1. ระบบน้ํากร่อย
Currently there is no strict definition for brackish water. In my country, some people call water with a salt content greater than 1000mg/L brackish water, and some people call water with a chloride content greater than 800mg/L or sulfate content greater than 400mg/L brackish water. Americans refer to surface water and groundwater with a salt content of 1500-5000mg/L as brackish water. Brackish water refers to water whose alkalinity is greater than hardness, contains a large amount of neutral salt, and has a pH value greater than 7. According to the provisions of my country's drinking water quality standards that the salt content should be lower than 1000mg/L, surface water and groundwater with a salt content greater than 1000mg/L should be called brackish water.
When the required water production drops, it can be solved by setting a large enough buffer water production tank. Large โรงบําบัดน้ําs are usually designed into multiple sets of identical series, by adjusting the number of the number of series in operation to meet the user's demand for changes in water production.