Effect of Pretreatment on Hydraulic Performance of the Integrated Membrane Process for Concentrating Nutrient in Biogas Digestate from Swine Manure

Zhan, Yuanhang; Yin, Fang; Yue, Caide; Zhu, Jun; Zhu, Zhiping; Zou, Mengyuan; Dong, Huijuan

doi:10.3390/membranes10100249

Cited by 12 publications

(5 citation statements)

References 44 publications

(60 reference statements)

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“…The quality and structure of organic matter in biogas digestates depends on the raw materials for biogas production and the technology applied, and this can affect availability of heavy metals (Törnwall et al 2017;Kupper et al 2014). For example, pig manure contains more potassium (Zhan et al 2020;Guilayn et al 2019), while co-fermented cattle manure increases phosphorus content (Bachmann et al 2011). Thus, digestate (as an organo-mineral fertilizer) can provide the same amount of nutrients as mineral (Riva et al 2016) or organic fertilizers like manure (Alburquerque et al 2012).…”

Section: Literature Reviewmentioning

confidence: 99%

An advanced European overview of the bioenergy efficiency of using digestate from biogas plants when growing agricultural crops

Lohosha,

Palamarchuk,

Krychkovskyi

et al. 2024

Polityka Energetyczna – Energy Policy Journal

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The paper highlights calculations of bioenergy indicators when growing corn for grain and vegetable crops in Ukraine. The research results indicate the economic benefit of growing these crops for all the variants studied. Our research established that an increase in the bioenergy efficiency of the production of these crops is achieved due to the use of different rates of fertilizer application. The increase in productivity that was obtained as a result of the implementation of farming practices exceeds additional costs associated with the use of fertilizers. This confirms the economic benefit of producing these types of crops due to the enhanced bioenergy efficiency achieved through the optimal application of fertilizer. The conducted research confirms the high energy efficiency of the bio-organic fertilizer (digestate) and the energy-saving technology of growing crops which were studied. High values of the coeffi-cients of energy efficiency were also observed in the variants with the simultaneous application of mineral fertilizers (N 90 P 90 K 90 ) and digestate-based bio-organic fertilizer "Efluent" (55.0 t/ha) on experimental sites of corn grown for grain (3.05-3.07), carrot (1.41-1.45) and red beet (1.97-2.00), but the cost of these variants also appeared to be the highest. Scientific research has used new methods and technologies for the effective processing of livestock waste in order to obtain organic fertilizer, which can be used to improve soil fertility and increase crop yields on the one hand, and biogas production as an energy-efficient process that has significant potential for producing ecologically clean and renewable energy on the other. The proposed approach to achieving energy efficiency helps to increase crop yield without increasing fertilization costs.

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Section: Literature Reviewmentioning

confidence: 99%

An advanced European overview of the bioenergy efficiency of using digestate from biogas plants when growing agricultural crops

Lohosha,

Palamarchuk,

Krychkovskyi

et al. 2024

Polityka Energetyczna – Energy Policy Journal

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“…Micro-or ultrafiltration enables the removal of macromolecules, whereas reverse osmosis enables the separation and concentration of phosphates or other soluble compounds (Camilleri-Rumbau et al, 2021). Combining different membranes has been shown to be favorable in removal of both particle-bound and dissolved phosphorus (Vaneeckhaute et al, 2017;Zacharof et al, 2019;Zhan et al, 2020). Hence, micro-ultra-or nanofiltration has often been combined with reverse osmosis in experimental studies resulting in a set of different retentate fractions (Adam et al, 2018;Camilleri-Rumbau et al, 2021).…”

Section: Membrane Filtration Technologiesmentioning

confidence: 99%

Phosphorus retention and agronomic efficiency of refined manure-based digestate—A review

Persson

Rueda-Ayala

2022

Front. Sustain. Food Syst.

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Digestate, a by-product from anaerobic digestion of organic materials such as animal manure, is considered a suitable plant fertilizer. However, due to its bulkiness and low economic value, it is costly to transport over long distances and store for long periods. Refinement processes to valorize digestate and facilitate its handling as a fertilizer include precipitation of phosphorus-rich mineral compounds, such as struvite and calcium phosphates, membrane filtration methods that concentrate plant nutrients in organic products, and carbonization processes. However, phosphorus retention efficiency in output products from these processes can vary considerably depending on technological settings and characteristics of the digestate feedstock. The effects of phosphorus in plant fertilizers (including those analogous or comparable to refined digestate products) on agronomic productivity have been evaluated in multiple experiments. In this review, we synthesized knowledge about different refinement methods for manure-based digestate as a means to produce phosphorus fertilizers, thereby providing the potential to increase phosphorus retention in the food production chain, by combining information about phosphorus flows in digestate refinement studies and agronomic fertilizer studies. It was also sought to identify the range, uncertainty, and potential retention efficiency by agricultural crops of the original phosphorus amount in manure-based digestate. Refinement chains with solid/wet phase separation followed by struvite or calcium phosphate precipitation or membrane filtration of the wet phase and carbonization treatments of the solid phase were included. Several methods with high potential to extract phosphorus from manure-based wet phase digestate in such a way that it could be used as an efficient plant fertilizer were identified, with struvite precipitation being the most promising method. Synthesis of results from digestate refinement studies and agronomic fertilizer experiments did not support the hypothesis that solid/wet separation followed by struvite precipitation, or any other refinement combination, results in higher phosphorus retention than found for unrefined digestate. Further studies are needed on the use of the phosphorus in the solid phase digestate, primarily on phosphorus-rich soils representative of animal-dense regions, to increase understanding of the role of digestate refinement (particularly struvite precipitation) in phosphorus recycling in agricultural systems.

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“…The main drawbacks include the high upfront costs [40] and the tendency for membrane fouling and clogging, which can lead to decreased performance and significant operational expenses [41]. Comprehensive exploration has been conducted on a wide range of membrane processes for the treatment of WD: microfiltration [40,42], ultrafiltration [43,44], nanofiltration [45,46], reverse osmosis [45,46], and forward osmosis [41]. However, membrane technology generates a retentate with a higher concentration of pollutants and pathogens compared to the original material that will also need special management before disposal.…”

Section: Introductionmentioning

confidence: 99%

Disinfection of Digestate Effluents Using Photocatalytic Nanofiltration

Chioti¹,

Sarikaki²,

Tsioni³

et al. 2023

Fermentation

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The disinfection properties of photocatalysis on liquid digestate derived from biogas plants have been investigated for the first time. The study presents the physiological characteristics of liquid digestate retrieved from various biogas plants based in northern Greece, revealing the heterogeneity of this matrix. Preliminary photocatalysis experiments conducted on inoculated liquid digestate samples showed that disinfection was possible when a pre-treated digestate underwent a combination of centrifuge–flocculation–μfiltration after 5.5 h with 0.7 g/L suspended TiO2 under UVA illumination. To explore the feasibility of an industrial application based on this concept, a novel design photocatalytic nanofiltration reactor was implemented for disinfection experiments on pre-treated liquid digestate. The synergistic action of photocatalysis during nanofiltration alleviated the leakage phenomena, and both the retentate and permeate effluents had lower concentrations of pathogens by approximately 1–2 log10 cfu/mL. This work sets out the basis for the efficient operation and engineering application of collaborative technology, with photocatalysis as the final step for liquid digestate sanitation and reusable water recovery.

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Effect of Pretreatment on Hydraulic Performance of the Integrated Membrane Process for Concentrating Nutrient in Biogas Digestate from Swine Manure

Cited by 12 publications

References 44 publications

An advanced European overview of the bioenergy efficiency of using digestate from biogas plants when growing agricultural crops

An advanced European overview of the bioenergy efficiency of using digestate from biogas plants when growing agricultural crops

Phosphorus retention and agronomic efficiency of refined manure-based digestate—A review

Disinfection of Digestate Effluents Using Photocatalytic Nanofiltration

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