean TMP at 100 days of SRT was 73. 33 A rapid increase of the TMP was encountered, corresponding to that failure, and with the second failure, the flux was rapidly declined to below 20 Lm −2 h −1 . The permeability has also shown considerable reduction over the time corresponding to aforesaid variations in TMP and flux.…”

Section: Tmp and Flux Evolutionmentioning

confidence: 97%

“…The DNA of these samples was extracted using a FAST DNA Spin Kit for Soil (MP Biomedicals, Solon, OH, USA) according to the manufacturer's instructions. Bacterial and archaeal diversity was evaluated by PCR amplification of 16S rRNA genes using the 515FmodF_806R and silva_Arch349F-Arch806R primers following the procedure by Lu et al, 2019 [33]. Sequencing was conducted at the Sangon Co., Ltd (Shanghai, China).…”

Section: Microbial Community Analysismentioning

confidence: 99%

Effects of Solids Retention Time on the Anaerobic Membrane Bioreactor with Yttria-Based Ceramic Membrane Treating Domestic Wastewater at Ambient Temperature

Nilusha

Zhang

et al. 2020

Membranes

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The effects of solid retention times (SRTs) (100 days, 50 days, 25 days) on the performance, microbial community, and membrane fouling of a lab-scale anaerobic yttria-based ceramic membrane bioreactor (AnCMBR) treating synthetic domestic wastewater at ambient temperature (31.2 ± 2.7 °C) were examined. The soluble chemical oxygen demand (SCOD) removal was higher (89.6%) at 25 days SRT compared with 50 days (39.61%) and 100 days (34.3%) SRT. At 100 days SRT, more Bacteroidetes, Firmicutes, and Proteobacteria were present in the microbial community. At 25 days SRT, more Chloroflexi, Synergistetes, and Pastescibacteria emerged, contributing to the stable performance. The SRT of 25 days has resulted in a more stable microbial community compared with 50 days and 100 days SRT. Both bacterial and archaeal community diversities were higher at 25 days SRT, and the specific production of soluble microbial by-products (SMPs) and extracellular polymeric substances (EPSs) were higher at 25 days SRT as well. Consequently, the membrane flux was lower at 25 days SRT with the increased particle size and the enhanced SMPs and EPSs production. Fourier transform infrared spectroscopy analysis (FTIR) and three-dimensional excitation and emission matrix (3D-EEM) analysis showed that protein and SMPs were the major membrane foulants at all SRT stages. In this study, SRT at 25 days was favorable for the stable operation of an AnCMBR treating domestic wastewater at ambient temperature.

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“…The raw data were processed to obtain clean sequences on the free online platform of Majorbio Cloud Platform (www.majorbio.com (accessed on 1 January 2021)) of Shanghai Majorbio Biopharm Technology Co., Ltd., Shanghai, China using the project No. MJ20191010008-MJ-M-20191127012.This procedure and analysis were in accordance with [28].…”

Section: Microbial Community Analysismentioning

confidence: 99%

New Insights into the Microbial Diversity of Cake Layer in Yttria Composite Ceramic Tubular Membrane in an Anaerobic Membrane Bioreactor (AnMBR)

Nilusha

Wei

2021

Membranes

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Cake layer formation is an inevitable challenge in membrane bioreactor (MBR) operation. The investigations on the cake layer microbial community are essential to control biofouling. This work studied the bacterial and archaeal communities in the cake layer, the anaerobic sludge, and the membrane cleaning solutions of anaerobic membrane bioreactor (AnMBR) with yttria-based ceramic tubular membrane by polymerase chain reaction (PCR) amplification of 16S rRNA genes. The cake layer resistance was 69% of the total membrane resistance. Proteins and soluble microbial by-products (SMPs) were the dominant foulants in the cake layer. The pioneering archaeal and bacteria in the cake layer were mostly similar to those in the anaerobic bulk sludge. The dominant biofouling bacteria were Proteobacteria, Bacteroidetes, Firmicutes, and Chloroflexi and the dominant archaeal were Methanosaetacea and Methanobacteriacea at family level. This finding may help to develop antifouling membranes for AnMBR treating domestic wastewater.

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Effects of ferric oxide on the microbial community and functioning during anaerobic digestion of swine manure

Cited by 60 publications

References 45 publications

Phosphate substances transformation and vivianite formation in P-Fe containing sludge during the transition process of aerobic and anaerobic conditions

Phosphate substances transformation and vivianite formation in P-Fe containing sludge during the transition process of aerobic and anaerobic conditions

Effects of Solids Retention Time on the Anaerobic Membrane Bioreactor with Yttria-Based Ceramic Membrane Treating Domestic Wastewater at Ambient Temperature

New Insights into the Microbial Diversity of Cake Layer in Yttria Composite Ceramic Tubular Membrane in an Anaerobic Membrane Bioreactor (AnMBR)

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