CN
CN
MENU

Product Center

Green Innovation · Scientific and Technological Development · Industrial Responsibility · Joint Construction of Civilized Ecology

Fiber ball filter

Fiber ball filters are widely used in the deep treatment of various industrial and municipal wastewater, reclaimed water reuse projects, and water treatment fields. In oilfield wastewater treatment, it is mainly used for coarse, medium, and fine filtration of oily wastewater reinjection, breaking through the technical bottleneck of low-permeability reservoir water injection. In industrial water treatment, it is used for circulating cooling water bypass filtration, wastewater deep treatment, and reverse osmosis pretreatment. It is suitable for high standard water use and wastewater reuse in industries such as steel, power, chemical, metallurgical, papermaking, textile, food, printing and dyeing. In the field of municipal water supply, it is used for surface water purification, deep treatment of domestic water, and treatment of circulating water in swimming pools. In addition, it is widely used as a filtration unit for boiler feedwater treatment, purified water production, and upgrading of urban sewage treatment plants.

National Service Hotline：400-611-6861
Product Introduction

Fiber ball filter is a pressure type precision water treatment equipment, which adopts a steel circular tank structure and uses fiber balls as the filtering medium. It belongs to the pressure type filter. The core filter material is a spherical flexible filter material made of chemical fibers with high specific surface area and high porosity. Compared with traditional rigid particle filter materials (such as quartz sand), fiber ball filter material has the characteristics of compressibility, good elasticity, and high porosity, with a porosity of up to 90% -95%. The equipment mainly consists of a tank, a filter layer, a water distribution device, a water collection device, a backwashing device, and a control system. During operation, the water flow passes through the filter layer from top to bottom. Under the pressure of the water flow and the weight of the filter material, the fiber balls are compressed, and the porosity of the filter layer gradually decreases along the direction of the water flow, forming an ideal gradient filtration structure with upper and lower densities, thus achieving deep filtration.

Technical Advantage
High filtration accuracy
The removal rate of suspended solids in water is close to 100%, and particles larger than 5 μ m can be intercepted. The effluent turbidity is ≤ 3NTU. It has a significant removal effect on impurities such as bacteria, viruses, large organic molecules, colloids, iron, manganese, etc., with an oil removal rate of ≥ 90%.
Fast filtration speed
The filtration speed can reach 20-60m/h, which is equivalent to 2-3 times the flow rate of traditional filters such as quartz sand and activated carbon. The maximum speed can reach 80m/h, and the processing efficiency is significantly improved.
Large interception capacity
The interception capacity is 5-10kg/m ³, which is 3-5 times that of traditional quartz sand filters (1.5-2.0kg/m ³). The high-quality fiber ball can hold 10-15 kg SS/m ³ of dirt, and the backwash cycle can be extended to 48-72 hours.
Small footprint
Under the same processing flow rate, the footprint is less than one-third of that of traditional filters, which can save more than 50% of the footprint.
Low self consumption water
The backwash water consumption is only 1% -2% of the periodic water production, far lower than the backwash water consumption of traditional filters.
Long service life of filter material
Fiber balls are wear-resistant, corrosion-resistant, chemically stable, and can be chemically regenerated. The service life is generally 5-10 years. High quality fiber ball yarn has a breaking strength of ≥ 3.5cN/dtex.
Wide application range
Working pH value 2-12, working temperature 0-50 ℃ (special temperature can be customized). The performance retention rate under low temperature conditions is ≥ 85%, and the cold resistance is excellent.
Process Selection

1. Select according to the requirements of effluent water quality: For conventional water treatment with SS ≤ 5mg/L and turbidity ≤ 3NTU, use ordinary fiber ball filters; The effluent requirements are SS ≤ 2mg/L, turbidity ≤ 1NTU, or oily wastewater treatment, using modified fiber ball filters; High precision modified fiber ball filters are used for pre filtration of membrane systems such as reverse osmosis and ultrafiltration.

2. Selection based on inlet water quality: Conventional municipal sewage secondary effluent, circulating cooling water, surface water, etc. use ordinary fiber ball filters; Modified fiber ball filters are used for oily wastewater such as oilfield reinjection water, petrochemical wastewater, and mechanical processing wastewater; High concentration suspended solids wastewater needs to undergo coagulation and sedimentation pretreatment before entering the fiber ball filter.

3. Selection based on processing scale: For small projects with a daily processing capacity of<1000m ³, a single filter with a diameter of ≤ 1.6m should be selected; Multiple filters with a diameter of 2.0-3.0m are selected in parallel for medium-sized projects with a daily processing capacity of 1000-10000m ³; Large projects with a daily processing capacity>10000m ³ adopt a modular combined filtration system.

4. Selection by application field: Ordinary fiber ball filters are used for circulating cooling water side filtration, which has low operating costs; Modified fiber ball filters are used for oilfield reinjection water and oily industrial wastewater; Food grade fiber ball filter media and stainless steel tanks are used for deep treatment of drinking water.



Equipment Selection

Parameter Description and Selection Points

Equipment model selection LF-XWQ series: vertical steel pressure filter; FS series: Steel round tank pressure filter; YSQ series: Steel round tank pressure filter. Based on the comprehensive judgment of water quality treatment, effluent requirements, and site conditions

The processing capacity of a single unit ranges from 0.5 to 210m ³/h. When selecting, the diameter of the tank body is determined based on the design water volume and filtration rate: Q=A × v (Q: processing capacity m ³/h, A: filtration area m ², v: filtration rate m/h). When the water quality fluctuates greatly, a 10% -20% flow margin should be reserved

Tank specifications and corresponding flow rate: Φ 800: 10-20m ³/h; Φ1000：15—30m³/h； Φ1200：25—50m³/h； Φ1500：35—70m³/h； Φ2000：50—90m³/h； Φ2200：80—120m³/h； Φ2500：100—150m³/h； Φ 3000: approximately 210m ³/h

The standard filter layer height is 1200-1500mm, and the filter volume is 0.60-7.36m ³

The filling of filter material is calculated based on the volume of the tank, with a porosity of about 93%. The volume of filter material is equal to the cross-sectional area of the tank multiplied by the height of the filter layer

The main material is carbon steel Q235B (under normal working conditions, with lower cost); 304/316L stainless steel (strong corrosion, oily wastewater, food grade requirements); Fiberglass reinforced plastic/lining adhesive (high salt and strong corrosive water quality). Tank wall thickness 6-12mm

Work pressure design pressure 0.6MPa, maximum 0.8MPa

Working temperature 0-50 ℃ (regular type), special temperature can be customized

The backwashing system adopts a combination of gas and water backwashing: the gas backwashing pressure is 0.1-0.12MPa, and the gas volume is 10-15m ³/(m ² · h); Water washing pressure 0.12-0.15MPa, water volume 15-20m ³/(m ² · h); The total backwash time is 10-15 minutes. Filters with a diameter of ≥ 1000mm should be equipped with a stirring device to enhance the cleaning effect by stirring the filter material during backwashing

The water consumption for backwashing is generally 1% -2% of the periodic water production

Automated control should be equipped with inlet and outlet pressure differential transmitters, online turbidity monitoring devices, and automatic backwashing valve groups to achieve functions such as automatic backwashing when the pressure differential meets the standard and turbidity exceeding the limit alarm. Can be linked and controlled with the upper computer, with remote monitoring capability

Strengthen backwashing every 3 months during maintenance cycle (increase water pressure to 0.2 MPa and extend flushing to 20 minutes); It needs to be supplemented or replaced according to the wear and tear of the filter material after 1-2 years of operation

The installation method is vertical installation, fixed to the civil foundation with anchor bolts. The equipment should be kept level, and the inlet and outlet pipes should be firmly connected to the flanges to ensure sealing

Following the standards GB/T 14827-2011 "Fiber Ball Filters for Water Treatment", HG/T 3925-2014 "Fiber Ball Filter Media", GB150-98 "Steel Pressure Vessels", JB2932 "Technical Conditions for Manufacturing Water Treatment Equipment", GB50221-95 "Quality Inspection and Evaluation Standards for Steel Structure Engineering"


Friendship Link
Huapu Environmental Protection Huapu Water Treatment Equipment