dealkalize
/diːˈælkəlaɪz/Definitions
1. verb
to remove or neutralize alkalinity, especially in a solution or a body of water
“The water treatment plant aims to dealkalize the polluted river to make it safe for aquatic life.”
2. verb
to remove or neutralize alkaline substances from a solution or a body of water
“The chemical process used in the factory dealkalizes the wastewater to meet environmental regulations.”