Degradation of Lignocellulosic Complex Through Production of Struvite from Digestate

Đurđević, Dinko; Hulenić, Ivona; Kulišić, Biljana

doi:10.1007/s12649-019-00637-6

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…The first two options consider utilization of digestate produced in biogas plant during AD process utilization in two manners: (1) as a replacement of solid fraction for AD feedstock, where biogas yield is increased and corn silage costs reduced (digestate recirculation-Option 2); and (2) as a valuable agricultural fertilizer which contains struvite (Option 1). The process is presented within the experiment conducted by Đurđević et al [30]. In Option 2, degradation of the lignocellulosic wall in digestate solid fraction occurs due to struvite crystallization process, mechanical separation operations and use of heat-acid treatments.…”

Section: Options For Digestate Treatmentmentioning

confidence: 99%

Anaerobic Digestate Treatment Selection Model for Biogas Plant Costs and Emissions Reduction

Đurđević

Hulenić

2020

Processes

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Agriculture is one of the leading sectors on the global level contributing to greenhouse gas (GHG) emissions increase. With the utilization of biogas production technology within the agriculture sector, ecological benefits could be achieved, with immediate economic profit. Therefore, to retain economic profit and environmental sustainability, implementation of bioeconomy principles is of key importance. This paper examines four options of digestate treatment, which is identified as one of the highest operational cost for the biogas plant. A simple and robust model in Excel Solver was developed to determine the best solution for minimising GHG emissions and maximise profit for the biogas plant operator, through an upgrade of the plant with digestate treatment technologies. The model was implemented on a case of a Croatian biogas plant and the best solution in terms of GHG reduction and profit increase proved to be fertilizer production (Option 1), through a crystallization process of struvite within the digestate. This option obtains a significant reduction in GHG emissions compared to standard biogas production without additional upgrades (Option 4), by over 90%, and increase of profit for the biogas plant operator, which diversifies the income source and creates multiple positive impacts on the environment.

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Section: Options For Digestate Treatmentmentioning

confidence: 99%

Anaerobic Digestate Treatment Selection Model for Biogas Plant Costs and Emissions Reduction

Đurđević

Hulenić

2020

Processes

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An assessment of feasibility and potential of gaseous biofuel production from agricultural/animal wastes: a case study

Ardebili

Khademalrasoul

2020

Biomass Conv. Bioref.

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Valorization of Spent Brewer’s Yeast for the Production of High-Value Products, Materials, and Biofuels and Environmental Application

et al. 2023

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Spent brewer’s yeast (SBY) is a byproduct of the brewing industry traditionally used as a feed additive, although it could have much broader applications. In this paper, a comprehensive review of valorization of SBY for the production of high-value products, new materials, and biofuels, as well as environmental application, is presented. An economic perspective is given by mirroring marketing of conventional SBY with innovative high-value products. Cascading utilization of fine chemicals, biofuels, and nutrients such as proteins, carbohydrates, and lipids released by various SBY treatments has been proposed as a means to maximize the sustainable and circular economy.

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Degradation of Lignocellulosic Complex Through Production of Struvite from Digestate

Cited by 3 publications

References 22 publications

Anaerobic Digestate Treatment Selection Model for Biogas Plant Costs and Emissions Reduction

Anaerobic Digestate Treatment Selection Model for Biogas Plant Costs and Emissions Reduction

An assessment of feasibility and potential of gaseous biofuel production from agricultural/animal wastes: a case study

Valorization of Spent Brewer’s Yeast for the Production of High-Value Products, Materials, and Biofuels and Environmental Application

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