Wastewater treatment involves multi-stage purification to remove suspended solids, sludge flocs and particulate contaminants before water discharge or reuse. The high flow filter for wastewater treatment is a robust industrial water filter assembly built around high flow filter cartridge, and it is often arranged after a self-cleaning filter to form a graded filtration loop. It is widely used for tertiary filtration of biochemical effluent, removal of activated sludge fragments, flocs and fine particles, protecting downstream membrane systems, reducing SS of outlet water and lowering the load of subsequent reuse processes. This article covers its working principle, structural design, technical specifications, core competitive advantages, typical application scenarios and practical selection guidance, helping overseas wastewater treatment plant, EPC and factory buyers evaluate this filtration solution for wastewater reuse and discharge standards.
Product Introduction
The high flow filter cartridge system for industrial wastewater treatment is a heavy-duty industrial water filter specially developed for tertiary filtration and advanced treatment of wastewater. It adopts large-diameter pleated high flow filter cartridge as the core filter element, and is usually matched with upstream self-cleaning filter to realize two-stage graded filtration. The self-cleaning filter intercepts large sludge, fibers and coarse debris through automatic backwashing, avoiding the large sludge particles directly hitting and blocking the high flow filter cartridge in a short time. Biochemical effluent of wastewater contains residual activated sludge, biological flocs, fine inorganic sediment, colloids and suspended particles. If these impurities enter the membrane reuse system, they will cause rapid fouling of UF or RO membranes, increase chemical cleaning frequency and shorten the service life of membrane elements. Our high flow filter cartridge adopts gradient pleated filter media, with large effective filtration area, high dirt holding capacity and low pressure drop. Compared with traditional small-size filter cartridges, fewer cartridges are required under the same wastewater flow rate, which reduces the size of the filter housing, reduces sealing points and greatly shortens the time of cartridge replacement and maintenance. It is widely applied in municipal sewage plants, chemical wastewater stations, printing and dyeing wastewater, electroplating wastewater, food processing wastewater and other wastewater reuse projects, used for advanced filtration before wastewater recycling, zero-discharge process and standard discharge.
Working Principle
The wastewater filtration process follows the outside-in radial flow mode. Treated wastewater after biochemical tank enters the stainless steel filter housing evenly and flows around the outer surface of each high flow filter cartridge. The gradient pleated filter media captures large flocs and coarse particles on the outer pleats, while tiny colloids and fine suspended solids are trapped in the inner dense filter layers. The purified wastewater flows through the inner support core and converges into the central outlet pipeline and flows to the subsequent reuse process.
The complete wastewater filtration system adopts cascade protection: the upstream self-cleaning filter completes coarse filtration, automatically backwashes at set pressure difference or time, and discharges intercepted large sludge without replacing consumables. The downstream high flow filter performs fine polishing filtration to capture fine particles that pass through the self-cleaning filter.
As contaminants accumulate on the filter media, the inlet and outlet pressure difference gradually rises. When the differential pressure reaches the preset threshold, the high flow filter cartridges need to be replaced. The differential pressure gauge installed on the housing monitors the clogging status in real time, which helps the operation team arrange maintenance plans in advance and avoid emergency shutdown of the wastewater system.
The flow channel inside the housing is optimized to reduce dead zones and sludge deposition, adapt to the characteristics of wastewater with high solid content, and ensure that each filter cartridge can exert stable filtration performance.
Main Structure
Stainless Steel Filter Housing:
SS304 / SS316L pressure vessel, quick-opening cover for fast cartridge replacement, anti-corrosion treatment for wastewater with corrosive ions.
High Flow Filter Cartridge:
Large diameter pleated cartridge, PP / glass fiber media optional, gradient pore structure, high dirt holding capacity.
Tube Sheet and Cartridge Holder:
Precision sealing seat to prevent wastewater bypass and unfiltered liquid entering downstream.
Differential Pressure Monitoring Unit:
Pressure gauges or differential pressure transmitters to track cartridge clogging.
Flange Inlet & Outlet Ports:
Standard flange connection, compatible with wastewater pipeline specifications.
Bottom Drain and Exhaust Valve:
Drain accumulated sludge at the bottom and exhaust air during startup.
Pre-stage Self-cleaning Filter:
Upstream coarse filtration equipment, automatic backwash, no frequent consumable replacement.
Core Advantages
Large Flow, Low Pressure Drop:
Single cartridge can handle large wastewater flow, fewer filter elements, compact equipment footprint, low energy consumption for wastewater lifting pumps.
Effective Protection for Membrane Systems:
Effectively intercept sludge flocs and fine particles, reduce UF/RO membrane fouling, cut chemical cleaning frequency and extend membrane service life.
High Dirt Holding Capacity:
Gradient pleated structure, longer service cycle, reduce the frequency of cartridge replacement in wastewater systems.
Anti-corrosion & Durable:
Multiple housing and filter material options, adapt to printing and dyeing, electroplating, chemical wastewater with acid, alkali and salt ions.
Low Maintenance Workload:
Fewer cartridges compared with conventional small filter elements; quick-opening housing supports fast replacement.
Stable Outlet Water Quality:
Consistent filtration accuracy, stable SS index of effluent, help the wastewater system meet discharge and reuse standards.
Cascade Matching with Self-cleaning Filter:
The two-stage filtration mode greatly reduces the impact of large sludge on the fine filter cartridge and reduces operating cost.
Wide Application Flexibility:
Suitable for biochemical effluent tertiary filtration, wastewater reuse, zero-discharge pre-treatment and rainwater recycling.
Technical Specification Table
| Item | Parameter |
|---|---|
| Housing Material | SS304 / SS316L Stainless Steel |
| Filter Element | High flow pleated filter cartridge |
| Filtration Precision | 5μm, 10μm, 20μm |
| Cartridge Length | 20", 40", 60" |
| Max Working Pressure | 1.0 MPa |
| Max Working Temperature | 60℃ (PP media); 120℃ (glass fiber media) |
| Single Cartridge Flow (40 inch) | 30~50 m³/h |
| Sealing Material | EPDM, Silicone |
| Design Flow of Complete Unit | 20 ~ 1200 m³/h |
| Matched Pre-filter | Self-cleaning filter for coarse filtration |
Application Scenarios
Municipal Wastewater Treatment Plants:
Tertiary filtration of biochemical effluent, advanced treatment for water reuse.
Printing and Dyeing Wastewater Projects:
Remove dye flocs and suspended solids before wastewater reuse.
Electroplating Wastewater Treatment:
Pre-filtration before nickel recycling and chromium recovery systems.
Chemical Factory Wastewater Station:
Fine filtration for biochemical effluent, protect zero-discharge membrane system.
Food & Beverage Wastewater:
Filter residual organic flocs and suspended solids for wastewater recycling.
Industrial Park Wastewater Centralized Treatment:
Multi-set high flow filter housings combined with self-cleaning filter for large-scale advanced treatment.
Buying & Selection Guide
When selecting a high flow filter for wastewater treatment, buyers need to confirm design flow rate, working pressure, water temperature, wastewater pH, inlet SS value, required filtration accuracy and pipeline standard. If the wastewater contains a lot of sludge and fiber impurities, it is strongly recommended to install a self-cleaning filter upstream as the first stage to intercept large sludge and protect the high flow filter cartridge. For wastewater with corrosive components, SS316L housing and anti-corrosion filter media are recommended. For normal biochemical effluent, PP high flow cartridges are cost-effective. For large-scale wastewater treatment projects, multi-cartridge parallel housings can be customized; for small factory wastewater stations, compact single-group models are available. We can provide drawings and technical data for EPC bidding.
FAQ
Q1: Why choose high flow filter cartridge instead of string wound cartridges for wastewater tertiary filtration?
A: High flow filter cartridge has a much larger filtration area. It can handle large wastewater flow with fewer elements, reduce maintenance time and adapt to the continuous operation requirements of wastewater plants.
Q2: What is the typical filtration accuracy for wastewater tertiary filtration?
A: 10μm is the most commonly used specification. 5μm is selected for high-standard reuse requirements such as ultrafiltration pre-treatment.
Q3: What is the function of the matched self-cleaning filter?
A: The self-cleaning filter removes large sludge, fibers and coarse sediment automatically by backwashing. It reduces the pollutant load of downstream high flow filter cartridge and prolongs its service life.
Q4: Can this filter work continuously 24 hours in wastewater systems?
A: Yes. The pressure vessel housing is designed for continuous operation. Cartridge replacement is only required when differential pressure rises to the set value, and the replacement operation is fast.
Q5: Can this filter replace the sedimentation tank?
A: No. It is used for advanced tertiary filtration after biochemical and sedimentation processes. It cannot replace the sedimentation tank for large-quantity sludge separation.
Related Products
Equivalent ALN01-60B High Flow Cartridge for Ultrafiltration
RTM41HF050E High Flow Filter Element
MFNP050‑40N‑ITT Cartridge Filters
Parker RCP100‑20EPP for Industrial Ultrafiltration Pretreatment
Get a FREE Quote
RELATED PRODUCTS
Leave a message
If you want to get more details about filter and filtration equipment, you can send E-mail to filter01@lefilter.com. You can consult our professional engineer and specialized sales team with leave a message in below form. We will contact with you ASAP. You also can visit our factory in Henan China.