The Filtration Process of Groundwater

The groundwater is a part of water resources that exist underground in saturated zones beneath the land surface. It generally contains a large amount of impurities and harmful substances to the body, such as iron and manganese ions. They cause a lot of inconvenience to human health and daily life, so it’s necessary to filter the groundwater.

The filtration process of groundwater: 

Groundwater—aeration—primary filtration—precision filtration—soften—clear water

1. Aeration

A deep well pump is used to pump the groundwater in the deepwater well to the spray aeration device for aeration treatment. The iron and manganese in the groundwater are fully exposed to air to achieve the effect of oxidation, thereby removing iron ions and part of manganese ions in the groundwater.

2. Primary Filtration

The aerated groundwater is pumped into a sand tank filled with natural manganese sand for filtering treatment, thereby removing the remaining manganese and a part of the sediment and suspended material in the groundwater.

3. Precision Filtration

The groundwater that iron and manganese have been removed is sent to a security filter for more precise filtration treatment to remove the remaining sediment and suspended material in the groundwater. We highly recommend you to install Hongtek High Flow Filter for security filters. They have a large water flow and can reduce the footprint of the filtering device, thereby reducing costs.

The most widely used are 40" 5 micron HFA Series High Flow Filter and MP Series High Flow Cartridge Filter. 

4. Soften

Softening equipment is used to soften the groundwater after precision filtration. Generally, cation exchange resin is used to remove calcium and magnesium ions in the ground water, so that to achieve clear water that meets the requirement of use.