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Energetic Balance of Biogas and Fertilizing Potential of Digestate from Anaerobic Digestion of Manihot Utilissima

Beaudrique Mboko Nsimba, Philippe Ngoma Mambanzulua, Norbert Lolofo Basosila, Virginie Alleluya Korangi, Mugunda Saidi, Yamba Esole

Journal of Scientific Research and Reports · pp. 81–92 · Published 31 Dec 2020

10.9734/jsrr/2020/v26i1030324

Abstract

Optimal scale production of biogas from the anaerobic digestion (AD) of organic wastes (OWs) as substrates has become one of stimulating environment-friendly procedures to foster the replacement of fossil energies by renewable ones. AD of OWs generated from households is desirable as an effective method to fight against environmental pollution effects of the latter in developing countries. Notably in Africa where each year there are more than 600,000 premature deaths following the use of solid biomass energy (especially charcoal). Yet, if assessing the potential of biogas production, that is, biochemical methane potential (BMP) has played a prominent role in the choice of substrates, in the other hand the evaluation of the optimal ratio between the quantity of variety OWs and the amount of energy to be produced has not received several attentions. The latter is valuable not only for energetic productivity but also for profitability. Thus, in this report, an energetic balance between the amount of leaves and stems of Manihot Utilissima (MU) annually produced as well as the energetic potential of their biogas were investigated. Cow manure (CM) was employed as inoculum, under mesophilic conditions of the collection sites: Ngaba and Ndjili in Kinshasa City Province (KCP), Congo DR, where the leaves and stems of MU are among the most generated wastes. Furthermore, we evaluated the         fertilizing potential of digestates from the AD of the leaves and stems by their Carbon/Nitrogen (C/N) ratios. The annual energetic potentials of biogas produced were estimated to be 1.362 ± 0.028 109 kWh for the leaves and 0.337 ± 0.006 109 kWh for the stems. These were associated to the energy needs for the KCP households corresponding to the use of charcoal. The latter was evaluated to be 166 103 tons for leaves and 41 103 tons for the stems of MU, respectively. The fertilizing potential of digestates from the AD of the leaves and stems of MU assessed by their C/N ratios were determined to be 5 and 10, respectively; indicating that they are favorable for the cultivation of vegetables and fruit trees in KCP soils (C/N~5) but also optimal for the organisms, soil conditioning and could improve the soils hydraulic conductivity (C/N~10).

Biogas potential energetic balance manihot utilissima digestates ligneous biomass.

References (43)

  1. 1 Inhibition of anaerobic digestion process: A review [DOI]
  2. 2 Plant Drug Analysis [DOI]
  3. 3 Nutritional management for enteric methane abatement: a review [DOI]
  4. 4 Anaerobic co-digestion of algal sludge and waste paper to produce methane [DOI]
  5. 5 Biogas as a sustainable energy source for developing countries: Opportunities and challenges [DOI]
  6. 6 Climatic Change and Rural-Urban Migration: The Case of Sub-Saharan Africa [DOI]
  7. 7 A new perspective on the use of plant secondary metabolites to inhibit methanogenesis in the rumen [DOI]
  8. 8 METHODS OF SOIL ANALYSIS
  9. 9 Biochemical methane potential of biomass and waste feedstocks [DOI]
  10. 10 Impact of economic growth, nonrenewable and renewable energy consumption, and urbanization on carbon emissions in Sub-Saharan Africa [DOI]
  11. 11 Walkley–Black analysis of forest soil organic carbon: recovery, limitations and uncertainty [DOI]
  12. 12 Effect of lignin-derived and furan compounds found in lignocellulosic hydrolysates on biomethane production [DOI]
  13. 13 Wastewater Sludge Processing [DOI]
  14. 14 Batch and semi-continuous anaerobic digestion of food waste in a dual solid–liquid system [DOI]
  15. 15 Performance of uasb reactor treating leachate from acidogenic fermenter in the two-phase anaerobic digestion of food waste [DOI]
  16. 16 Effects of EGR rate and hydrogen/carbon monoxide ratio on combustion and emission characteristics of biogas/diesel dual fuel combustion engine [DOI]
  17. 17 Optimizing feed composition for improved methane yield during anaerobic digestion of cow manure based waste mixtures [DOI]
  18. 18 Effect of Biogas Digestate and Mineral Fertilisation on the Soil Properties and Yield and Nutritional Value of Switchgrass Forage [DOI]
  19. 19 Condensed tannins: A factor limiting the use of cassava forage [DOI]
  20. 20 Anaerobic biodegradability of cellulose and hemicellulose in excavated refuse samples using a biochemical methane potential assay [DOI]
  21. 21 Biogas as hydrogen source for fuel cell applications [DOI]
  22. 22 Biogas Energy [DOI]
  23. 23 Biotechnology for production of fuels, chemicals, and materials from biomass [DOI]
  24. 24 Impact of bioaugmentation on biochemical methane potential for wheat straw with addition of Clostridium cellulolyticum [DOI]
  25. 25 Hydraulic conductivity in soils irrigated with wastewaters of differing strengths: Field and laboratory studies [DOI]
  26. 26 Hazardous waste source reduction in materials and processing technologies [DOI]
  27. 27 Nigerian households' cooking energy use, determinants of choice, and some implications for human health and environmental sustainability [DOI]
  28. 28 Understanding the political economy and key drivers of energy access in addressing national energy access priorities and policies: African Perspective [DOI]
  29. 29 Comparative study of biological hydrogen production by pure strains and consortia of facultative and strict anaerobic bacteria [DOI]
  30. 30 Combustion and Heat Release Characteristics of Biogas under Hydrogen- and Oxygen-Enriched Condition [DOI]
  31. 31 Development of an enzymatic assay for the determination of cellulose bioavailability in municipal solid waste [DOI]
  32. 32 Optimisation of biogas yields from anaerobic digestion by feedstock type [DOI]
  33. 33 Energetic Valorization of Biomethane Produced from Cow-Dung [DOI]
  34. 34 Effect of Inoculum to Substrate Ratio on the Methane Potential of Microcrystalline Cellulose Production Wastewater [DOI]
  35. 35 Effect of inoculum to substrate ratio on biogas production of sheep paunch manure [DOI]
  36. 36 Anaerobic treatment of brewery wastes [DOI]
  37. 37 Comparative study of the methane production based on the chemical compositions of Mangifera Indica and Manihot Utilissima leaves [DOI]
  38. 38 Biogas Production ☆ [DOI]
  39. 39 Impact of Different Plant Secondary Metabolites Addition: Saponin, Tannic Acid, Salicin and Aloin on Glucose Anaerobic Co-Digestion [DOI]
  40. 40 Handbook of water and wastewater microbiology [DOI]
  41. 41 Agronomy [DOI]
  42. 42 Wastewater sludge processing [DOI]
  43. 43 04/02849 Biochemical methane potential of fruits and vegetable solid waste feedstocks [DOI]

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