What is a multi-media filter?
Multi media filter, as the name suggests, is the use of two or more filtering materials (such as anthracite,
quartz sand, etc.) to filter raw water under a certain pressure, effectively removing suspended particles,
colloids, organic matter and other impurities in the water. Good filtering effect, strong pollutant
interception ability, controllable operating costs, and very convenient operation and maintenance,
thus playing an important role in multiple fields.
In which scenarios does it usually appear?
01 Industrial circulating cooling water treatment process
In industrial production, if a large amount of suspended solids or algae enter the cooling water system,
it is easy to cause pipeline blockage, equipment scaling, and even corrosion. As the pre-processing unit
of the system, the multi-media filter can effectively intercept these impurities, which helps to improve
the operating efficiency of the system and extend the service life of the equipment.
02 Pre treatment equipment for membrane treatment system
Membrane systems such as reverse osmosis and ultrafiltration have very high requirements for the
quality of incoming water, especially to avoid being blocked by suspended solids and colloids. Multi
media filters can effectively control the density index of sludge in the inlet water, protect these precision
and high-value membrane components, and become an important part of the deep water treatment
process.
03 Purification equipment for urban and rural water supply
There may be problems such as high iron and manganese content and high turbidity in urban tap water,
groundwater, and surface water. Multi media filters can effectively improve water quality and can be used
as drinking water pretreatment equipment in residential areas, villages, factories, and other places,
providing clear and clean domestic water for everyone.
04 Advanced treatment unit for wastewater reuse
In wastewater treatment and reclaimed water reuse projects, multi-media filters are often used as tertiary
treatment equipment to remove suspended solids in water, allowing the treated water to be used for
greening, flushing, industrial cooling, etc., achieving the recycling of water resources.
05 Common equipment in multiple industrial fields
In industries such as petroleum, chemical, power, and metallurgy, different processes have different
requirements for water quality. Multi media filters are often used as the basic unit in water treatment
processes due to their flexibility and reliability, meeting the water needs of different scenarios.
06 Water Quality Maintenance Equipment for Leisure and Aquaculture Industry
Swimming pools and aquaculture both require clean water quality. Multi media filters effectively remove
organic matter and suspended particles from water through cyclic filtration, providing a comfortable and
clear water environment for swimmers and aquatic organisms.
When using a multi-media filter, it is generally recommended that the inlet turbidity does not exceed
20-50NTU, the normal operating pressure is between 0.2-0.6MPa, and the operating flow rate is controlled
at 8-12m/h to ensure that the outlet turbidity remains stable at a low level.
From industrial manufacturing to daily life, from sewage treatment to resource reuse, multi-media filters
silently play the role of "guardians of clean water". It may not be often mentioned by people, but it truly
supports the stable operation of countless systems, maintaining the cleanliness and safety of every drop
of our water.
