Analysis of biodegradable waste use for energy generation in Lithuania

Katinas, Vladislovas; Marčiukaitis, Mantas; Perednis, Eugenijus; Dzenajavičienė, Eugenija Farida

doi:10.1016/j.rser.2018.11.022

Cited by 43 publications

(20 citation statements)

References 19 publications

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“…This organic waste is composed of biodegradable and non-biodegradable portions. The biodegradable portion can be converted into water, methane, and carbon dioxide by microorganisms during aerobic and anaerobic digestion processes as an effective technology for high moisture content sludge compared to other current technologies for energy recovery from the sludge, such as combustion, pyrolysis, and gasification [7][8][9][10]. Therefore, non-sustainable organic waste generated from industrial activities, such as biological sludge generated from industrial wastewater effluent treatment systems, can contribute together with sustainable organic waste generated from biomass to energy recovery to reduce environmental pollution and contribute to a gradual transition from non-renewable to renewable energy.…”

Section: Introductionmentioning

confidence: 99%

Sugarcane Bagasse as a Co-Substrate with Oil-Refinery Biological Sludge for Biogas Production Using Batch Mesophilic Anaerobic Co-Digestion Technology: Effect of Carbon/Nitrogen Ratio

Ghaleb

Kutty

Hayder

et al. 2021

Water

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Man-made organic waste leads to the rapid proliferation of pollution around the globe. Effective bio-waste management can help to reduce the adverse effects of organic waste while contributing to the circular economy at the same time. The toxic oily-biological sludge generated from oil refineries’ wastewater treatment plants is a potential source for biogas energy recovery via anaerobic digestion. However, the oily-biological sludge’s carbon/nitrogen (C/N) ratio is lower than the ideal 20–30 ratio required by anaerobic digestion technology for biogas production. Sugarcane bagasse can be digested as a high C/N co-substrate while the oily-biological sludge acts as a substrate and inoculum to improve biogas production. In this study, the best C/N with co-substrate volatile solids (VS)/inoculum VS ratios for the co-digestion process of mixtures were determined empirically through batch experiments at temperatures of 35–37 °C, pH (6–8) and 60 rpm mixing. The raw materials were pre-treated mechanically and thermo-chemically to further enhance the digestibility. The best condition for the sugarcane bagasse delignification process was 1% (w/v) sodium hydroxide, 1:10 solid-liquid ratio, at 100 °C, and 150 rpm for 1 h. The results from a 33-day batch anaerobic digestion experiment indicate that the production of biogas and methane yield were concurrent with the increasing C/N and co-substrate VS/inoculum VS ratios. The total biogas yields from C/N 20.0 with co-substrate VS/inoculum VS 0.06 and C/N 30.0 with co-substrate VS/inoculum VS 0.18 ratios were 2777.0 and 9268.0 mL, respectively, including a methane yield of 980.0 and 3009.3 mL, respectively. The biogas and methane yield from C/N 30.0 were higher than the biogas and methane yields from C/N 20.0 by 70.04 and 67.44%, respectively. The highest biogas and methane yields corresponded with the highest C/N with co-substrate VS/inoculum VS ratios (30.0 and 0.18), being 200.6 mL/g VSremoved and 65.1 mL CH4/g VSremoved, respectively.

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Section: Introductionmentioning

confidence: 99%

Sugarcane Bagasse as a Co-Substrate with Oil-Refinery Biological Sludge for Biogas Production Using Batch Mesophilic Anaerobic Co-Digestion Technology: Effect of Carbon/Nitrogen Ratio

Ghaleb

Kutty

Hayder

et al. 2021

Water

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“…Cabbai et al (35) state that biogas is a renewable energy source and a key factor for a future fossil fuels independent society. In comparison with fossil fuels anaerobic digestion technology can reduce greenhouse gas emissions by utilizing locally available sources (36). Biogas production is growing in the European energy market and offers an economical alternative for bioenergy production (37).…”

Section: Figure 5 the Scheme Of The Waste To Energy Conversion Technologiesmentioning

confidence: 99%

Sustainable management of waste-to-energy in Republic of Srpska

et al. 2021

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Republic of Srpska (RS) is one of the two entities in Bosnia and Herzegovina (BiH). It is located in South-eastern Europe, in the western part of the Balkan Peninsula. As in most developing countries, waste management is based on landfilling. The constant increase in waste generation creates a growing burden on the existing waste management system and the environment. Comparing the amount of waste with GDP, despite a much lower standard, RS/BiH residents, compared to EU residents, generate far more waste for the same amount of money. All generated waste is disposed of in landfills, which causes greenhouse gas emissions and has a negative effect on the environment. On the other side, untreated waste deposited in landfills represents the loss of potential of waste as a renewable energy source. In this study, an attempt has been made to represent the possibilities of sustainable waste-to-energy management in RS with the goal to provide reliable support to decision makers to direct waste management in a sustainable framework.

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“…Lithuania, a European country, is researching agricultural strategies to increase the viability of the performance of the energy sector on farms, through the use of bogus, whose production in 2006 obtained a significant growth compared to previous years, equivalent to 2 tons of oil. This alternative, they consider it favorable for the replacement of parts of the traditional fuel, in processes for the generation of energy and heat in the country (Katinas et al, 2019).…”

Section: Current Situation Of Biodegradable Wastementioning

confidence: 99%