Mitigating ammonia and greenhouse gas emissions from stored cattle slurry using agricultural waste, commercially available products and a chemical acidifier
نویسندگان
چکیده
The production of bovine slurry and its subsequent storage are significant sources ammonia (NH 3 ) greenhouse gases (GHGs). Chemical acidification manures has been shown to significantly reduce these emissions. Waste products, derived from food processing on-farm practices, may be used as “natural” acidifiers. However, the efficacy products in reducing pH any emissions unknown. Commercial “slurry improvers” or “additives” also a viable mitigation option; however, their effectiveness is questionable. This study investigated cost range waste commercial amendments chemical acidifier, ferric chloride (FeCl ), identify most effective amendment for NH GHG reduction. Ammonia abatement potential was observed 5% sugar beet molasses (67% reduction), 7% apple pulp (49% grass silage (38% reduction). Methane (CH 4 were reduced only by spent brewers’ grain, sugarbeet molasses, effluent at higher inclusions (i.e. amounts added), with reductions ranging 15% 70%. Carbon dioxide (CO 2 increased addition amendments. Commercially available additives had little impact on emissions, exception one treatment, which CH approximately 10%. Ferric 20%–68%, 6%–65%, CO 6%–38%, depending inclusion. All low marginal costs -€0.46 €0.88 kg ?1 abated compared FeCl (€1.80 €231 ). incubation experiment demonstrated that industry streams could valorised many result due input labile carbon sources. Therefore, based results current study, it recommended chloride, 1.1% respectively, examined field experiments. • Farm A saving ? €0.46 achieved using ineffective abating
منابع مشابه
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ژورنال
عنوان ژورنال: Journal of Cleaner Production
سال: 2021
ISSN: ['0959-6526', '1879-1786']
DOI: https://doi.org/10.1016/j.jclepro.2021.126251