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SUMMARY:Integrating Duckweed into a Chain of Brine Reuse Enhancing the Val
 ue of Desalination for Food Production: The Case of Somalia
DTSTART;VALUE=DATE-TIME:20261001T131500Z
DTEND;VALUE=DATE-TIME:20261001T133000Z
DTSTAMP;VALUE=DATE-TIME:20260916T130420Z
UID:indico-contribution-2933@cern.ch
DESCRIPTION:Speakers: Gideon  Oron (Zuckerberg Water Research Institute\, 
 Jacob Blaustein Institutes for Dessert Research\, Ben-Gurion University of
  the Negev\, Kiryat Sde-Boker\, Israel)\nDesalination brine\, typically co
 nsidered a disposal challenge\, is evaluated through a resource recovery m
 odel that converts the concentrate into a valuable input for food producti
 on. A sequential system consisting of duckweed cultivation\, fish producti
 on\, and final irrigation of salt-tolerant halophytes is developed. Duckwe
 ed (Lemna gibba) serves as a key component by assimilating nutrients from 
 fish influents and enhancing biomass production. It can achieve yields of 
 approximately 10 g/m²/day (dry weight)\, with edible protein content of a
 bout 35%. The produced duckweed is primarily utilized as feed for herbivor
 ous fish (grass carp)\, while contributing to the overall food production 
 chain.\nThe remaining saline brine is applied for cultivating halophyte cr
 ops (Atriplex lentiformis\; Salicornia bigelovii). The model integrates th
 e serial relationship between duckweed\, fish\, and halophyte\, like agric
 ultural practices implemented in Ramat Negev Regional Council\, where grou
 ndwater salinity is approximately 4.4 dS/m. This similarity demonstrates t
 he feasibility of utilizing saline resources for productive applications.\
 nFor a small reverse osmosis desalination facility producing 50 m³/day of
  desalinated water and 27 m³/day of concentrate with an electrical conduc
 tivity of 20.31 mS/cm\, approximately 0.36 hectares are required for brine
  utilization. The system can generate an estimated 10.3 tons of forage ann
 ually\, supporting approximately 37 goats or sheep\, 11 camels\, or 5 catt
 le. The approach is scalable according to brine availability and land capa
 city. Although the direct economic value of the crops is relatively low (a
 pproximately €467/ha/year)\, the primary benefit is the conversion of de
 salination by-products into livestock feed resources while reducing risks.
 \n\nhttps://indico.unina.it/event/117/contributions/2933/
LOCATION:Department of Agricultural Sciences of the University of Napoli F
 ederico II\, Portici\, Italy Sala Cinese
URL:https://indico.unina.it/event/117/contributions/2933/
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