Solving the planet’s environmental challenges with eco-friendly equipment.
- Product Description
-
Product Introduction
Equipment Name: Gravity-Flow Suspended-Particle Media Biological Filtration Reactor (3-Free direct filtration technology)
English Name: Artesian Suspended Solid Filtration Biological Reactor (ASSFBR)
Application scenarios: biochemical backend sludge–water separation (replacing the secondary sedimentation tank and MBR) / denitrification sludge–water separation
The gravity-flow suspended-media biological filtration reactor, also known as the denitrification biological filtration reactor and commonly referred to as the “3-Free” direct-filter unit (Patent No.: ZL2018 20780799.4), is a highly efficient water-treatment device independently developed by our company based on years of practical experience in water treatment. It integrates sludge–water separation and filtration with biological reaction functions into a single unit.
This equipment achieves highly efficient solid–liquid separation of suspensions by passing the suspension through one or more layers of specially designed porous media under a small pressure differential. The liquid passes freely through the porous media, while solid particles are effectively retained on the media surface. When the suspension contains relatively large and high-concentration solid particles, these particles rapidly accumulate on the filter medium surface to form a filter cake, further enhancing the retention effect. Even if some fine particles initially manage to penetrate the media layer, they quickly undergo “bridging” within the pore channels, thereby trapping smaller suspended particles and ensuring that the filtrate is clear.
Meanwhile, the ASSFBR employs a vertical filtration design: the water flow is oriented at a 90° angle to the filter media, and the filter elements are also arranged vertically. The filter cake that forms on the surface of the filter elements is subjected to the combined action of the filtration pressure differential and gravity. When the self-weight of the filter cake exceeds the filtration adsorption force, it can naturally detach, thereby maintaining a stable cake thickness and ensuring continuous, stable filtrate production. In addition, the system supports backwashing from the interior of the filter elements, effectively restoring their long-term filtration performance and extending their service life.
ASSFBR boasts stable operation, high removal efficiency, and easy maintenance, making it particularly well-suited for wastewater treatment with high suspended solids content and for denitrifying biofiltration applications. It is an ideal solution for achieving efficient, energy-saving water treatment.
Process Characteristics
ASSFBR is a highly integrated technology that combines granular-media filtration and biological treatment. It originates from the sludge-membrane filtration that forms on the surface of the filter bed in conventional filtration; however, its unique structural design and gravity-flow operation effectively address the common challenges of conventional filtration, such as easy clogging, difficult cleaning, short service life, and high operating costs. Moreover, the specialized granular-media filtration process enables the sludge membrane formed on the filter element’s surface to directly perform solid–liquid separation, and this sludge membrane—generated naturally from the suspended particles present in the feed water—effectively resolves the issue of clogging caused by various types of wastewater.
Technical Advantages
1. Power-free water production: By maintaining a liquid level difference of at least 0.5 meters, self-flow filtration can be achieved without any external power, resulting in ultra-low operating costs.
2. No secondary pollution: No offline chemical cleaning is required; the equipment’s filtration units are reusable and have a service life of over 15 years.
3. Optimized selection and elimination technology for biochemical sludge: This technology enables the screening of biochemical sludge, addressing the issue of co-returned good and poor sludge in conventional secondary sedimentation tanks and MBR membrane bioreactors, thereby significantly enhancing biochemical treatment efficiency.
4. Resistance to fouling and clogging (with no restrictions on influent water quality) and energy conservation and carbon reduction: Compared with conventional treatment processes, this technology reduces energy consumption and power cable requirements by 90–95%, cuts chemical dosing by more than 35%, and lowers denitrification carbon source consumption by over 50%.
Process Flow
Comparison between ASSFBR and MBR
Model/Specification
The daily water production capacity of the aforementioned equipment is based on maximum continuous operation over a 24-hour period, with flow rates measured using municipal wastewater from an aerobic treatment tank as the reference. The influent sludge concentration is 45–55%, and the effluent sludge removal efficiency exceeds 99.5%.
1. The ASSEBR-IN-C system is installed inside the tank, and the liquid level in the tank must not fall below 4.5 meters:
2. The ASSFBR-IN-B system is installed inside the tank, and the liquid level in the tank must not be lower than 3.5 meters;
3. The main equipment frame is made of 304 stainless steel;
4. Resistance to fouling and clogging (with no restrictions on influent water quality) and energy conservation and carbon reduction: Compared with conventional treatment processes, this technology reduces energy consumption and power cable requirements by 90–95%, cuts chemical dosing by more than 35%, and lowers denitrification carbon source consumption by over 50%.
Product Display Images
Project Cases
Biochemical Wastewater Treatment Plant Replaces the Secondary Sedimentation Tank
ASSFBR | Patented Product
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- Product Description
-
Product Introduction
Equipment Name: Gravity-Flow Suspended-Particle Media Biological Filtration Reactor (3-Free direct filtration technology)
English Name: Artesian Suspended Solid Filtration Biological Reactor (ASSFBR)
Application scenarios: biochemical backend sludge–water separation (replacing the secondary sedimentation tank and MBR) / denitrification sludge–water separation
The gravity-flow suspended-media biological filtration reactor, also known as the denitrification biological filtration reactor and commonly referred to as the “3-Free” direct-filter unit (Patent No.: ZL2018 20780799.4), is a highly efficient water-treatment device independently developed by our company based on years of practical experience in water treatment. It integrates sludge–water separation and filtration with biological reaction functions into a single unit.
This equipment achieves highly efficient solid–liquid separation of suspensions by passing the suspension through one or more layers of specially designed porous media under a small pressure differential. The liquid passes freely through the porous media, while solid particles are effectively retained on the media surface. When the suspension contains relatively large and high-concentration solid particles, these particles rapidly accumulate on the filter medium surface to form a filter cake, further enhancing the retention effect. Even if some fine particles initially manage to penetrate the media layer, they quickly undergo “bridging” within the pore channels, thereby trapping smaller suspended particles and ensuring that the filtrate is clear.
Meanwhile, the ASSFBR employs a vertical filtration design: the water flow is oriented at a 90° angle to the filter media, and the filter elements are also arranged vertically. The filter cake that forms on the surface of the filter elements is subjected to the combined action of the filtration pressure differential and gravity. When the self-weight of the filter cake exceeds the filtration adsorption force, it can naturally detach, thereby maintaining a stable cake thickness and ensuring continuous, stable filtrate production. In addition, the system supports backwashing from the interior of the filter elements, effectively restoring their long-term filtration performance and extending their service life.
ASSFBR boasts stable operation, high removal efficiency, and easy maintenance, making it particularly well-suited for wastewater treatment with high suspended solids content and for denitrifying biofiltration applications. It is an ideal solution for achieving efficient, energy-saving water treatment.
Process Characteristics
ASSFBR is a highly integrated technology that combines granular-media filtration and biological treatment. It originates from the sludge-membrane filtration that forms on the surface of the filter bed in conventional filtration; however, its unique structural design and gravity-flow operation effectively address the common challenges of conventional filtration, such as easy clogging, difficult cleaning, short service life, and high operating costs. Moreover, the specialized granular-media filtration process enables the sludge membrane formed on the filter element’s surface to directly perform solid–liquid separation, and this sludge membrane—generated naturally from the suspended particles present in the feed water—effectively resolves the issue of clogging caused by various types of wastewater.
Technical Advantages
1. Power-free water production: By maintaining a liquid level difference of at least 0.5 meters, self-flow filtration can be achieved without any external power, resulting in ultra-low operating costs.
2. No secondary pollution: No offline chemical cleaning is required; the equipment’s filtration units are reusable and have a service life of over 15 years.
3. Optimized selection and elimination technology for biochemical sludge: This technology enables the screening of biochemical sludge, addressing the issue of co-returned good and poor sludge in conventional secondary sedimentation tanks and MBR membrane bioreactors, thereby significantly enhancing biochemical treatment efficiency.
4. Resistance to fouling and clogging (with no restrictions on influent water quality) and energy conservation and carbon reduction: Compared with conventional treatment processes, this technology reduces energy consumption and power cable requirements by 90–95%, cuts chemical dosing by more than 35%, and lowers denitrification carbon source consumption by over 50%.
Process Flow
Comparison between ASSFBR and MBR
Model/Specification
The daily water production capacity of the aforementioned equipment is based on maximum continuous operation over a 24-hour period, with flow rates measured using municipal wastewater from an aerobic treatment tank as the reference. The influent sludge concentration is 45–55%, and the effluent sludge removal efficiency exceeds 99.5%.
1. The ASSEBR-IN-C system is installed inside the tank, and the liquid level in the tank must not fall below 4.5 meters:
2. The ASSFBR-IN-B system is installed inside the tank, and the liquid level in the tank must not be lower than 3.5 meters;
3. The main equipment frame is made of 304 stainless steel;
4. Resistance to fouling and clogging (with no restrictions on influent water quality) and energy conservation and carbon reduction: Compared with conventional treatment processes, this technology reduces energy consumption and power cable requirements by 90–95%, cuts chemical dosing by more than 35%, and lowers denitrification carbon source consumption by over 50%.
Product Display Images
Project Cases
Biochemical Wastewater Treatment Plant Replaces the Secondary Sedimentation Tank
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Solving the planet’s environmental challenges with eco-friendly equipment.
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3rd Floor, Building C, Jimi Industrial Park, Xiaojinkou Subdistrict, Huicheng District, Huizhou City
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