Assessment of the Possibilities for the Use of Selected Waste in Terms of Biogas Yield and Further Use of Its Digestate in Agriculture

Niemiec, Marcin; Sikora, Jakub; Szeląg-Sikora, Anna; Gródek-Szostak, Zofia; Komorowska, Monika

doi:10.3390/ma15030988

Cited by 8 publications

(8 citation statements)

References 69 publications

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“…In the middle of the 19th century, natural sulfur circulation was disturbed by human activity. The development of industry, as well as intensive coal combustion, increased the emission of sulfur oxides into the atmosphere, and finally environmental pollution [1,9,10]. Due to this, the amount of sulfur emissions started to be controlled.…”

Section: Introductionmentioning

confidence: 99%

Environmental and Production Aspects of Using Fertilizers Based on Waste Elemental Sulfur and Organic Materials

et al. 2022

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Crop fertilization with sulfur is an important part of agricultural practices, as is the systematic increase in soil organic matter content. Materials of waste origin constitute a source of plant-available sulfur, as well as soil organic matter. The study was to verify the hypothesis assuming that combining waste sulfur pulp and its mixtures with organic materials enables simultaneous soil enrichment with readily available sulfur and organic matter. A 240-day incubation experiment was conducted, on two soils: very light and heavy; with two sulfur doses applied to each soil (20 and 40 mg S/kg d.m. for very light soil, and 30 and 60 mg S/kg d.m. for heavy soil). The sulfate sulfur content in the incubated soil material, treated with the addition of sulfur pulp and its mixtures with organic materials, increased significantly up to day 60 and then decreased. The application of these materials significantly increased the content of available sulfur and decreased the pH value of the incubated material. The effect of the introduced materials on dehydrogenase activity depended on soil granulometric composition (the impact of the applied materials on the activity of these enzymes in very light soil was small, and in heavy soil, their activity was usually limited by the presence of introduced materials). Application of the studied materials had little effect on the total organic carbon content in the incubated soil material (a significant change in the value of this parameter, in relation to the control soil, was recorded in some treatments of heavy soil).

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Section: Introductionmentioning

confidence: 99%

Environmental and Production Aspects of Using Fertilizers Based on Waste Elemental Sulfur and Organic Materials

et al. 2022

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“…Biogas production from bio-waste ranged from 285 to 404 Ndm 3 •kg −1 DM (mean value 347 ± 53 Ndm 3 •kg −1 DM) and methane production from 282 to 380 Ndm 3 •kg −1 DM (mean value 214 ± 39 Ndm 3 •kg −1 DM). These values are in the middle of the range reported in the literature for bio-waste [20,[46][47][48]. The co-digestion of food waste with lignocellulosic waste can increase methane production by about 28%.…”

Section: Discussionmentioning

confidence: 73%

Bio-Waste from Urban and Rural Areas as a Source of Biogas and Methane—A Case Study from Poland

Dronia,

Kostecki,

Połomka

et al. 2024

Energies

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The growing volume of household waste, especially bio-waste, poses a significant challenge to waste management systems. In Poland, bio-waste accounts for almost one third of total waste generation. To address this challenge, in the context of optimising the waste biomass value chain, we are investigating the potential of methane fermentation to convert bio-waste into valuable end products in the form of digestate (organic recycling) and biogas (a renewable energy source with a wide range of downstream applications). This paper presents the moisture content, loss on ignition and biogas and methane production efficiency for bio-waste and for the seven types of waste that are the main constituents of selectively collected bio-waste (meat, other edible waste (dairy), fruits and vegetables, grass, leaves, branches and the < 10 mm fraction). Data on the technological properties of bio-waste and its constituents may be of interest to a range of stakeholders. The average moisture content ranged from 41.9% (<10 mm fraction and others) to 84.4% (fruits and vegetables), and the average organic matter content of the dry weight of the waste ranged from 37.8% (<10 mm fraction and others) to 88.7% (edible constituents other than meat and fruits and vegetables). The bio-waste had an average moisture content of 71.3 ± 1.7% and loss on ignition of 68.6 ± 1.7%. Biogas production from selectively collected bio-waste ranged from 285 to 404 Ndm3∙kg−1 DM (mean: 347 ± 53 Ndm3∙kg−1 DM), and methane production ranged from 191 to 271 Ndm3∙kg−1 DM (mean: 215 ± 33 Ndm3∙kg−1 DM).

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“…The share of soilless cultivation under cover in these countries ranges from 80 to 100%. In most EU countries, the share of water recirculation installations comprises no more than 10% of all soilless cultivations [39,40]. The introduction of soilless cultivations only makes sense when using highly efficient methods to calculate the water requirements of plants and nutrient recirculation.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Sheep Wool as a Substrate for Hydroponic Cucumber Cultivation

et al. 2023

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The problem of the use and disposal of horticultural substrates is an important element of the optimization of plastic greenhouse production in terms of economic and environmental efficiency. The production of mineral substrates is associated with a high energy expenditure, which generates costs and greenhouse gas (GHG) emissions. An important factor is also the transport of professional substrates over long distances. The research objective was to evaluate the possibility of using sheep wool to create horticultural substrates in the hydroponic production of cucumber. The modifier of production technology was the use of substrates of various origins. The experiment was based on the use of two substrates: one was a conventional substrate, made of mineral wool, and the other was made of greasy Gissar sheep wool, which is considered waste or a nuisance byproduct of sheep farming today. The adopted functional unit was 1 ton of commercial cucumber yield. The boundaries of the system were soil formation, fertilization, irrigation, and harvesting. The amount of GHG emissions was calculated in accordance with the ISO 14040 and ISO 14044 standards. The results of the experiment show that the use of sheep wool as a substrate in the hydroponic cultivation of cucumbers reduced yield by approximately 8%, but it allowed for a higher efficiency of water and mineral fertilizer use per crop mass unit. Within the adopted system boundary, the value of the carbon footprint in the object with the conventional substrate was 276.9 kg CO2 eq · Mg−1. The value of this parameter for the object with the sheep wool was 193.9 kg CO2 eq · Mg−1. The use of sheep wool did not increase the phytosanitary risk of the cultivated plants. An important goal for achieving sustainability, especially in food production, is to use materials that are easily recyclable and renewable, locally available, and environmentally friendly. The use of sheep wool as a substrate for soilless plastic greenhouse cultivation is a rational solution, as this material consists of 60% animal protein fibers, 10% fat, 15% moisture, 10% sheep sweat, and an average of 5% impurities. This makes it an easily recyclable, easily renewable, and environmentally friendly source of raw material for hydroponic substrates in food production, contrary to rockwool, which produces waste that is difficult to manage and a nuisance to the natural environment. In the countries of Central Asia, the sheep population is over 20 million; therefore, the potential for using sheep wool material for agricultural production is significant.

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Assessment of the Possibilities for the Use of Selected Waste in Terms of Biogas Yield and Further Use of Its Digestate in Agriculture

Cited by 8 publications

References 69 publications

Environmental and Production Aspects of Using Fertilizers Based on Waste Elemental Sulfur and Organic Materials

Environmental and Production Aspects of Using Fertilizers Based on Waste Elemental Sulfur and Organic Materials

Bio-Waste from Urban and Rural Areas as a Source of Biogas and Methane—A Case Study from Poland

Evaluation of Sheep Wool as a Substrate for Hydroponic Cucumber Cultivation

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