Value-For-Money Quartz Sand Filter

The value-for-money quartz sand filter, as a basic and important equipment in the water treatment industry, plays a key role in purifying water quality. It uses quartz sand as a filter medium to effectively remove suspended solids, organic impurities, colloidal particles, microorganisms, and some heavy metal ions in water through physical interception, thus achieving the purpose of reducing water turbidity and improving water quality. The value-for-money quartz sand filter is not only widely used in drinking water treatment, industrial water pretreatment, cooling circulating water treatment, swimming pool water treatment and other fields, but also favored for its economical, efficient and easy maintenance characteristics.

 

Quartz sand material characteristics

1. Hardness and stability

Quartz sand is taken from quartz stone and belongs to non-metallic minerals. It has high hardness, strong wear resistance and stable chemical properties. It is a silicate mineral. This property makes quartz sand not easy to wear or dissolve during long-term water treatment, ensuring the long-term effectiveness of the filter medium.

2. Multi-level filtering structure

The quartz sand inside the value-for-money quartz sand filter is layered according to the particle size, usually from top to bottom for fine sand, medium sand and coarse sand to form a layered filter structure. This design is conducive to intercepting impurities of different sizes and improving filtration efficiency.

 

Working principle and process

1. Filtering process

- Physical Interception and Adsorption

Under a certain pressure, raw water passes through the quartz sand filter layer. Due to the physical properties of the surface and pores of the quartz sand, suspended solids and impurities in the water are intercepted or adsorbed on the sand surface and gaps. Large particles are trapped in the coarser part of the filter layer, while small particles are trapped in the finer part of the filter layer.

- Multi-mechanism action

In the filtration process, in addition to direct interception, it also involves contact coagulation, inertial collision, and mutual adsorption between suspended particles, which work together to complete the removal of impurities.

2. Backwash process

- Backwash Start

With the increase of filtration time, the accumulation of impurities in the surface and gap of the quartz sand increases, resulting in an increase in filtration resistance. When the set pressure difference or time threshold is reached, the backwash procedure is automatically started.

- Backwashing mechanism

The backwashing process changes the direction of the water flow, usually with air scrubbing, to form a mixed flow of air and water, which makes the filter bed loose and prompts the impurities attached to the sand to fall off. The water flow carries these impurities out of the filter and discharges them through the sewage outlet.

- Filter material regeneration

After backwashing, the quartz sand filter media can be rearranged to restore the original filtration efficiency and prepare to enter the next filtration cycle.

 

Parameters

Working pressure	0.05 ~ 1.0 MPa
Working temperature	0 ~ 40°C
Flow	0.5 m3/h ~ 140 m3/h
Control mode	Automatic or manual
Dimension	ф173 ~ ф3800
Filtering speed	8 ~ 20 m/h
Material	Q235 rubber / phenolic epoxy resin / 304, 316L
Backwash strength	12 ~ 15 L/s. m2
Filtering layer resistance	>0.05 MPa
Backwash duration	4 ~ 10 min
Final turbidity	≤3

 

Application fields and instances

1. Drinking water treatment

In drinking water treatment, quartz sand filters are used as a pretreatment step to effectively remove suspended solids and particles from the water, providing good water quality conditions for subsequent advanced treatments such as disinfection and softening.

2. Industrial water

In the industrial sector, especially in the chemical, power, and steel industries, quartz sand filters are used to remove suspended solids and impurities from circulating cooling water, prevent equipment corrosion and clogging, and ensure the stable operation of production systems.

3. Sewage treatment

In the final stage of wastewater treatment, quartz sand filters are used as a means of advanced treatment to further remove suspended solids in the water after biochemical treatment, improve the quality of the effluent, and meet discharge or reuse standards.

4. Swimming pool circulating water

In the swimming pool circulating water treatment system, quartz sand filters are used to remove dust, grease, microorganisms, etc. from the water to maintain clear and transparent water quality and ensure the health and safety of swimmers.

 

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