Feed and bleed into a small, body of water with a negligible re-charge (i.e. The Arabian Gulf) where the "Feed" contains a contaminant, results in time with an exponential increase of that contaminant (hyper saline brine). The growth in salinity level may be modest to begin with but once the "bleed" (the desalination feed-source) contains higher salt levels, it follows that the Feed, the brine effluent,  will contain greater levels of salt. This is a logical, rational observation. When the rate of Feed and Bleed increases, i.e. the Desalination capacity increases, as has been announced by all GCC states, then the exponential increase can be expected. Soon, the ability to extract hyper saline quantities from the Bleed (or Feed-source) to make potable water will become exponentially expensive, ultimately leading to the collapse of the Desalination industry in the Gulf with a parallel collapse of the associated economies. Zero Liquid Discharge (ZLD) technology must be employed at the first opportunity, hopefully before it is too late to enable recovery of the Marine environment and a consequent reduction in salinity levels to below 40g/L.

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Feed and bleed into a small, body of water with a negligible re-charge (i.e. The Arabian Gulf) where the "Feed" contains a contaminant, results in time with an exponential increase of that contaminant (hyper saline brine). The growth in salinity level may be modest to begin with but once the "bleed" (the desalination feed-source) contains higher salt levels, it follows that the Feed, the brine effluent,  will contain greater levels of salt.

This is a logical, rational observation.

When the rate of Feed and Bleed increases, i.e. the Desalination capacity increases, as has been announced by all GCC states, then the exponential increase can be expected.

Soon, the ability to extract hyper saline quantities from the Bleed (or Feed-source) to make potable water will become exponentially expensive, ultimately leading to the collapse of the Desalination industry in the Gulf with a parallel collapse of the associated economies.

Zero Liquid Discharge (ZLD) technology must be employed at the first opportunity, hopefully before it is too late to enable recovery of the Marine environment and a consequent reduction in salinity levels to below 40g/L.