DuPont Water Solutions, offering its industry-leading knowledge on sustainable water management, offered technical assistance to the Safi plant in Ajman to install and manage the system, which produces low conductivity water
for the production facilities and helps provide fresh water to the water-scarce region.
Analysis of the N levels in leaf dry matter of yellow passion fruit (44.76 and 46.36 g [kg.sup.-1] for non-saline and saline water treatments, respectively; Figure 2A) confirmed that plants irrigated with water of high electrical conductivity (4.0 dS [m.sup.-1]) presented on an average N content that was 3.5% higher than in plants irrigated with low conductivity water
(0.35 dS [m.sup.-1]).
The best values were without the use of high electrical conductivity water
(0.8 dS [m.sup.-1]) with approximately 3.87 (30 DAS), 4.37 (50 DAS), 5 (70 DAS) and 5.87 Mm [plant.sup.-1] (90 DAS), observing a significant decrease compared to the maximum conductivity level of 4.5 dS [m.sup.-1]with values of 2.87 (30 DAS), 3.62 (50 DAS), 4.12 (70 DAS) and 4.5 mm [plant.sup.-1] (90 DAS) (Figure 3).
At a preset value, determined by the make-up water conductivity and the cycles of concentration for the system, the controller will open a blowdown valve and bleed high conductivity water
from the system.
Liu GS, Butler JJ, Bohling GC, Reboulet E, Knobbe S, Hyndman DW (2009) A new method for high-resolution characterization of hydraulic conductivity Water
Resources Research 45, W08202.
If DC potentials are present in induction melt equipment, high conductivity water
will lead to corrosion of the pipe nipples.