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A comment on Saudi Thirst for Water Is Creating a Toxic Brine Problem. Parent comment

Re:Saudi Thirst for Water Is Creating a Toxic Brine Problem by systemfreund on Wednesday January 09, 2019 @03:20PM (#18868430)
Apparently it's for prevention of fouling:

> Combined low concentrations of copper (5 μg/l and chlorine (50,μg/l have been effective in preventing both micro and macro-fouling in over 120 seawater installations since 1987.

https://www.researchgate.net/publication/242186534_FOULING_P...

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Re:Saudi Thirst for Water Is Creating a Toxic Brine Problem by TheBill on Wednesday January 09, 2019 @03:48PM (#18868714)
It's also done in freshwater (great lakes) to prevent zebra mussels from clogging the intake pipes. Things like to grow where other things bring food by for free, and are sheltered from predators.
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