Optimizing nitrogenous organic wastewater treatment through integration of organic capture, anaerobic digestion, and anammox technologies: sustainability and challenges

Huang, Jianming; Wang, Chunrong; Zhang, Shujun; Han, Xiaoyu; Feng, Renjie; Li, Yang; Huang, Xiaoyan; Wang, Jianbing

doi:10.1007/s11356-023-27410-6

Cited by 3 publications

(1 citation statement)

References 116 publications

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“…However, for hydrolytic bacteria, acid-forming bacteria, and methanogens, the environmental requirement, thermodynamic properties, and kinetic constants are discrepant, which results in low overall AD efficiency [9]. To enhance the overall AD efficiency of anaerobic digestion, "two-phase digestion" is used to separate acid-producing and methanogenic phases [10]. Two-phase AD is required to enable the production of organic acids (acidification stage) and methane (methanogenesis step) to have their suitable environmental conditions, which helps to improve the stability and efficiency of the whole AD process [11].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Thermophilic–Mesophilic and Mesophilic–Thermophilic Two-Phase High-Solid Sludge Anaerobic Digestion at Different Inoculation Proportions: Digestion Performance and Microbial Diversity

Wang,

et al. 2023

Microorganisms

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This study investigated the performance of thermophilic–mesophilic (T-M) and mesophilic–thermophilic (M-T) two-phase sludge anaerobic digestion at different inoculation proportions after a change in digestion temperature. After temperature change, the pH, total ammonia nitrogen (TAN), free ammonia nitrogen (FAN), solubility chemical oxygen demand (SCOD), and total alkalinity (TA) levels of two-phase digesters were between thermophilic control digesters and mesophilic control digesters. However, the volatile fatty acid (VFA) levels of two-phase digesters were higher than those of thermophilic or mesophilic control digesters. The bacteria communities of M-T two-phase digesters were more diverse than those of T-M. After a change in digestion temperature, the bacterial community was dominated by Coprothermobacter. After a change of digestion temperature, the relative abundance (RA) of Methanobacterium, Methanosaeta, and Methanospirillum of M-T two-phase digesters was higher than that of T-M two-phase digesters. In comparison, the RA of Methanosarcina of T-M two-phase digesters was higher than that of M-T two-phase digesters. The ultimate methane yields of thermophilic control digesters were greater than those of mesophilic control digesters. Nevertheless, the ultimate methane yield levels of M-T two-phase digesters were greater than those of T-M two-phase digesters. The ultimate methane yields of all two-phase digesters presented an earlier increase and later decrease trend with the increasing inoculation proportion. Optimal methane production condition was achieved when 15% of sludge (T-M15) was inoculated under mesophilic–thermophilic conditions, which promoted 123.6% (based on mesophilic control) or 27.4% (based on thermophilic control). An optimal inoculation proportion (about 15%) balanced the number and activity of methanogens of high-solid sludge anaerobic digestion.

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Section: Introductionmentioning

confidence: 99%

Comparison of Thermophilic–Mesophilic and Mesophilic–Thermophilic Two-Phase High-Solid Sludge Anaerobic Digestion at Different Inoculation Proportions: Digestion Performance and Microbial Diversity

Wang,

et al. 2023

Microorganisms

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Biogas production potential of aquatic weeds as the next-generation feedstock for bioenergy production: a review

Koley,

Mukhopadhyay,

Gupta

et al. 2023

Environ Sci Pollut Res

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Aquatic weeds have exceptionally high reproduction rates, are rich in cellulose and hemicellulose, and contain a negligible amount of lignin, making them an ideal crop for the next generation of biofuels. Previously reported studies proposed that water hyacinth, water lettuce, common duckweeds, and water spinach can be managed or utilized using different advanced techniques, while anaerobic digestion is one of the feasible and cost-effective techniques to manage these biowastes. The present study was carried out to investigate the potential of utilizing four common aquatic weed species (water hyacinth, water lettuce, common duckweeds, and water spinach) as substrates for anaerobic digestion in order to produce biogas. The high reproduction rates, high cellulose and hemicellulose content, coupled with low lignin content, of these aquatic weeds make them ideal candidates for this purpose. The study evaluated the feasibility of anaerobic digestion as a management method for these aquatic weeds, which are often considered invasive and di cult to control. The study provides an overview of the characteristics and management strategies of these aquatic weeds in relation to biogas production, with possible future developments in the eld. * MLCH4/kgVSadded ** l/g VS *** L kg-1 VS ****(ml) /gVs(added)/g plant

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Critical analysis on the transformation and upgrading strategy of Chinese municipal wastewater treatment plants: Towards sustainable water remediation and zero carbon emissions

Zhang

Zhao

Jiao

et al. 2023

Science of The Total Environment

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Optimizing nitrogenous organic wastewater treatment through integration of organic capture, anaerobic digestion, and anammox technologies: sustainability and challenges

Cited by 3 publications

References 116 publications

Comparison of Thermophilic–Mesophilic and Mesophilic–Thermophilic Two-Phase High-Solid Sludge Anaerobic Digestion at Different Inoculation Proportions: Digestion Performance and Microbial Diversity

Comparison of Thermophilic–Mesophilic and Mesophilic–Thermophilic Two-Phase High-Solid Sludge Anaerobic Digestion at Different Inoculation Proportions: Digestion Performance and Microbial Diversity

Biogas production potential of aquatic weeds as the next-generation feedstock for bioenergy production: a review

Critical analysis on the transformation and upgrading strategy of Chinese municipal wastewater treatment plants: Towards sustainable water remediation and zero carbon emissions

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