Chicken Manure Pretreatment for Enhancing Biogas and Methane Production

Konkol, Izabela; Świerczek, Lesław; Cenian, Adam

doi:10.3390/en16145442

Cited by 3 publications

(1 citation statement)

References 65 publications

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“…Different techniques and technologies [1], such as anaerobic digestion [2,3], hydrogenation, pyrolysis, and gasification [4,5], can be used for energy recovery and for the reduction of secondary products of poultry farms. In rural areas of Europe, biogas plants using biomass and animal waste are often found [6,7].…”

Section: Introductionmentioning

confidence: 99%

Possibilities of Climate Control of Poultry Complexes through Co-Combustion of Poultry Waste–Solid Biomass for Agriculture in Romania

Lazaroiu,

Mihaescu,

Grigoriu

et al. 2024

Agriculture

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The dynamics of poultry waste co-combustion with solid biomass has been theoretically and experimentally analyzed by authors in several works. The current work is focused on a case study regarding the energy recovery from poultry waste in order to use it for heating a 1000 m3 chicken rearing complex, considering the specific climatic conditions in Romania. Even if biomass has significant national potential, there are only a few experimental incentives in our country to use it for energy production. Since poultry manure is characterized by high moisture and low calorific value, its co-combustion with solid biomass was chosen. Thus, laboratory experiments involving the combustion of 20–30% poultry waste were carried out on a 55 kW pilot boiler. This is an environmentally friendly and low-cost approach. The tests showed that phosphorus and potassium are concentrated by the combustible mass disappearance in the ash (P = 3.2–5.5% and K = 2.2–3.8%), leading to the conclusion that it represents a much more valuable fertilizer than raw waste, since it is lighter and much easier to store, transport, and spread over the agricultural area. The poultry waste mix with solid biomass was taken into account for heating a chicken rearing hall module by considering the needs of each period (cycle) in the development of the chicken-bird flow in accordance with a temperate-continental climate, such as Romania’s climate. The resulting annual fuel consumption is 53.27 t. This quantity represents 42.60 t of biomass and 10.67 t of poultry manure. The co-combustion showed pollutant emissions within the legal limits and no presence of ammonia, which was incinerated on the biomass layer surface.

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Section: Introductionmentioning

confidence: 99%

Possibilities of Climate Control of Poultry Complexes through Co-Combustion of Poultry Waste–Solid Biomass for Agriculture in Romania

Lazaroiu,

Mihaescu,

Grigoriu

et al. 2024

Agriculture

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Stimulating Methane Production from Poultry Manure Digest with Sewage Sludge and Organic Waste by Thermal Pretreatment and Adding Iron or Sodium Hydroxide

Jasińska,

Grosser,

Meers

et al. 2024

Energies

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The European Union’s energy policy favors increasing the share of renewable energy in total energy production. In this context, the co-digestion of various waste streams seems an interesting option. This study aimed to determine the effect of selected pretreatment methods on the efficiency and kinetics of the co-digestion process of poultry manure with sewage sludge and organic waste. This research was carried out in four stages: (1) the selection of the third component of the co-digestion mixture; (2) the determination of the most favorable inoculum-to-substrate ratio for the co-digestion mixture; (3) the selection of the most favorable pretreatment parameters based on changes in volatile fatty acids, ammonium nitrogen, extracellular polymers substances (EPS) and non-purgeable organic carbon (NPOC); and (4) the evaluation of anaerobic co-digestion based on the result of the BMP tests and kinetic studies. All the pretreatment methods increased the degree of organic matter liquefaction as measured by the NPOC changes. Waste with a high fat content showed the highest methane potential. The addition of grease trap sludge to feedstock increased methane yield from 320 mL/g VSadd to 340 mL/g VSadd. An optimal inoculum-to-substrate ratio was 2. The pretreatment methods, especially the thermochemical one with NaOH, increased the liquefaction of organic matter and the methane yield, which increased from 340 mL/g VSadd to 501 mL/g VSadd (trial with 4.5 g/L NaoH).

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Goat Manure Potential as a Substrate for Biomethane Production—An Experiment for Photofermentation

Hołaj-Krzak,

Konieczna,

Borek

et al. 2024

Energies

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This article presents the current state of biogas (biomethane) production technology—an example of the use of goat manure in terms of photofermentation efficiency. The theoretical and experimental potential of biomethane using biodegradability for anaerobic fermentation of goat manure was indicated. Goat manure was tested for its elemental composition to determine the suitability of this raw material for biogas production. The quality of biogas produced under atmospheric conditions from goat manure placed in a reactor (photodigester) was assessed. An attempt was made to determine the process conditions for immobilization on a goat manure bed (depending on the research material collected), which allows for demonstrating the activity of the fermentation bacterial flora, thus influencing the amount of biogas (biomethane) produced in the reactor. A mechanism for the photofermentation process involving the production of biomethane was developed. The novelty of this article is the development of the use of goat manure in an innovative way, pointing to the development of the biomethane industry. When comparing goat manure, active group (compact bed), it should be noted that K 3.132%, Na 0.266%, Ca 1.909% and Mg 0.993% are lower values compared to the material with values of K 3.397%, Na 0.284%, Ca 1.813% and Mg 0.990% which are higher. This is undoubtedly due to the presence of nutrients in the deposit that support the biomethane production process. The active group (compact bed) material A shows a dynamic increase in biomethane production with lower nutrient values. However, material B, having a higher percentage of ingredients, shows stabilization of biomethane production after the sixth month of the process. Technological trends and future prospects for the biomethane sector were initiated.

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Chicken Manure Pretreatment for Enhancing Biogas and Methane Production

Cited by 3 publications

References 65 publications

Possibilities of Climate Control of Poultry Complexes through Co-Combustion of Poultry Waste–Solid Biomass for Agriculture in Romania

Possibilities of Climate Control of Poultry Complexes through Co-Combustion of Poultry Waste–Solid Biomass for Agriculture in Romania

Stimulating Methane Production from Poultry Manure Digest with Sewage Sludge and Organic Waste by Thermal Pretreatment and Adding Iron or Sodium Hydroxide

Goat Manure Potential as a Substrate for Biomethane Production—An Experiment for Photofermentation

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