| 词条 | Arborloo |
| 释义 |
An arborloo is a simple type of composting toilet in which feces are collected in a shallow pit and a fruiting tree is later planted in the fertile soil of the full pit. Arborloos have a pit like a pit latrine but less deep, a concrete slab, superstructure (toilet house or outhouse) to provide privacy and possibly a ring beam to protect the pit from collapsing.[1] The arborloo works by temporarily putting the slab and superstructure above a shallow pit while this pit fills. When the pit is nearly full, the superstructure and slab is moved to a newly dug pit and the old pit is covered with the earth got by digging the new pit and left to compost. The old pit serves as a bed for a fruit tree or some other useful vegetation, which is preferably planted during the rainy season.[2] The arborloo is a type of dry toilet. In using the nutrient-rich soil of a retired pit, the arborloo, in effect, treats feces as a resource rather than a waste product.[3][4] Arborloos are used in rural areas of many developing countries, for example in Zimbabwe, Malawi and Ethiopia.[1] DesignThe defecation pit may be circular or square and this may depend on the slab and superstructure. A circular pit is less likely to collapse.[5] The pit of the arborloo is shallow (between 1-1.5 meter).[2] If the pit is dug by hand it must have a diameter of at least 0.9 meters to accommodate effective digging.[6] The pit should not be wider than the slab and must allow for 0.1 meter bearing around the edge.[6] See also
References1. ^1 {{Cite web|url=http://www.ecosanres.org/toilets_that_make_compost.htm|title=Toilets That Make Compost|website=www.ecosanres.org|access-date=2017-10-23}} 2. ^1 {{cite book|last=Morgan|first=Peter|title=Toilets that make compost: Low-cost, sanitary toilets that produce valuable compost for crops in an African context|year=2007|publisher=EcoSanRes Programme|location=Stockholm|isbn=978-9-197-60222-8}} 3. ^{{Cite book|title=Ecological Sanitation|last=Winblad|first=Uno (et al.)|publisher=Ecosanres Program of the Stockholm Environment Institute|year=2004|isbn=|location=http://www.ecosanres.org/pdf_files/Ecological_Sanitation_2004.pdf|pages=}} 4. ^{{Cite book|title=Guidelines on the Use of Urine and Faeces in Crop Production. 35p|last=Jönsson|display-authors=et al|first=|publisher=Ecosanres Program of the Stockholm Environment Institute|year=2004|isbn=|location=http://www.ecosanres.org/pdf_files/ESR_Publications_2004/ESR2web.pdf|pages=}} 5. ^{{cite book|last=WEDC|title=An engineer's guide to latrine slabs|year=2012|publisher=WEDC|location=Loughborough University|isbn=978 1 84380 143 6|page=4|url=http://wedc.lboro.ac.uk/resources/booklets/BK005_LTS_A5_Pages.pdf}} 6. ^1 {{cite book|last=CAWST|title=Introduction to Low Cost Sanitation Latrine Construction|url=http://www.susana.org/en/resources/library/details/1499|year=2011|publisher=CAWST: Center for Affordable Water and Sanitation Technology|page=16}} External links{{commonscatinline|Arborloo}}{{Permaculture}} 8 : Toilets|Toilet types|Phytoremediation plants|Home composting|Permaculture|Sustainable building|Sustainable technologies|Bioremediation |
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