Engineering:Zero waste agriculture
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Zero waste agriculture is a type of sustainable agriculture which optimizes use of the five natural kingdoms, i.e. plants, animals, bacteria, fungi and algae, to produce biodiverse-food, energy and nutrients in a synergistic integrated cycle of profit making processes where the waste of each process becomes the feedstock for another process.
History
The integration of shallow oxidisation ponds of microalgae was demonstrated by Golueke & Oswald in the 1960s. The widespread global implementation of these systems can be largely credited to Prof George Lai Chan (2 March 1924 Mauritius-8 October 2016 Mauritius) from ZERI.[2] Zero waste agriculture is now practiced in China (ecological farming), Columbia (integrated food & waste management systems) & Fiji (integrated farming systems), India (integrated biogas farming), South Africa (BEAT Coop & African Agroecological Biotechnology Initiative) and Mauritius. The Brazilian government has adopted integrated farming system as a major social technology for the uplifting of marginalized and subsistence farmers through coordination with TECPAR.[3]
Zero waste agriculture combines mature ecological farming practices that delivers an integrated balance of job creation, poverty relief, food security, energy security, water conservation, climate change relief, land security & stewardship.
Practice
Zero waste agriculture is optimally practiced on small 1-5 ha sized family owned and managed farms and it complements traditional farming & animal husbandry as practiced in most third world communities. Zero Waste Agriculture also preserves local indigenous systems and existing agrarian cultural values and practices.
Zero waste agriculture presents a balance of economically, socially and ecologically benefits as it:
- optimizes food production in an ecological sound manner
- reduces water consumption through recycling and reduced evaporation
- provides energy security through the harvesting of biomethane (biogas) and the extraction of biodiesel from micro-algae, as a by-product of food production
- provides climate change relief through the substantial reduction in greenhouse gas emissions from both traditional agriculture practices and fossil fuel usage
- reduces the use of pesticides through biodiverse farming
Certification of such farming practices is both challenging and an opportunity.[4]
See also
- Integrated Multi-Trophic Aquaculture
- Miniwaste
References
- ↑ Michelle Cohan (24 June 2020), Meet Benin's zero waste farmer inspiring an agricultural movement, CNN, https://edition.cnn.com/2020/06/24/africa/zero-waste-farming-godfrey-nzamujo-benin-spc-intl/index.html
- ↑ Zero Emissions Research & Initiatives ZERI
- ↑ Paraná Technology Institute TECPAR
- ↑ McMickle, Celeste (July 30, 2020i). "Zero Waste Farsm: The Next Step for Sustainable Agriculture". Agritecture. https://www.agritecture.com/blog/2020/7/27/zero-waste-farms-the-next-step-for-sustainable-agriculture. Retrieved June 29, 2021.
Further reading
- Ashok Pandey, Jonathan Wong, Kim Bolton, Mohammad Taherzadeh, ed (July 18, 2019) (in English). Sustainable Resource Recovery and Zero Waste Approaches (Ebook). St. Louis, Missouri, USA: Elsevier Science. ISBN 444642838. ISBN 978-0-444-64283-7. https://www.google.com/books/edition/Sustainable_Resource_Recovery_and_Zero_W/mH2jDwAAQBAJ?hl=en&gbpv=1&dq=Zero+waste+agriculture&printsec=frontcover.
- Gowhar Hamid Dar, Humaira Qadri, Khursheed Ahmad Wani, Mohammad Aneesul Mehmood, Rouf Ahmad Bhat, ed (August 30, 2019) (in English). Innovative waste management technologies for sustainable development (Ebook). Practice, Progress and Proficiency in Sustainability (PPPS) Book Series. Hershey, Pennsylvania USA: IGI Global. ISBN 978-1-7998-0033-0. https://www.google.com/books/edition/Innovative_Waste_Management_Technologies/3q2rDwAAQBAJ?hl=en&gbpv=1&dq=Zero+waste+agriculture&printsec=frontcover.
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