Assessment of the fertiliser potential of digestates from farm and agroindustrial residues

Alburquerque, José Antonio; Fuente, Carlos de la; Ferrer-Costa, Alicia; Carrasco, L.; Cegarra, J.; Abad, M.; Bernal, M.P.

doi:10.1016/j.biombioe.2012.02.018

Cited by 417 publications

(254 citation statements)

References 17 publications

Supporting

Mentioning

208

Contrasting

Unclassified

Order By: Relevance

“…In addition to the notable CH 4 volumes, the anaerobic digestion of pretreated wastes generates a slurry exploitable for agronomic purposes [41,42]. Indeed, the values of chemical parameters detected on digested samples (Table 5) were comparable with the characteristics of digestates of livestock manure and maize-oat silage [43]. Albuquerque et al [43] proved that this type of digestates can be effectively used as organic fertilizer if an adequate utilization modality is adopted to control the salinity values.…”

Section: Anaerobic Digestion Testsmentioning

confidence: 95%

Energetic Valorization of Wet Olive Mill Wastes through a Suitable Integrated Treatment: H2O2 with Lime and Anaerobic Digestion

2016

View full text Add to dashboard Cite

Abstract:In the Mediterranean region, the disposal of residues of olive oil industries represents an important environmental issue. In recent years, many techniques were proposed to improve the characteristics of these wastes with the aim to use them for methane generation in anaerobic digestion processes. Nevertheless, these techniques, in many cases, result costly as well as difficult to perform. In the present work, a simple and useful process that exploits H 2 O 2 in conjunction with lime is developed to enhance the anaerobic biodegradability of wet olive mill wastes (WMOW). Several tests were performed to investigate the influence of lime amount and H 2 O 2 addition modality. The treatment efficiency was positively affected by the increase of lime dosage and by the sequential addition of hydrogen peroxide. The developed process allows reaching phenols abatements up to 80% and volatile fatty acids productions up to 90% by using H 2 O 2 and Ca(OH) 2 amounts of 0.05 gH 2 O 2 /gCOD and 35 g/L, respectively. The results of many batch anaerobic digestion tests, carried out by means of laboratory equipment, proved that the biogas production from fresh wet olive mill wastes is hardly achievable. On the contrary, organic matter abatements, around to 78%, and great methane yields, up to 0.34-0.35 L CH4 /g CODremoved , were obtained on pretreated wastes.

show abstract

Section: Anaerobic Digestion Testsmentioning

confidence: 95%

Energetic Valorization of Wet Olive Mill Wastes through a Suitable Integrated Treatment: H2O2 with Lime and Anaerobic Digestion

2016

View full text Add to dashboard Cite

show abstract

“…Germany expects a 30% increase of the current 7000 small and large scale on farm AD systems by 2020 [4]. However, constraints associated with digestate utilization or disposal includes physical and chemical (heavy metals and organic pollutants) impurities; pathogens and biological matter concentrations [7]; distribution and mineralization dynamics of digestate nutrients in soil; and quality management [8]. Many studies delineated the merits of the liquid (digestate with total solid (TS) range of 0.5 to 15%) and solid (digestate with TS > 15%) residues [9] as bio-fertilizers [10,11].…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Analysis of Energy Production from Food Waste through Anaerobic Digestion, Pyrolysis and Integrated Energy System

et al. 2017

View full text Add to dashboard Cite

Abstract:The environmental performance of industrial anaerobic digestion (AD), pyrolysis, and integrated system (AD sequence with pyrolysis) on food waste treatment were evaluated using life cycle assessment. The integrated treatment system indicated similar environmental benefits to AD with the highest benefits in climate change and water depletion in addition to the increased energy generation potential and the production of valuable products (biochar and bio-oil). Pyrolysis results illustrated higher impact across water, fossil fuel, and mineral depletion, although still providing a better option than conventional landfilling of food waste. The dewatering phase in the AD process accounted for 70% of the treatment impact while the pre-treatment of the food waste was responsible for the main burden in the pyrolysis process. The study indicated that the three treatment options of food waste management are environmentally more favorable than the conventional landfilling of the wastes.

show abstract

“…77 From that point of view, this system introduces an environment-friendly way of appropriate waste management. An attractive benefit of this system for rural people is that the raw slurry discharged from the digester outlet can be used as fish nutrition in pond or fish farm adjacent to the plant, and also as quality biofertilizer 21,[78][79][80][81][82][83][84] in agriculture.…”

Section: Case-4: Cooking Benefitsmentioning

confidence: 99%

A practical biogas based energy neutral home system for rural communities of Bangladesh

Das

Ehsan

Kader

et al. 2016

Journal of Renewable and Sustainable Energy

View full text Add to dashboard Cite

Growing demand of energy consumption, subsequent increase in energy generation costs, and increased greenhouse gas (GHG) emissions, as well as global warming from the conventional energy sources, encourages interest worldwide to bring a higher percentage of renewable energy sources such as biogas into the energy mix to build a climate friendly environment for the future. Moreover, due to high investment and maintenance costs, governments are not providing enough support for grid extension and delivering electricity to remote locations or rural areas, in particular, in under-developing countries like Bangladesh. Therefore, this paper presents an Energy Neutral Home System (ENHS) that can meet all its energy requirements from low-cost, locally available, nonpolluting biogas generated from animal waste, in particular, chicken and cow manure. The proposed ENHS has been developed for rural community, typically an area of 200 families, and will not only provide cooking gas and sustainable and affordable power supply to the community with low emissions, but will also facilitate high quality fertilizer for agricultural purposes. In-depth analysis clearly demonstrates that the proposed ENHS not only offers electricity and cooking gas to the community with the lowest costs, but also reduces the energy crisis and GHG emissions and can play an active role in developing socio-economic infrastructure of rural communities in Bangladesh in many ways. V C 2016 AIP Publishing LLC.

show abstract

Assessment of the fertiliser potential of digestates from farm and agroindustrial residues

Cited by 417 publications

References 17 publications

Energetic Valorization of Wet Olive Mill Wastes through a Suitable Integrated Treatment: H2O2 with Lime and Anaerobic Digestion

Energetic Valorization of Wet Olive Mill Wastes through a Suitable Integrated Treatment: H2O2 with Lime and Anaerobic Digestion

Life Cycle Analysis of Energy Production from Food Waste through Anaerobic Digestion, Pyrolysis and Integrated Energy System

A practical biogas based energy neutral home system for rural communities of Bangladesh

Contact Info

Product

Resources

About