Comparison of the methane potential obtained by anaerobic codigestion of urban solid waste and lignocellulosic biomass

Romero, Hugo; Vega, C.; Zuma, J; Franco-Pesantez, Fredis; Camacho, Alberto; Redrovan, F.F.

doi:10.1016/j.egyr.2019.10.013

Cited by 9 publications

(8 citation statements)

References 9 publications

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“…These reduce the uncertainties associated with IPCC default and IPCC FOD models as reported in IPCC (2006b, c) andIPCC (2015). Sarptas (2016), Singh et al (2018), Trapani et al (2018, Dimiskovska et al (2019) and Romero et al (2020) explore different models and found similar variations. The differences in trends with time are caused by the different estimation theories of the LFG models used in the previous studies.…”

Section: Waste and Methane Potentialmentioning

confidence: 69%

“…The incineration process was also reported in Moharir et al (2019), Gupta et al (2022) and Sohoo et al (2021). Anaerobic digestion is another important process of methane generation from MSW as reported by Caillet et al (2019), Romero et al (2020), Surendran and Shanmugam (2021) and Zhou et al (2022). Al-Saadi and Nageswara Rao (2016), reported studies conducted on CH 4 generation from anaerobic digestion of water waste.…”

Section: Introductionmentioning

confidence: 92%

“…LFG contains roughly 50-55% CH 4 and 45-50% carbon dioxide (CO 2 ). It also contains less than 1% non-methane organic compounds (NMOCs) and a trace of inorganic compounds (Romero et al, 2020;EPA, 2021a;Pant and Rai, 2021). CH 4 is a potent greenhouse gas (GHG) that is 28-36 times more effective at trapping heat in the atmosphere than CO 2 as reported in Singh et al (2018) and EPA (2021a).…”

Section: Introductionmentioning

confidence: 99%

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An estimation of bio-methane and energy project potentials of municipal solid waste using landfill gas emission and cost models

Usman

2022

FEBE

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PurposeThe purpose of the study is to analyse municipal solid waste (MSW) disposed of in Jimeta-Yola metropolis for landfill gas (LFG), methane and project viability potential.Design/methodology/approachThe data was collected daily from landfills for four weeks. About 7,329.55 Mg/year of waste was analysed. These waste were separated into bio-degradable components i.e. paper and textile (263.66 Mg), non-food organic (681.45 Mg), wood and straw (189.50 Mg) and food and kitchen waste (1797.20 Mg). Non-degradable components include plastics, polythene bags, metals, sand, stones, cans etc. (4397.73 Mg). The component's characteristics such as a number of samples, weight, volume, landfill age etc. were measured. The waste, methane (CH4) and energy potential were also analysed using LFG energy cost model.FindingsThe landfills received 15 Gg/year of MSW and emit 0.31 Gg/year of LFG having CH4 content of 82.95 Mg in 2016. These can produce 33.78 GWh of heat energy equivalent to 10.14 GWh of electricity analytically. Therefore, between 2016 and 2022, about 2.24 Gg CH4 and 5201.32 MWh of electricity were wasted. Henceforth, proper management of these waste substances can produce 186.4 Gg CH4 which will generate 432.52 GWh of electricity. The most economically viable project is an electricity project generating 418 kW/year at a sale price of $1.14/kWh (58.38/kWh) and a payback period of 11 years.Practical implicationsRaw LFG collected can be used in heating brick kilns, boilers, furnaces and greenhouses. When treated, the LFG can produce renewable natural gas (RNG), which is used in energy generation and various domestic, vehicle and industrial applications.Social implicationsThe analytical energy generation can provide gross revenue of ₦19.46bn at an average of ₦192.71million/year. Using Landfill Gas Emissions Model (LandGEM) model, the gross and net revenue will be $0.42m and $0.28m yearly, respectively. The project can provide jobs and economic boost to the immediate community through associated ripple effect.Originality/valueThe research is a pre-feasibility study for LFG to gas or electricity projects in Jimeta-Yola. The study contributed to the body of knowledge as a source of literature for further studies locally and globally.

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Section: Waste and Methane Potentialmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

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An estimation of bio-methane and energy project potentials of municipal solid waste using landfill gas emission and cost models

Usman

2022

FEBE

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“…Step 3 Acetogenesis Lately, some efforts have been done to show the potential of anaerobic mono-and co-digestion of the organic fraction of municipal solid waste (MSW) (sediments and fruit and vegetable wastes from markets) [39][40][41][42], manure residues (e.g. bovine, pig, hen, sheep excrements) [43][44][45][46], and biomass recovered from agro-industrial wastes (blackberries, avocado, soybeas, sugarcane, cocoa, plantain, banana, among many others) [47][48][49][50].…”

Section: Step 2 Acidogenesismentioning

confidence: 99%

Latest energy and value-added product synthesis

Ponce¹

2021

Av. Cienc. Ing. (Quito)

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Biomass is key towards the production of renewables, heat, biofuels, and green chemical feedstocks. Based on results reported in the literature, Ecuador, an agriculture-based economy, has the potential of meeting its energy demands while satisfying environmental regulations, by the conversion of self-generated residual biomass. Conventional biological, chemical and thermochemical methods have been modeled and widely studied at laboratory scale for the production of biogas, bioethanol, and other solid and liquid fuels, being milestones for upcoming scaled-up applications. Recently, studies have also shown the development of new processes for the conversion of Ecuadorian biomass wastes into value-added products for future applications. Providing a more complete way to manage the waste problem, aiming to create a sustainable economic growth within a bio-economy perspective.

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“…Although co-digestion began to be studied in the late 1990s, in this decade the scientific community has been making great efforts to study this particular process as it results in greater methane yields, process stability and economic viability than single AD (Mata-Alvarez et al 2011;Acosta et al 2021). There are many examples of co-digestion found in literature which combine household, agricultural and industrial residues such as urban solid waste and lignocellulosic biomass (Romero et al 2020;Arelli et al 2021), food waste and cow manure (Xing et al 2020), etc. and many reports have been found in the literature on the co-digestion of sewage sludge, manure and the organic fraction of municipal solid wastes (Mata-Alvarez et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of different digestates derived from anaerobic co-digestion of olive mill solid waste (omsw) and various microalgae as fertilizers for the cultivation of ryegrass

et al. 2022

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Aims The aim of this work was to evaluate the fertilizing effect of three anaerobic co-digestates on the growth of the herbaceous plant Lolium rigidum. Methods Nine treatments, combining different nutritional solutions (organic and inorganic) and number of fertilizations (one or two) were evaluated. Organic nutritive solution: plants grown with different olive mill solid waste (OMSW) -microalgae co-digestates: 75% OMSW-25% Raphidocelis subcapitata, volatile solids (VS) basis (OMSW-Rs); 50% OMSW- 50% Chlamydomonas Reinhardtii, VS basis (OMSW-Chl); and 75% OMSW-25% Secenedesmus quadricauda, VS basis (OMSW-Sq). Inorganic nutritive solution (INS): plants grown with inorganic Hoagland nutrient solution at 50%. After 60 days of experimentation, biometric and nutritional characteristics and photosynthetic activity were measured. Results The results showed a favourable growth, development and nutritional quality of L. rigidum plants when digestates obtained from the anaerobic co-digestion of OMSW-microalgae are used as organic nutritional solutions as opposed to INS ones. The highest total biomass of L. rigidum was obtained with the treatments that involved two fertilizations. No inhibition due to excess nutrients was observed. A higher root/shoot ratio was achieved with the digestates of OMSW-Rs and OMSW-Ch as compared to that obtained with OMSW-Sq (F = 17.23 p ≤ 0.001). The nitrogen shoot biomass obtained after the organic treatments with the above-mentioned co-digestates was higher than that obtained after the inorganic treatment. Net photosynthesis rates did not present differences in the co-digestates treatments, being equal or superior to the INS treatments. Conclusions The use of the anaerobic co-digestates from OMSW-microalgae can be considered a viable and promising alternative to inorganic fertilization.

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Comparison of the methane potential obtained by anaerobic codigestion of urban solid waste and lignocellulosic biomass

Cited by 9 publications

References 9 publications

An estimation of bio-methane and energy project potentials of municipal solid waste using landfill gas emission and cost models

An estimation of bio-methane and energy project potentials of municipal solid waste using landfill gas emission and cost models

Latest energy and value-added product synthesis

Effect of different digestates derived from anaerobic co-digestion of olive mill solid waste (omsw) and various microalgae as fertilizers for the cultivation of ryegrass

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