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Biorefineries at poultry farms: a perspective for sustainable development
Journal of Chemical Technology and Biotechnology ( IF 3.4 ) Pub Date : 2020-11-12 , DOI: 10.1002/jctb.6609
Leyanet Odales‐Bernal 1 , Ralf Kiran Schulz 2 , Lisbet López González 1 , Ernesto L Barrera 1
Affiliation  

Poultry litter (PL) is one of the drier and bulkier manures produced in intensive agriculture. Land spreading is considered the most common treatment option for PL; however, this causes large atmospheric greenhouse emissions and consequently a high negative environmental impact. PL has several factors that limit its sustainable use as an energy source, and thus there is still a need for more studies about sustainable waste management. The paper aims at: (i) proposing sustainable pathways in order to maximise the PL valorisation process, based on previous experiences described in the literature; and (ii) showing the advantages of reforming poultry farms into biorefineries in Cuba. Combinations of techniques are used to increase PL valorisation, but only by modulating the theoretical data has an improvement occurred. In this work, pathways for thermo‐ and bioconversion processes are proposed which involve four major technologies for converting PL into useful energy and fertiliser, being pyrolysis/gasification, hydrothermal carbonisation and anaerobic digestion as key conversion technologies. Including technologies for nutrient recovery in the proposed pathways would allow better agricultural applications. The treatment of PL in biorefineries in Cuba would have a positive impact on the economy through income generation and savings resulting from reductions in imports (i.e. fossil fuels and agrochemicals), employment creation, improved living conditions and development in rural communities. Future studies should be aimed at evaluating the various proposed pathways in order to maximise the PL valorisation process, in addition to a marketing study of the products generated through the biorefineries at poultry farms. © 2020 Society of Chemical Industry (SCI)

中文翻译:

家禽场的生物精炼厂:可持续发展的前景

家禽凋落物(PL)是集约化农业中生产的较干燥和肥大的肥料之一。土地传播被认为是PL最常见的治疗选择;但是,这导致了大气中温室气体的大量排放,因此对环境造成了很大的负面影响。PL有几个因素限制了其作为能源的可持续利用,因此仍然需要对可持续废物管理进行更多研究。该文件旨在:(i)根据文献中描述的先前经验,提出可持续发展的途径,以最大程度地提高PL增值过程;(ii)显示出将古巴的家禽养殖场改造为生物精炼厂的优势。多种技术组合用于增加PL价位评估,但只有通过调整理论数据才能实现改善。在这项工作中 提出了热和生物转化过程的途径,其中涉及将PL转化为有用的能源和肥料的四项主要技术,即热解/气化,水热碳化和厌氧消化是关键的转化技术。在提议的途径中包括用于养分回收的技术将使农业更好地应用。古巴生物精炼厂中PL的处理将通过减少进口(即化石燃料和农用化学品),创造就业机会,改善生活条件和农村社区的发展产生的收入和储蓄,对经济产生积极影响。未来的研究应旨在评估各种提议的途径,以最大限度地提高PL评估过程,除了对通过家禽场的生物精炼厂生产的产品进行市场研究之外。©2020年化学工业协会(SCI)
更新日期:2020-11-12
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