Bacterial community composition of internal circulation reactor at different heights for large-scale brewery wastewater treatment

Chen, Junfeng; Liu, Yanyan; Li, Kai; Hu, Lijun; Yang, Jiaqi; Wang, Xuemei; Song, Zhiling; Yang, Yuewei; Tang, Meizhen; Wang, Renjun

doi:10.1016/j.biortech.2021.125027

Cited by 53 publications

(15 citation statements)

References 49 publications

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“…Proteobacteria was the dominant phyla in both the LL and IL groups, with relative abundances of 23.8% (LL1), 30.9% (LL2), 32.3% (IL1), and 24.8% (IL2), respectively. Previous studies concluded that Proteobacteria were the largest and most diverse phylum, being widespread in biological processes used for wastewater treatment and involved in the removal of many types of pollutants from wastewater (Chen, Liu, et al, 2021; Ryu et al, 2021; Tang et al, 2020). Therefore, these results are consistent those of previous studies showing that Proteobacteria are the dominant phylum in activated sludge.…”

Section: Resultsmentioning

confidence: 99%

Microbial community response of the full‐scale MBR system for mixed leachates treatment

Song

et al. 2022

Water Environment Research

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In practice, mature landfill leachate and incineration (young) leachate are mixed to improve the biodegradability and enhance biological treatment performance. However, the ratio of mature‐to‐young leachates greatly influences MBR treatment efficiency and microbial community structure. This study investigated the treatment efficiency and microbial community structure of full‐scale MBR systems operated under two mix ratios, mature leachate: young leachate = 7:3 (v/v, denoted as LL) and 3:7 (v/v, denoted as IL). LL group showed lower Cl− and COD concentrations but a higher aromatic organic content comparing to IL group, and the COD and UV254 removals for LL were significantly lower than those for IL by MBR treatment. Microbial community structures were similar in both groups at phylum level, with dominant phyla being Proteobacteria (23.8%–32.3%), Bacteroidetes (15.25%–20.7%), Chloroflexi (10.5%–23.1%), and Patescibacteria (9.9%–13.2%). However, the richness and diversity of LL group were lower, and differences were observed at lower taxonomy levels. Results indicated that salinity mainly changed the structure of microbial community, resulting in greater abundance of salt‐tolerant microbials, while refractory organics affected microbial community structure, and also led to decreased diversity and metabolic activity. Therefore, in mixed leachates biological treatment, a higher young leachate ratio is recommended for better organics removal performance. Practitioner Points The trade‐off between refractory organics and salinity in mixed leachate treatment should be paid attention. Refractory organics reduced alpha and functional diversities of microorganisms. Mixed leachate with a higher young leachate ratio reached a better organic removal.

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Section: Resultsmentioning

confidence: 99%

Microbial community response of the full‐scale MBR system for mixed leachates treatment

Song

et al. 2022

Water Environment Research

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“… Chen et al (2021) who analyzed a full-scale IC reactor treating brewery wastewater, found that the bacterial community was significantly different at the diverse layers. The fermentation and acidification were mainly accomplished at bottom layer, but methane production was achieved at upper and middle layers.…”

Section: Methodsmentioning

confidence: 99%

“…In contrast to the 15 kg COD m –3 d –1 loading of UASB, the organic loading rate capacity of IC is up to 20–50 kg COD m –3 d –1 ( Rajagopal et al, 2013 ; Karadag et al, 2015 ; Wang et al, 2015 ; Hamza et al, 2016 ). The IC reactor has been widely utilized in industrial wastewater anaerobic treatment, such as beer production ( Chen et al, 2021 ), cotton pulp manufacturing ( Cui et al, 2011 ), food processing ( Guo et al, 2018 ), and paper making ( Irizar et al, 2018 ), etc.…”

Section: Introductionmentioning

confidence: 99%

Modeling the Performance of Full-Scale Anaerobic Biochemical System Treating Deinking Pulp Wastewater Based on Modified Anaerobic Digestion Model No. 1

Huang

Wan

et al. 2021

Front. Microbiol.

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The deinking pulp (DIP) is a main resource for paper making, and the wastewater from DIP process needs to be treated. Anaerobic biochemical technique has been widely applied in DIP wastewater treatment, due to the remarkable capability in reducing high chemical oxygen demand (COD). In this study, a mathematical simulation model was established to investigate the performance of a full-scale anaerobic biochemical system for treating DIP wastewater. The model was based on Anaerobic Digestion Model No. 1 (ADM1), which was modified according to the specific anaerobic digestion process for DIP wastewater treatment. The hydrodynamic behavior of a full-scale anaerobic biochemical system was considered in this model. The characteristics of the influent DIP wastewater were assessed, and then, the substrate COD proportion was divided successfully for the necessity of ADM1 applying. The Monte Carlo technique was implemented to distinguish the most sensitive parameters that influenced the model output indicators comprising effluent COD and biogas production. The sensitive parameters were estimated and optimized. The optimized value of k_m_pro is 12.02, K_S_pro is 0.35, k_m_ac is 4.26, K_S_ac is 0.26, k_m_h2 is 16.62, and K_S_h2 is 3.21 × 10–5. The model was calibrated with 150 days operation values measured in the field. The subsequent 100 days on-site values were used to validate the model, and the results obtained by the simulations were in good agreement. This study provides a meaningful and theoretical model guidance for full-scale wastewater anaerobic biochemical treatment simulation.

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“…This technology comes from the development of third-generation UASB reactors using a double layer configuration with a gas-driven internal circulation system [61]. In a recent work Cheng et al [62] analyzed the performance of a brewery wastewater-fed internal circulation (IC) reactor. Their main interest was in the observation of bacterial community mechanisms at different heights of the digester for large-scale brewery wastewater treatment.…”

Section: Internal Circulation Reactormentioning

confidence: 99%

A Review of the State of the Art of Biomethane Production: Recent Advancements and Integration of Renewable Energies

et al. 2021

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Anaerobic Digestion (AD) is a well-established process that is becoming increasingly popular, especially as a technology for organic waste treatment; the process produces biogas, which can be upgraded to biomethane, which can be used in the transport sector or injected into the natural gas grid. Considering the sensitivity of Anaerobic Digestion to several process parameters, mathematical modeling and numerical simulations can be useful to improve both design and control of the process. Therefore, several different modeling approaches were presented in the literature, aiming at providing suitable tools for the design and simulation of these systems. The purpose of this study is to analyze the recent advancements in the biomethane production from different points of view. Special attention is paid to the integration of this technology with additional renewable energy sources, such as solar, geothermal and wind, aimed at achieving a fully renewable biomethane production. In this case, auxiliary heat may be provided by solar thermal or geothermal energy, while wind or photovoltaic plants can provide auxiliary electricity. Recent advancements in plants design, biomethane production and mathematical modeling are shown in the paper, and the main challenges that these fields must face with are discussed. Considering the increasing interest of industries, public policy makers and researchers in this field, the efficiency and profitability such hybrid renewable solutions for biomethane production are expected to significantly improve in the next future, provided that suitable subsidies and funding policies are implemented to support their development.

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Bacterial community composition of internal circulation reactor at different heights for large-scale brewery wastewater treatment

Cited by 53 publications

References 49 publications

Microbial community response of the full‐scale MBR system for mixed leachates treatment

Microbial community response of the full‐scale MBR system for mixed leachates treatment

Modeling the Performance of Full-Scale Anaerobic Biochemical System Treating Deinking Pulp Wastewater Based on Modified Anaerobic Digestion Model No. 1

A Review of the State of the Art of Biomethane Production: Recent Advancements and Integration of Renewable Energies

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