Impact of the substrate loading regime and phosphoric acid supplementation on performance of biogas reactors and microbial community dynamics during anaerobic digestion of chicken wastes

Belostotskiy, Dmitry E.; Ziganshina, Elvira E.; Siniagina, Maria; Boulygina, Eugenia A.; Miluykov, Vasili; Ziganshin, Ayrat M.

doi:10.1016/j.biortech.2015.06.066

Cited by 44 publications

(15 citation statements)

References 35 publications

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“…With similar overall process rates after the disturbance, the adapted microbiome was functional redundant [58]. Similar results regarding the microbiome reorganization were published previously e.g., [83,[90][91][92][93]. However, another study investigated the impact of different ammonium sources (animal manure and ammonium carbonate) to reveal whether there is a relation between the microbial diversity level (structure and function) and the stress tolerance potential of the microbial community [90].…”

Section: Ammonium/ammonia and Hydrogen Sulphide Inhibitionsupporting

confidence: 81%

Process Disturbances in Agricultural Biogas Production—Causes, Mechanisms and Effects on the Biogas Microbiome: A Review

2019

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Disturbances of the anaerobic digestion process reduce the economic and environmental performance of biogas systems. A better understanding of the highly complex process is of crucial importance in order to avoid disturbances. This review defines process disturbances as significant changes in the functionality within the microbial community leading to unacceptable and severe decreases in biogas production and requiring an active counteraction to be overcome. The main types of process disturbances in agricultural biogas production are classified as unfavorable process temperatures, fluctuations in the availability of macro- and micronutrients (feedstock variability), overload of the microbial degradation potential, process-related accumulation of inhibiting metabolites such as hydrogen (H2), ammonium/ammonia (NH4+/NH3) or hydrogen sulphide (H2S) and inhibition by other organic and inorganic toxicants. Causes, mechanisms and effects on the biogas microbiome are discussed. The need for a knowledge-based microbiome management to ensure a stable and efficient production of biogas with low susceptibility to disturbances is derived and an outlook on potential future process monitoring and control by means of microbial indicators is provided.

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Section: Ammonium/ammonia and Hydrogen Sulphide Inhibitionsupporting

confidence: 81%

Process Disturbances in Agricultural Biogas Production—Causes, Mechanisms and Effects on the Biogas Microbiome: A Review

2019

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“…While ammonia is a nutrient source that allows for growth and functioning of microorganisms responsible for the fermentation process, its continuous growth inhibits the anaerobic decomposition and methane production [37][38]. Therefore, it is necessary to remove ammonium by precipitation of struvite, utilization of sorption deposits or constant control of pH and temperature in the fermentation chamber, which can be difficult to perform [39][40][41][42]. Other proposed solutions are the use of additional biomass available in the immediate proximity of the farm and formation of a fermented mixture of appropriate proportions, which will allow for proper decomposition in anaerobic conditions [43].…”

Section: Energy Analysismentioning

confidence: 99%

Biogas plant on an industrial farm as an effective way of utilizing animal waste

et al. 2018

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Industrial farms pose a serious threat to both people and the environment. The reason is that animal waste are produced in large quantities, which is a source of biogenic substances. Their irrational use, which is often common on industrial farms due to the limited area for fertilization, can lead to the eutrophication of water tanks and soils, and even to contamination with heavy metals and disease-causing microorganisms and pathogens. The economy of animal feces is accompanied by greenhouse emission and odors, the resulting emissions of volatile compounds also lead to the formation of acid rain. In view of the above, the possibilities of their management, which will be safe for ecosystems, are being sought for. While aeration, composting or fertilization of animal manure does not fully solve environmental protection or profitability issues, their anaerobic treatment allows not only for safe utilization, but also for energy production. Thus, the possibility of managing animal waste from a poultry, cattle and pig farms in biogas plants was presented. The presented calculations have slown that using them as a substrate in the fermentation process allows for effective utilization of animal manure being hazardous to the environment, in particular in the case of industrial farms.

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“…However, as with any anaerobic treatment technology, there are a range of additional anthropogenic and environmental factors that will affect the biology and consequently, degradation rates in anaerobic digesters. These include: wastewater composition [9][10][11], hydraulic and organic loading rates [12][13][14][15][16], nitrogen and phosphorous availability [17,18], and trace element availability [19][20][21]. It is increasingly understood that if we are to engineer the biology in AD systems, we must improve our understanding of the biology in relation to process performance and tease out the identity of organisms that indicate both optimal and failing performance [22].…”

Section: Introductionmentioning

confidence: 99%

Solar Septic Tank: Next Generation Sequencing Reveals Effluent Microbial Community Composition as a Useful Index of System Performance

Connelly

Pussayanavin

Randle-Boggis

et al. 2019

Water

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Septic tanks are widely deployed for off-grid sewage management but are typified by poor treatment performance, discharge of polluting effluents and the requirement for frequent de-sludging. The Solar Septic Tank (SST) is a novel septic tank design that uses passive heat from the sun to raise in-tank temperatures and improves solids degradation, resulting in a cleaner effluent. Treatment has been shown to exceed conventional systems, however, the underlying biology driving treatment in the system is poorly understood. We used next generation sequencing (Illumina Miseq (San Diego, CA, USA), V4 region 16S DNA) to monitor the microbiology in the sludge and effluent of two mature systems, a conventional septic tank and an SST, during four months of routine operation in Bangkok, Thailand, and evaluated the ecology against a suite of operating and performance data collected during the same time period. Significant differences were observed between the microbiome of the sludge and effluent in each system and the dominant taxa in each appeared persistent over time. Furthermore, variation in the microbial community composition in the system effluents correlated with effluent water quality and treatment performance parameters, including the removal of chemical and biochemical oxygen demand and the concentration of fecal and total coliforms in the effluent. Thus, we propose that a wide-scale survey of the biology underlying decentralised biotechnologies for sewage treatment such as the SST could be conducted by sampling system effluent rather than sampling sludge. This is advantageous as accessing sludge during sampling is both hazardous and potentially disruptive to the anaerobic methanogenic consortia underlying treatment in the systems.

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Impact of the substrate loading regime and phosphoric acid supplementation on performance of biogas reactors and microbial community dynamics during anaerobic digestion of chicken wastes

Cited by 44 publications

References 35 publications

Process Disturbances in Agricultural Biogas Production—Causes, Mechanisms and Effects on the Biogas Microbiome: A Review

Process Disturbances in Agricultural Biogas Production—Causes, Mechanisms and Effects on the Biogas Microbiome: A Review

Biogas plant on an industrial farm as an effective way of utilizing animal waste

Solar Septic Tank: Next Generation Sequencing Reveals Effluent Microbial Community Composition as a Useful Index of System Performance

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