Membrane filtration system consists of raw water pump system, membrane filtration pretreatment system, membrane valve rack system, backwash system, CIP / EFM chemical cleaning and dosing system, control system and pipeline system.
To determine the treatment scale of membrane filtration process, we should not only pay attention to the total amount of daily water production, but also pay attention to the change rule of instantaneous inflow flow of water plant. Whether to design a large enough regulating pool to ensure the constant operation of membrane, or to make full use of the management and scheduling means for manual intervention to make the membrane operate normally under the variable flux. It needs to be fully demonstrated in combination with the treatment water quality, water volume change, system investment, operation cost, etc.
Nanofiltration is a relatively new membrane filtration process, which is often used to treat water with low total solution and solid, such as surface water and groundwater. Its purpose is to soften (remove multi-media cations) and remove disinfection by-product precursors, such as natural organic substances and organic compounds.
In recent years, nanofiltration has also become more widely used in food processing, such as dairy processing, etc., with the aim of concentrating and partially removing minerals (monovalent ions) in weekly