Closed-loop organic waste management systems for family farmers in Brazil
Type de document
journalArticle
Langue source
Anglais
Titre français
Titre anglais
Closed-loop organic waste management systems for family farmers in Brazil
Auteur(s)
- VELDEN René van der
- FONSECA-ZANG Warde da
- ZANG Joachim
- CLYDE-SMITH Dominic
- LEANDRO Wilson M.
- PARIKH Priti
- BORRION Aiduan
- CAMPOS Luiza C.
Editeur(s)
Autre(s)
Id
HCUKZWXU
Version
2347
Date ajout
15 janvier 2021 23:33
Date modification
15 janvier 2021 23:33
Résumé anglais
Family farmers in Brazil could diversify their sources of income and improve agriculture practices by adopting circular economy principles on their farms. Closed-loop technological systems can be used to manage organic waste and produce fertiliser and biogas thereby generating revenue. Anaerobic Digestion (AD) is a proven technology that can produce digestate (i.e. fertiliser) and biogas from organic waste, although digestate application in soil and crops without treatment can have adverse effects. However, in practice, there is a lack of knowledge about the benefits of recycling organic waste in farming communities in Brazil. Therefore, the main aim of this paper is to provide conceptual design configurations of closed-loop systems that manage organic waste and generate revenue for small farms in Brazil. A literature review of selected technologies and interviews with Brazilian family farmers were used to inform the components of the proposed conceptual designs. The proposed designs are based on circular economy principles, incorporating AD, pyrolysis for biochar, hydroponics and vermifiltration in various configurations. A complete closed-loop system consisting of a 7.5 m3 digester, pyrolysis unit, a combined hydroponic and vermifilter unit and a shredder is estimated to cost around USD$1600 (R$ 6600). The flexibility of the proposed systems has the potential to increase resilience and income for small-scale farmers, whilst encouraging good practices for waste management. The conceptual designs can be used as a basis for further research and development of small-scale organic waste management solutions in Brazil.
Note
None
CRAW tags
- AB - Modalité bio
- FREDO fertilisation
- GEO Brésil
- GEO Royaume-Uni
- waste valorization
WEB tags
- family farmers
- biogas
- closed-loop
- organic waste
- technologies
Titre de la publication
Environmental Technology
Volume
0
Pages
1-18
Date caractères
January 5, 2021
Date publication
5 janvier 2021
Doi
10.1080/09593330.2021.1871660
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Il est donc plus fiable et permanent qu'une URL classique
Issn
0959-3330
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