Products
Combined Packing Filler
Our Combined Packing Filler is a high-efficiency composite biological carrier specifically engineered for municipal and industrial water/wastewater treatment systems, developed by integrating the advantages of soft packing and semi-soft packing. Crafted with precision structural design and high-quality corrosion-resistant materials, it consists of fiber bundles, snowflake-shaped plastic rings, plastic sleeves, and a central rope—forming a three-dimensional porous structure that optimizes microbial attachment, gas-liquid mass transfer, and pollutant degradation. Widely applied in aerobic and anaerobic treatment processes such as biological contact oxidation, hydrolysis acidification, MBR (Membrane Bioreactor), and MBBR (Moving Bed Biofilm Reactor), this product effectively improves treatment efficiency, reduces energy consumption, and ensures stable compliance with global water treatment standards, including ISO 9301:2021, ISO 14001:2015, EU Urban Wastewater Treatment Directive (EU 2024/3019), and US EPA Effluent Guidelines. It has become an essential core component for efficient, cost-effective wastewater treatment worldwide.
Product Description
Our Combined Packing Filler is a high-efficiency composite biological carrier specifically engineered for municipal and industrial water/wastewater treatment systems, developed by integrating the advantages of soft packing and semi-soft packing. Crafted with precision structural design and high-quality corrosion-resistant materials, it consists of fiber bundles, snowflake-shaped plastic rings, plastic sleeves, and a central rope—forming a three-dimensional porous structure that optimizes microbial attachment, gas-liquid mass transfer, and pollutant degradation. Widely applied in aerobic and anaerobic treatment processes such as biological contact oxidation, hydrolysis acidification, MBR (Membrane Bioreactor), and MBBR (Moving Bed Biofilm Reactor), this product effectively improves treatment efficiency, reduces energy consumption, and ensures stable compliance with global water treatment standards, including ISO 9301:2021, ISO 14001:2015, EU Urban Wastewater Treatment Directive (EU 2024/3019), and US EPA Effluent Guidelines. It has become an essential core component for efficient, cost-effective wastewater treatment worldwide.
Unlike single soft or semi-soft packing that suffers from issues such as fiber agglomeration, difficult biofilm renewal, or low specific surface area, our Combined Packing Filler solves these industry pain points through its integrated structure. The snowflake-shaped plastic rings serve as a rigid skeleton to support the fiber bundles, preventing agglomeration and ensuring uniform distribution of the fiber bundles in water . The hydrophilic fiber bundles provide a large specific surface area for microbial attachment, while the inner snowflake-shaped plastic branches effectively cut bubbles, improving oxygen transfer rate and utilization . This synergistic design combines the advantages of rapid biofilm formation (from soft packing) and stable structure (from semi-soft packing), making it suitable for both high-concentration organic wastewater and low-concentration municipal sewage treatment, and adapting to complex water quality fluctuations.
Unlike single soft or semi-soft packing that suffers from issues such as fiber agglomeration, difficult biofilm renewal, or low specific surface area, our Combined Packing Filler solves these industry pain points through its integrated structure. The snowflake-shaped plastic rings serve as a rigid skeleton to support the fiber bundles, preventing agglomeration and ensuring uniform distribution of the fiber bundles in water . The hydrophilic fiber bundles provide a large specific surface area for microbial attachment, while the inner snowflake-shaped plastic branches effectively cut bubbles, improving oxygen transfer rate and utilization . This synergistic design combines the advantages of rapid biofilm formation (from soft packing) and stable structure (from semi-soft packing), making it suitable for both high-concentration organic wastewater and low-concentration municipal sewage treatment, and adapting to complex water quality fluctuations.
Product Feature
Core Working Principle
Our Combined Packing Filler operates based on the biofilm method, relying on its unique composite structure to create an optimal microenvironment for microbial growth and pollutant degradation, seamlessly integrating with various water treatment processes. It realizes efficient solid-liquid-gas mass transfer and microbial metabolism, achieving high-efficiency wastewater purification:
1.Microbial Attachment & Biofilm Formation: The hydrophilic fiber bundles (made of vinylon, polyester, or polypropylene) have a large specific surface area (250–1500 m²/m³ depending on specifications), providing ample attachment sites for aerobic, anaerobic, and anoxic microorganisms. Under suitable conditions (18–30℃, proper nutrient ratio and gas-water ratio), stable biofilm can be formed in 6–7 days—half the time required for other single packing—and full-load operation can be achieved quickly. The snowflake-shaped plastic rings support the fiber bundles, avoiding agglomeration and ensuring uniform biofilm distribution.
2.Gas-Liquid Mass Transfer & Oxygen Utilization: When aeration is performed, the inner snowflake-shaped plastic branches of the packing effectively cut large bubbles into tiny, uniform ones, extending the bubble residence time in water and increasing oxygen transfer rate and utilization by 20–30% . The three-dimensional porous structure ensures uniform distribution of gas and water, promoting full contact between wastewater pollutants and the active biofilm on the packing surface, thereby enhancing the efficiency of aerobic biochemical reactions.
3.Pollutant Degradation & Biofilm Renewal: Microorganisms on the biofilm decompose organic matter, ammonia nitrogen, phosphorus, and other pollutants in wastewater into harmless substances (CO₂, H₂O, nitrogen gas) through adsorption and metabolism. During aeration and water flow, the fiber bundles and plastic rings swing and rub against each other, which automatically peels off aged, inactive biofilm—ensuring the biofilm remains active and efficient. The high porosity (≥95%) and variable pore size prevent clogging, even in wastewater with high suspended solids (SS) content.
4.Aerobic & Anaerobic Adaptability: The flexible structure of the packing creates a stratified microenvironment—high oxygen concentration in the outer layer (suitable for aerobic microorganisms) and relatively anoxic in the inner layer (suitable for anaerobic and denitrifying microorganisms). This enables simultaneous nitrification and denitrification, improving the efficiency of nitrogen and phosphorus removal, and making it suitable for both aerobic and anaerobic treatment processes.
Key Product Advantages
1.Synergistic Performance of Dual Fillers: Integrates the advantages of soft and semi-soft packing—overcoming the agglomeration problem of soft packing and the small specific surface area of semi-soft packing. The plastic ring skeleton ensures structural stability, while the fiber bundles provide a large attachment area for microorganisms, achieving efficient biofilm formation and pollutant degradation.
2.Rapid Biofilm Formation & High Efficiency: The hydrophilic fiber bundles and large specific surface area (250–1500 m²/m³) enable rapid microbial colonization, with stable biofilm formation in 6–7 days. The biofilm weight can reach 55–84 kg/m³, significantly increasing microbial biomass and pollutant degradation efficiency (COD removal rate can be increased by 10–20%) .
3.High Oxygen Utilization & Energy Saving: The snowflake-shaped plastic rings effectively cut bubbles, refining aeration and increasing oxygen transfer rate by 20–30%. This reduces aeration energy consumption by 15–25% while enhancing the efficiency of aerobic biochemical reactions, lowering overall operational costs.
4.Anti-Clogging & Self-Renewing: The three-dimensional porous structure (porosity ≥95%) and flexible fiber bundles avoid agglomeration and clogging. Mutual friction between fiber bundles and plastic rings during water flow and aeration realizes automatic biofilm renewal, reducing manual cleaning frequency and ensuring stable long-term operation.
5.Strong Corrosion Resistance & Durability: Made of high-quality materials—fiber bundles (vinylon, polyester, polypropylene) and plastic rings (PP, PE) with anti-aging, anti-oxidation, and hydrophilic additives . It can withstand long-term operation in acidic, alkaline, and high-salt wastewater (pH 2–12) and has a service life of 3–5 years, which is longer than ordinary single packing.
6.Flexible Specifications & Customization: Available in standard specifications (diameter 120mm, 150mm, 180mm, 200mm) with different unit string counts and bulk densities. We provide customized solutions (material, size, density, fiber length) according to the specific water quality, treatment process, and tank size, ensuring perfect adaptation to different project needs.
7.Easy Installation & Low Maintenance: Adopting a modular hanging design, the packing is fixed on the upper and lower frames with binding ropes (10cm of spare rope at both ends for easy binding) . It supports on-site installation and prefabricated hoisting, requiring no complex equipment, and the lightweight design simplifies transportation and replacement . The self-cleaning function reduces maintenance workload and costs.
8.Wide Adaptability & Versatility: Suitable for various water treatment processes, including biological contact oxidation tanks, hydrolysis acidification tanks, anaerobic reactors, MBR, MBBR, and aquaculture water purification systems. It can adapt to fluctuations in wastewater quality (COD 200–5000 mg/L) and flow, with strong impact load resistance, making it ideal for municipal sewage and industrial wastewater (printing and dyeing, papermaking, pharmaceutical, food fermentation, petrochemical) treatment.
9.Global Compliance & Environmental Friendliness: The raw materials are non-toxic, non-polluting, and comply with ISO 14001:2015 environmental standards. The product fully meets international water treatment standards and regional regulations (EU, US EPA), helping customers smoothly pass environmental inspections and meet sustainable development goals.
Typical Applications
Our Combined Packing Filler is widely applied in various municipal and industrial water/wastewater treatment scenarios, serving as a core biological carrier for efficient pollutant degradation and water purification:
1.Municipal Sewage Treatment: Biological contact oxidation tanks, hydrolysis acidification tanks, and rural decentralized sewage treatment systems—removing organic matter, ammonia nitrogen, and phosphorus to meet discharge standards.
2.Industrial Wastewater Treatment: Treatment of wastewater from printing and dyeing, papermaking, pharmaceutical, food fermentation, petrochemical, and textile industries—improving wastewater biodegradability in hydrolysis acidification stages and enhancing degradation efficiency of refractory organic pollutants.
3.High-Concentration Organic Wastewater Treatment: Anaerobic treatment of high-concentration wastewater from distilleries, sugar refineries, and food processing—adapting to high pollutant concentrations and promoting efficient degradation.
4.Special Water Treatment: MBR and MBBR systems—using bubble scouring to prevent membrane fouling and extend membrane service life ; river and lake water remediation, artificial lake and landscape water purification—improving water quality and inhibiting eutrophication.
5.Aquaculture Water Purification: Recirculating aquaculture systems—removing ammonia nitrogen, nitrite, and organic residues to improve water quality and reduce water exchange frequency.
Why Choose Our Combined Packing Filler for Water Treatment?
As a professional manufacturer of water treatment biological packing, we specialize in the R&D, production, and customization of Combined Packing Filler. We integrate international advanced material technology and water treatment engineering experience, strictly controlling each production process—from raw material selection to structural molding—to ensure product quality consistency and performance stability. Our products adopt high-quality raw materials and precision processing technology, complying with international standards such as ISO 9301:2021, and have passed strict quality testing to ensure reliable performance.
We provide one-stop services from product customization, technical consultation, on-site installation guidance to after-sales maintenance, tailoring solutions according to the specific parameters of each customer’s water treatment system (tank size, process type, water quality characteristics). Our Combined Packing Filler has been exported to dozens of countries and regions, widely used in various water treatment projects, and recognized for its high efficiency, durability, energy saving, and ease of maintenance.
In an era of increasingly stringent global water treatment standards and growing demand for energy conservation and emission reduction, our Combined Packing Filler helps enterprises optimize treatment efficiency, reduce operational costs, and achieve environmental compliance. Choosing our Combined Packing Filler is your reliable guarantee for efficient, stable, and sustainable water treatment.
Our Combined Packing Filler operates based on the biofilm method, relying on its unique composite structure to create an optimal microenvironment for microbial growth and pollutant degradation, seamlessly integrating with various water treatment processes. It realizes efficient solid-liquid-gas mass transfer and microbial metabolism, achieving high-efficiency wastewater purification:
1.Microbial Attachment & Biofilm Formation: The hydrophilic fiber bundles (made of vinylon, polyester, or polypropylene) have a large specific surface area (250–1500 m²/m³ depending on specifications), providing ample attachment sites for aerobic, anaerobic, and anoxic microorganisms. Under suitable conditions (18–30℃, proper nutrient ratio and gas-water ratio), stable biofilm can be formed in 6–7 days—half the time required for other single packing—and full-load operation can be achieved quickly. The snowflake-shaped plastic rings support the fiber bundles, avoiding agglomeration and ensuring uniform biofilm distribution.
2.Gas-Liquid Mass Transfer & Oxygen Utilization: When aeration is performed, the inner snowflake-shaped plastic branches of the packing effectively cut large bubbles into tiny, uniform ones, extending the bubble residence time in water and increasing oxygen transfer rate and utilization by 20–30% . The three-dimensional porous structure ensures uniform distribution of gas and water, promoting full contact between wastewater pollutants and the active biofilm on the packing surface, thereby enhancing the efficiency of aerobic biochemical reactions.
3.Pollutant Degradation & Biofilm Renewal: Microorganisms on the biofilm decompose organic matter, ammonia nitrogen, phosphorus, and other pollutants in wastewater into harmless substances (CO₂, H₂O, nitrogen gas) through adsorption and metabolism. During aeration and water flow, the fiber bundles and plastic rings swing and rub against each other, which automatically peels off aged, inactive biofilm—ensuring the biofilm remains active and efficient. The high porosity (≥95%) and variable pore size prevent clogging, even in wastewater with high suspended solids (SS) content.
4.Aerobic & Anaerobic Adaptability: The flexible structure of the packing creates a stratified microenvironment—high oxygen concentration in the outer layer (suitable for aerobic microorganisms) and relatively anoxic in the inner layer (suitable for anaerobic and denitrifying microorganisms). This enables simultaneous nitrification and denitrification, improving the efficiency of nitrogen and phosphorus removal, and making it suitable for both aerobic and anaerobic treatment processes.
Key Product Advantages
1.Synergistic Performance of Dual Fillers: Integrates the advantages of soft and semi-soft packing—overcoming the agglomeration problem of soft packing and the small specific surface area of semi-soft packing. The plastic ring skeleton ensures structural stability, while the fiber bundles provide a large attachment area for microorganisms, achieving efficient biofilm formation and pollutant degradation.
2.Rapid Biofilm Formation & High Efficiency: The hydrophilic fiber bundles and large specific surface area (250–1500 m²/m³) enable rapid microbial colonization, with stable biofilm formation in 6–7 days. The biofilm weight can reach 55–84 kg/m³, significantly increasing microbial biomass and pollutant degradation efficiency (COD removal rate can be increased by 10–20%) .
3.High Oxygen Utilization & Energy Saving: The snowflake-shaped plastic rings effectively cut bubbles, refining aeration and increasing oxygen transfer rate by 20–30%. This reduces aeration energy consumption by 15–25% while enhancing the efficiency of aerobic biochemical reactions, lowering overall operational costs.
4.Anti-Clogging & Self-Renewing: The three-dimensional porous structure (porosity ≥95%) and flexible fiber bundles avoid agglomeration and clogging. Mutual friction between fiber bundles and plastic rings during water flow and aeration realizes automatic biofilm renewal, reducing manual cleaning frequency and ensuring stable long-term operation.
5.Strong Corrosion Resistance & Durability: Made of high-quality materials—fiber bundles (vinylon, polyester, polypropylene) and plastic rings (PP, PE) with anti-aging, anti-oxidation, and hydrophilic additives . It can withstand long-term operation in acidic, alkaline, and high-salt wastewater (pH 2–12) and has a service life of 3–5 years, which is longer than ordinary single packing.
6.Flexible Specifications & Customization: Available in standard specifications (diameter 120mm, 150mm, 180mm, 200mm) with different unit string counts and bulk densities. We provide customized solutions (material, size, density, fiber length) according to the specific water quality, treatment process, and tank size, ensuring perfect adaptation to different project needs.
7.Easy Installation & Low Maintenance: Adopting a modular hanging design, the packing is fixed on the upper and lower frames with binding ropes (10cm of spare rope at both ends for easy binding) . It supports on-site installation and prefabricated hoisting, requiring no complex equipment, and the lightweight design simplifies transportation and replacement . The self-cleaning function reduces maintenance workload and costs.
8.Wide Adaptability & Versatility: Suitable for various water treatment processes, including biological contact oxidation tanks, hydrolysis acidification tanks, anaerobic reactors, MBR, MBBR, and aquaculture water purification systems. It can adapt to fluctuations in wastewater quality (COD 200–5000 mg/L) and flow, with strong impact load resistance, making it ideal for municipal sewage and industrial wastewater (printing and dyeing, papermaking, pharmaceutical, food fermentation, petrochemical) treatment.
9.Global Compliance & Environmental Friendliness: The raw materials are non-toxic, non-polluting, and comply with ISO 14001:2015 environmental standards. The product fully meets international water treatment standards and regional regulations (EU, US EPA), helping customers smoothly pass environmental inspections and meet sustainable development goals.
Typical Applications
Our Combined Packing Filler is widely applied in various municipal and industrial water/wastewater treatment scenarios, serving as a core biological carrier for efficient pollutant degradation and water purification:
1.Municipal Sewage Treatment: Biological contact oxidation tanks, hydrolysis acidification tanks, and rural decentralized sewage treatment systems—removing organic matter, ammonia nitrogen, and phosphorus to meet discharge standards.
2.Industrial Wastewater Treatment: Treatment of wastewater from printing and dyeing, papermaking, pharmaceutical, food fermentation, petrochemical, and textile industries—improving wastewater biodegradability in hydrolysis acidification stages and enhancing degradation efficiency of refractory organic pollutants.
3.High-Concentration Organic Wastewater Treatment: Anaerobic treatment of high-concentration wastewater from distilleries, sugar refineries, and food processing—adapting to high pollutant concentrations and promoting efficient degradation.
4.Special Water Treatment: MBR and MBBR systems—using bubble scouring to prevent membrane fouling and extend membrane service life ; river and lake water remediation, artificial lake and landscape water purification—improving water quality and inhibiting eutrophication.
5.Aquaculture Water Purification: Recirculating aquaculture systems—removing ammonia nitrogen, nitrite, and organic residues to improve water quality and reduce water exchange frequency.
Why Choose Our Combined Packing Filler for Water Treatment?
As a professional manufacturer of water treatment biological packing, we specialize in the R&D, production, and customization of Combined Packing Filler. We integrate international advanced material technology and water treatment engineering experience, strictly controlling each production process—from raw material selection to structural molding—to ensure product quality consistency and performance stability. Our products adopt high-quality raw materials and precision processing technology, complying with international standards such as ISO 9301:2021, and have passed strict quality testing to ensure reliable performance.
We provide one-stop services from product customization, technical consultation, on-site installation guidance to after-sales maintenance, tailoring solutions according to the specific parameters of each customer’s water treatment system (tank size, process type, water quality characteristics). Our Combined Packing Filler has been exported to dozens of countries and regions, widely used in various water treatment projects, and recognized for its high efficiency, durability, energy saving, and ease of maintenance.
In an era of increasingly stringent global water treatment standards and growing demand for energy conservation and emission reduction, our Combined Packing Filler helps enterprises optimize treatment efficiency, reduce operational costs, and achieve environmental compliance. Choosing our Combined Packing Filler is your reliable guarantee for efficient, stable, and sustainable water treatment.
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