Anaerobic digestion of spectinomycin mycelial residues pretreated by thermal hydrolysis: removal of spectinomycin and enhancement of biogas production

Song, Siqi; Jiang, Mingye; Yao, Jie; Liu, Huiling; Dai, Xiaohu

doi:10.1007/s11356-020-09985-6

Cited by 13 publications

(2 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…proteins, complex sugars) were further transformed into smaller molecules such as monosaccharides and amino acids through further hydrolysis and degradation reactions [42,43], which made them easier to be utilized for acetogenic and methanogenic metabolisms. Further increase of the temperature to 170°C, however, also led to a lower methane production yield.…”

Section: Methane Formation Potential Of the Hydrolyzed Residuementioning

confidence: 99%

Hydrothermal pretreatment of oxytetracycline fermentation residue: Removal of oxytetracycline and increasing the potential for anaerobic digestion

Awad

Tian

Zhang

et al. 2020

Environmental Engineering Research

View full text Add to dashboard Cite

The presence of high level of antibiotics in the antibiotic fermentation residue is one of the main reasons that prevent their direct disposal or further use as a resource. In this study, the feasibility of using the hydrothermal pretreatment for removing oxytetracycline (OTC) from its fermentation residue and enhancing anaerobic digestion was evaluated under different temperatures i.e. 110, 130, 150 and 170°C. The results showed that the removal rate of OTC increased as a function of temperature, and hydrothermal treatment at 130°C for 5 min was found sufficient to reduce the concentration of OTC from 3.9 mg/g to less than the detection limit (i.e., 0.25 ng/g). Biochemical methane potential tests showed that the cumulative methane production over 23 d was 73.7, 215.9, 656.8, and 439.0NmL CH4/gVS for the raw residue and the residue treated at 130, 150, and 170°C for 5 min, respectively. At the same time, the abundances of tetracycline resistance genes were reduced by hydrothermal treatments followed by anaerobic digestion. Conclusively, it is suggested that hydrothermal treatment at 150°C for 5 min was found beneficial for OTC fermentation residues ensuring the removal of OTC and further use of the residue for anaerobic digestion.

show abstract

Section: Methane Formation Potential Of the Hydrolyzed Residuementioning

confidence: 99%

Hydrothermal pretreatment of oxytetracycline fermentation residue: Removal of oxytetracycline and increasing the potential for anaerobic digestion

Awad

Tian

Zhang

et al. 2020

Environmental Engineering Research

View full text Add to dashboard Cite

show abstract

“…This way, the biodegradability of the substrate is increased and bioreactor performance enhanced. Several reports have evaluated the benefits of thermal hydrolysis, studying the temperature range (120-170 • C) [3][4][5], the effect on solubilization and different types of substrates [6][7][8][9] along with the effect on methane production. An increase in organic matter recalcitrance with the severity of the process has been demonstrated [10][11][12], which may adversely affect the outcome of a subsequent digestion step.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of Coupling Anaerobic Digestion and Hydrothermal Carbonization: Analyzing Thermal Demand

et al. 2021

View full text Add to dashboard Cite

Anaerobic digestion is a biological process with wide application for the treatment of high organic-containing streams. The production of biogas and the lack of oxygen requirements are the main energetic advantages of this process. However, the digested stream may not readily find a final disposal outlet under certain circumstances. The present manuscript analyzed the feasibility of valorizing digestate by the hydrothermal carbonization (HTC) process. A hypothetical plant treating cattle manure and cheese whey as co-substrate (25% v/w, wet weight) was studied. The global performance was evaluated using available data reported in the literature. The best configuration was digestion as a first stage with the subsequent treatment of digestate in an HTC unit. The treatment of manure as sole substrate reported a value of 752 m3/d of biogas which could be increased to 1076 m3/d (43% increase) when coupling an HTC unit for digestate post-treatment and the introduction of the co-substrate. However, the high energy demand of the combined configurations indicated, as the best alternative, the valorization of just a fraction (15%) of digestate to provide the benefits of enhancing biogas production. This configuration presented a much better energy performance than the thermal hydrolysis pre-treatment of manure. The increase in biogas production does not compensate for the high energy demand of the pre-treatment unit. However, several technical factors still need further research to make this alternative a reality, as it is the handling and pumping of high solid slurries that significantly affects the energy demand of the thermal treatment units and the possible toxicity of hydrochar when used in a biological process.

show abstract

Thermal treatment’s enhancement on high solid anaerobic digestion: effects of temperature and reaction time

Lin

Liu

et al. 2021

Environ Sci Pollut Res

View full text Add to dashboard Cite

Anaerobic digestion of spectinomycin mycelial residues pretreated by thermal hydrolysis: removal of spectinomycin and enhancement of biogas production

Cited by 13 publications

References 49 publications

Hydrothermal pretreatment of oxytetracycline fermentation residue: Removal of oxytetracycline and increasing the potential for anaerobic digestion

Hydrothermal pretreatment of oxytetracycline fermentation residue: Removal of oxytetracycline and increasing the potential for anaerobic digestion

Feasibility of Coupling Anaerobic Digestion and Hydrothermal Carbonization: Analyzing Thermal Demand

Thermal treatment’s enhancement on high solid anaerobic digestion: effects of temperature and reaction time

Contact Info

Product

Resources

About