Underground Buried Diffuser
The Underground Buried Diffuser is an underground irrigation device designed for trees, shrubs and vegetables.
The Underground Buried Diffuser, designed by Bellachheb Chahbani, is an underground irrigation device designed for trees, shrubs and vegetables, saving water and ensuring year round irrigation of the plants during droughts, by supplying water directly to the roots of the plants.
The manufacturer calls for resellers to partner with them by contacting them through their webpage.
The product is mass produced. It is made from virgin plastic materials (PP, HDPE, LDPE, and PVC) treated anti UV. which are treated with anti-UV.
The average depth of irrigation water applied minus the average absolute deviation from this depth
What is the maximum operating pressure?
What is the longest drip line?
Safest operating pressure
The buried diffuser provides underground irrigation that delivers water to plants at the root level, lessening the possibility of water loss from evaporation. The system consists of diffusing parts, which facilitate water infiltration of the soil. The water flow to plants is regulated through a connection to a distribution pipe. The system works with gravity, as well as conventional water pressure to ensure a steady supply of water to the crops.
The tree buried diffuser comes in various dimensions (15 x 15 cm or 15 x 30 cm) with a diffusing service of 200 square centimeters and 400 square centimeters respectively. The diffusers are placed in holes that are dug in the ground of depth of about 30 to 50 cm of topographic soil. However, in cases where the diffusers are being used in plantation pits, they can be installed in up to 50 to 70 cm below the soil surface before installing the trees. For the irrigation of shrubs and ornamental herbs are installed 20 to 40cm of the pit and 20cm away from the axis of the shrubs or ornamental herbs. The buried diffusers also come in various types; tree buried diffusers, vegetable buried diffusers, and container plant diffusers.
The buried vegetable diffusers as compared to the buried tree diffusers are installed at 5 to 10 cm below the topsoil and about 3 cm from the plant axis; coming in 12x 15 cm and 15 x 30 cm forms.
The container plant diffusers differ from the other two as if they are used in containers or pots for the irrigation of plants in containers or boxes. They also come with a small water reservoir.
According to the manufacturer, it is not required (once the product is installed correctly)
No known replacement components (as there is no need for additional support or maintenance following a proper installation)
30 years (Tree buried diffuser), 5+ years (Vegetable buried diffuser)
The product was designed with the aim of
- Enhancing the efficiency of water resources required for crop production
- Increasing the productivity of rain fed agriculture
- Conservation of oasis and combating desertification
- Combating soil salinization through regulating the salinity of irrigation water (3-5 grams salt)
- Improving the sustainability of rain fed agriculture, in relation to drought and rainfall irregularities
Laboratory and field testing found that the device could operate at low pressures (0.05 – 0.005 bar) with low flow rates (10 mm/day)
There is no known hazard related to the operation of the device
Al–marri, Masoud J., Osman A. Elsharief Abdalla, Mohammed Al-Masri, Mohammed I. Abubaker, M. Mohamed, and R. Hichem, 2018, “Salt Accumulation Under Buried Diffuser vs. Drip Irrigation Methods of Netting Greenhouse Tomatoe Cultivation in Qatar,” International Journal of Biology and Biotechnology, 15(3), pp. 513-520.
Al-marri, Masoud J., Osman A. Elsharief Abdalla, Mohammed I. Abubaker, Mohamed Moussa, and Hichem Rejeb, “2020, “Growth, Yield, and Quality of Greenhouse Tomato in Response to Different Irrigation Levels Using Buried Diffuser (BD) and Surface Drip (SD) Irrigation Methods Under Arid Conditions. Int. J. Biol. Biotech, 17(1), pp. 87-96.
Laboratory and field test for operation at low pressures and flow rates
- Prize of the Grand Price INNOVATEC 2012/2013, MIFFEL, Avignon, France. 2012
TOP 20 innovative SME (Small to Medium Enterprises) of Infolded, World Bank, Helsinki, Finland. 2011
- UNESCO international water prize, Budapest, Hungary. 2009
- Creativity price awarded by the Presidency of the Republic of Tunisia. 2009
- Maghreb union combating desertification Technologies Prize. 2007
- ALECSO Price (Arab League of Education, Culture and Science) of scientific innovation in the field of water. 2002
- Two silver medals for two inventions – 30th International Exhibition of Inventions, Geneva, Switzerland. 2002
- National Merit Medal (Commander) under the sector of Education and Science, Tunisia. 2001
- First prize of the Tunisian Association of Inventors for researchers inventors granted by the Tunisian Association of Inventors at the 11th National Competition of Invention and Innovation, Tunisia. 2001
- First prize of the WIPO (World Intellectual Property Organization) for the best invention by an inventor researcher at the 11th National Competition of Invention and Innovation. Tunisia. 2001
- First prize in the “Mediterranean Prize for Water” award from the Carrefour Euro Mediterranean Water HYDROTOP Second prize of Technology Innovation International Fair of Agriculture and Technology Innovation SIAT. Tunisia. 2000
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