Dry anaerobic digestion of cow manure and agricultural products in a full-scale plant: Efficiency and comparison with wet fermentation

Chiumenti, Alessandro; Borso, Francesco da; Limina, Sonia

doi:10.1016/j.wasman.2017.03.046

Cited by 96 publications

(43 citation statements)

References 13 publications

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“…Bench-scale studies are important to understand the principles but it is challenging to design and operate a farm-scale plant based on these microcosms [124]. Besides, the monitoring of a farm-scale plant is necessary to obtain detailed information and a better understanding of technology [125]. It also helps to discover practical operational aspects such as the length of start-up phase and energy and co-substrates input and to check if the system is sustainable on a long-term basis [36,125].…”

Section: Pilot-scale and Farm-scale Plants For Ad Of Rsmentioning

confidence: 99%

“…Besides, the monitoring of a farm-scale plant is necessary to obtain detailed information and a better understanding of technology [125]. It also helps to discover practical operational aspects such as the length of start-up phase and energy and co-substrates input and to check if the system is sustainable on a long-term basis [36,125]. These aspects are often missed in lab tests.…”

Section: Pilot-scale and Farm-scale Plants For Ad Of Rsmentioning

confidence: 99%

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A Review on the Fate of Nutrients and Enhancement of Energy Recovery from Rice Straw through Anaerobic Digestion

2020

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Open field burning and tilling the rice straw (RS) back into the fields causes environmental threats by contributing to the increased greenhouse gas emissions. Energy and nutrient recovery from RS through anaerobic digestion (AD) is an effective solution for its utilization. Although RS has good methane potential, its characteristics make it a difficult substrate for AD. This paper reviews the characteristics of RS, mass balance, and distribution of nutrients into liquid and solid digestate in the AD. The present review also discusses the effect of temperature, co-digestion, mixing, inoculum, organic loading rate, recycling liquid digestate, the addition of trace elements, and their bioavailability on the enhancement of biogas/methane yield in the AD of RS. In addition, the digestion of RS at various scales is also covered in the review.

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Section: Pilot-scale and Farm-scale Plants For Ad Of Rsmentioning

confidence: 99%

Section: Pilot-scale and Farm-scale Plants For Ad Of Rsmentioning

confidence: 99%

A Review on the Fate of Nutrients and Enhancement of Energy Recovery from Rice Straw through Anaerobic Digestion

2020

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“…The AD process can be classified according to the total solid (TS) concentration: wet digestion (WD) is typically characterized as TS concentrations below 20%, and dry anaerobic digestion or solid state anaerobic digestion (SSAD) has TS concentrations higher than 20% (Chiumenti et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…This process was originally applied to treat the organic fraction of municipal solid waste (Li et al, 2011) and has recently been proposed for use in the treatment of agricultural, livestock and poultry wastes, mixed with energy crops, to obtain a solidphase stabilized product (Chiumenti et al, 2017). Nonetheless, SSAD technology still has a series of aspects that must be improved and studied in greater depth for the maturation of the technology and to diversify the type of substrate used.…”

Section: Introductionmentioning

confidence: 99%

Poultry Litter Solid State Anaerobic Digestion: Effect of Digestate Recirculation Intervals and Substrate/Inoculum Ratios on Process Efficiency

Marchioro

Steinmetz

Amaral

et al. 2018

Front. Sustain. Food Syst.

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This study evaluated the effect of the substrate:inoculum ratio and digestate recirculation conditions on the biogas and methane yield, free ammonia concentration and solid phase agronomic quality (after treatment) of poultry litter solid state anaerobic digestion (SSAD). Experimental tests were conducted using a central composite design (2²), with four trials at the factorial points and three at the central points, using poultry litter as substrate that was collected after 12 cycles of broiler production [TS 76% (w.w −1 )]. Three laboratory-scale reactors containing 3 kg of poultry litter each were operated at mesophilic conditions (37 • C) and seven experimental runs were performed at retention time of 30 days each. There were three substrate:inoculum ratios (1:1; 1:1.66, and 1:3) and three daily recirculation intervals (2, 3, and 4 times per day), and each recirculation event lasted 15 min. The highest biogas and methane yields were183 L Nbiogas .kg VSadd , respectively, and they were obtained at the substrate:inoculum ratio of 1:3 with a digestate recirculation frequency of four times a day. Digestate recirculation was the variable that influenced the concentration of free ammonia; the most frequently recirculated tests had lower concentrations (below 60 mgNH 3 .L −1 ). After the SSAD process, we identified a transfer of nutrients (N, P, K) from the solid phase to the liquid phase. The nutrient concentrations in the solid phase (N out = 11 g.kg −1 , K out = 5 g.kg −1 , and P out = 7 g.kg −1 ) indicated that the digested poultry litter still has potential for use in fertilization. In this study, it was estimated that 90 m 3 biogas .tons −1 poultrylitter was generated using SSAD. Whereas 100 tons of poultry litter are produced after 12 production cycles, the biogas generation capacity reaches 9,000 m 3 /year. In this scenario, farmers can use biogas from poultry litter SSAD as an additional source of energy.

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“…Methane fermentation as one of the stabilization methods is a process that has an advantage over others due to the possibility of using the produced biogas for energy purposes. An additional benefit of fermentation is the production of fertilizers and the reduction of greenhouse gas and odor emissions [1]. Biogas can be produced from a wide range of municipal waste as well as from the agricultural and food industry.…”

Section: Introductionmentioning

confidence: 99%

An evaluation of the fermentation efficiency of selected substrates from the agri-food sector on a physical, chemical and biological basis

Suchowska-Kisielewicz

2018

E3S Web Conf.

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Abstract. Methane fermentation has been a waste management technique for years. The main advantages of fermentation include the production of electricity and heat from biogas or biomethane, which are a source of renewable energy. In order for the fermentation process to have good economic indicators, the continuous monitoring of process parameters is necessary. To control the fermentation process, an anaerobic test determining the biochemical methane potential (BMP) is particularly recommended. The disadvantage of this test is the long duration of measurements. Nowadays, AT4 respiration tests are increasingly used to assess the methane potential of waste. The main advantages of AT4 include: the 4-day duration of the test, the simple method for implementation and the possibility of applying the test to all types of waste. In practice, in most cases physical (VS) and chemical indicators (TOC and COD) are used to assess the suitability of substrates for fermentation and its effectiveness. However, these indicators specify only the total content of organic matter, yet do not give information on the fraction of biodegradable matter. The article presents an assessment of the efficiency of fermentation substrates selected from the agri-food sector on a physical, chemical and biological basis and presents the correlation between these indicators.

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Dry anaerobic digestion of cow manure and agricultural products in a full-scale plant: Efficiency and comparison with wet fermentation

Cited by 96 publications

References 13 publications

A Review on the Fate of Nutrients and Enhancement of Energy Recovery from Rice Straw through Anaerobic Digestion

A Review on the Fate of Nutrients and Enhancement of Energy Recovery from Rice Straw through Anaerobic Digestion

Poultry Litter Solid State Anaerobic Digestion: Effect of Digestate Recirculation Intervals and Substrate/Inoculum Ratios on Process Efficiency

An evaluation of the fermentation efficiency of selected substrates from the agri-food sector on a physical, chemical and biological basis

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