from agricultural producer to energy producer.
In Morocco agriculture accounts for 15% of GDP, it employs 46% of the work force. The waste is organic by nature of plant and animal matter. It amounts in agriculture to 52 Mt / year, among them 33 Mt of manure and slurry. The food industry sector adds another 3 Mt / year of organic waste.
Much of the waste is susceptible to natural fermentation, especially in a humid environment, and produces greenhouse gases (methane); This process of fermentation can be intentional in a bio digester that produces biogas and fertilizer. We are potentially talking about:
- livestock excreta: manure, slurry, poultry, turkey, cattle, sheep, horse, …
- sewage sludge,
- waste from the food industry: by-products, wastewater, whey, vinasse, etc.
- waste from oil mills,
- vegetable or fruit waste, rejects from the packaging center,
- waste from the meat industry, slaughterhouse, fat, intestines, contents of belly, wash water…
- fish waste, fish factories, canning,
- in general biodegradable vegetable and fruit waste.
Indeed, this waste is characterized by great heterogeneity. By operating a biogas plant, a industrial producer can, on the one side, treat its waste / effluents / residues in a sustainable manner and, on the other side, develop an additional and profitable activity, auto-production / consumption of electricity and heat.
Certain plant waste, which constitutes dry biomass, lignocellulose (wood, olive kernels, etc.), or certain pulps, etc., can be utilized by other processes, some are toxic and difficult to treat (olive pulp). In small quantities (~ 5%) they can be used in anaerobic digestion plants.
rearing of animals. landfilling of waste. greenhouse gas effects.
The agricultural sector accounts for 33% of global greenhouse gas emissions; in Africa, its share is even higher. Animal husbandry and agrofood industrial activities are the source of more than half of the global greenhouse gas emissions. In Morocco and elsewhere in Africa, the main causes of agricultural emissions are;
- enteric fermentation of farmed ruminants,
- mismanagement of manure and slurry, scraping, inadequate storage and direct spreading land,
- synthetic fertilizer,
- the landfilling of wet organic waste from the food industry.
Livestock husbandry has a huge potential, as the majority of GHG emissions are linked to animal discharges, so the efficient management and recovery of manure, slurry, etc. here is the key.
As for landfilling, organic and food waste remain the major irreversible nuisance on landfills in terms of GHG emissions and odors but also through the production of enormous amounts of leachate.
Their utilization in a biogas unit can incur great savings in GHG emissions; because the production of biogas will be controlled, inside the digester, under a gasometer; this shall help countries, including Morocco, to achieve their objectives set out in their NDCs (Paris Agreement).
anaerobic digestion. clean. sustainable. feasible.
Livestock manure / slurry, plant waste and residues, and agri-food sludge; all can actually provide their producers with energy savings and a sustainable waste treatment solution.
generizon’s vision allows you to:
- utilize the biogas and its energy through a combined heat and gas engine to reduce your electricity bill,
- and / or direct burn the biogas in a boiler to replace fuel oil / gasoline or propane / LPG,
- produce a nutrient-rich fertilizer; thanks to complete tracing of the inputs the digestate material is clean, this no leachate.
- avoid odor nuisance,
- reduce GHG emissions.
In order to ensure the profitability of biogas plants, we dimension the installation exactly to the conditions, needs and strategy of our customers. generizon adapts the installation to integrate perfectly with your operation, we establish a tailor-made concept.
Agriculture in general and animal husbandry in particular have great potential to produce green energy and reduce greenhouse gas (“GHG”) emissions.
Efficient management of this waste is the key to exploiting this potential.