Good Quality Multi-Media Filter

The good quality multi-media filter is an important equipment widely used in the field of water treatment. It uses a variety of filter media with different characteristics to effectively remove impurities from water bodies, thereby improving water quality.

 

Parameters

Working pressure	0.05 - 1.0MPa
Working temperature	0 - 40°C
Control mode	Automatic or manual
Filtering speed	8 - 20m/h
Backwash strength	12 - 15 L/s.m2
Filtering layer resistance	>0.05MPa
Backwash duration	4 - 10min
Final turbidity	≤3
Material	Q235 rubber / phenolic epoxy resin / 304, 316L
Dimension	ф173 - ф3800

 

The Composition of the multi-media filter

(1) Tank

The housing of the good quality multi-media filter is usually made of strong and durable materials, such as carbon steel or stainless steel, to withstand pressure and ensure long-term stable operation.

(2) Filter media

Common media include quartz sand, anthracite, magnetite, etc. These media are packed in the tank in a certain order and proportion to form a multi-layer filter layer.

(3) Water distribution device

Ensure that the influent water is evenly distributed throughout the filter media layer to improve filtration efficiency.

(4) Water collection device

It is used to collect filtered clean water and export it.

 

The working principle of a multi-media filter

Water enters the multi-media filter from the water inlet, first flowing through the upper layer of coarser media, such as anthracite, to remove larger particles and suspended solids; then entering the middle layer of quartz sand and other media to further remove smaller impurities; finally through the bottom layer of finer media, to achieve deep purification of the water body. Impurities are trapped in the filter medium, while clean water flows out of the water outlet.

 

The filtration process of a multi-media filter

(1) Initial filtration stage

Impurities gradually accumulate on the surface and voids of the medium, and the filtration effect gradually improves.

(2) Stable operation stage

A stable filtration state is formed, and the effluent quality is maintained well.

(3) Filtration saturation stage

As impurities accumulate to a certain extent, filtration resistance increases, and backwashing is required to restore performance.

 

The advantages of the multi-media filter

(1) Good filtration effect

The good quality multi-media filter can effectively remove various types of impurities, including suspended solids, colloids, and organic compounds.

(2) Wide range of adaptability

The good quality multi-media filter can adapt to the treatment requirements of different water quality and quantity.

(3) Low operating costs

Medium prices are relatively low and maintenance is simple.

(4) Easy to operate

The good quality multi-media filter is highly automated and easy to control and manage.

 

Application field of a multi-media filter

(1) Industrial water treatment

Industries such as chemical, power, and steel provide high-quality water for the production process.

(2) Municipal water supply treatment

Guarantee the safety and quality of drinking water for residents.

(3) Sewage treatment and reuse

It plays an important role in wastewater treatment plants to achieve advanced treatment and reuse of wastewater.

(4) Seawater desalination pretreatment

Remove impurities from seawater to create conditions for subsequent desalination processes.

 

Maintenance and care of the multi-media filter

(1) Regular backwashing

Arrange backwashing reasonably according to operating conditions to remove accumulated impurities and restore filtration performance.

(2) Media replacement

When the medium fails or is over-contaminated, replace it with a new one in a timely manner.

(3) Equipment inspection

Regularly check the integrity of tanks, pipes, valves, and other components to ensure the normal operation of the equipment.

(4) Monitoring of operating parameters

Pay close attention to parameters such as influent water quality, flow rate, and pressure in order to adjust the operation strategy in a timely manner.

 

The development trend of the multi-media filter

(1) Intelligent control

Utilize advanced control systems to achieve more accurate operation control and automated management.

(2) Research and development of new filter media

Continuously explore better performance and lower cost filter media.

(3) Combining with other technologies

Combined with membrane treatment and other technologies, the overall water treatment effect can be improved.

 

FAQ

1. Q: What is the function of a filter?

A: The main function of a filter is to remove solid particles, impurities, and harmful substances from liquids or gases, in order to achieve purification, clarification, and protection of equipment.

2. Q: How to choose a suitable filter?

A: When choosing a filter, factors such as the properties of the material being filtered (e.g., viscosity, temperature, corrosion), required filtration accuracy, processing capacity, operating pressure and medium, as well as the type, material, size, and installation method of the filter should be considered.

3. Q: What is the working principle of a filter?

A: The working principle of a filter mainly relies on physical screening, deep interception, absorption, or chemical reactions to remove impurities or harmful components from the material being filtered.

4. Q: How to maintain and care for a filter?

A: Maintenance of filters includes regular cleaning or replacement of filter elements, inspection of seals and fasteners, maintaining stable operating pressure, and avoiding overloading. Specific methods should be referenced from the filter's instruction manual and maintenance guides.

5. Q: What is the service life of a filter?

A: The service life of a filter depends on its working environment, processing volume, and filtration accuracy. Generally, when the filter's pressure drop reaches a certain value or the filtration effect decreases significantly, it needs to be replaced or cleaned.

6. Q: What should be paid attention to during filter installation?

A: During filter installation, attention should be paid to the directionality, ensuring that the fluid enters and exits from the correct ports. Also, the piping system should be cleaned before installation, and the filter should be securely fastened and sealed as required by the instructions.

7. Q: What is the replacement cycle for filters?

A: The replacement cycle for filters depends on their working conditions and filtration requirements, and is usually indicated by pressure difference indicators or timers. When the filter's pressure drop reaches the set value or the filtration effect decreases, it should be replaced in a timely manner.

 

Why Choose Us

· Professional manufacturer with many years' experience

· Good quality with competitive price

· OEM & ODM are welcome

· Various payment items are acceptable

· Good service by experienced manager

 

AIDA Philosophy

1. Management Concept:

· Satisfy the customers' demand --- Touch customers, trust with our products and services

· Make employees happy --- Pursue higher material and spiritual happiness

2. Company Mission:

· Focus on customer needs, provide best filtering solution

· To be the lifelong partner with customers

3. Corporate Vision:

· Become a global purification leadership brand

4. Values:

· Customer: Pursue the ultimate experience, enjoy excellent quality

· Team: Trust, responsibility, growth, win-win

· Work: Simple, sincere, efficient, dedicated