A mechanical filtration system for circulating water reuse is an industrial-grade solid-liquid separation device engineered to remove suspended solids, sediments, and colloidal particles from recirculated process water. With a treatment capacity of 200 cubic meters per hour, this system acts as the frontline defense for downstream membrane equipment — including ultrafiltration (UF) and reverse osmosis (RO) — ensuring stable water quality, extended membrane life, and reduced chemical cleaning costs.
Industries worldwide face mounting pressure to reduce freshwater consumption and meet stringent wastewater discharge regulations. This corrosion-resistant mechanical water filter directly addresses both challenges: it recovers and polishes process water for reuse, cutting intake costs and environmental footprint simultaneously.
Raw water enters the pressurized vessel and flows through a three-layer media bed composed of quartz sand, anthracite, and gravel — each layer calibrated for a specific particle size range:
- Top layer (anthracite): Captures larger flocs and coarse suspended solids, protecting finer layers below.
- Middle layer (quartz sand): Traps medium-to-fine particles through depth filtration, maximizing dirt-holding capacity.
- Bottom layer (gravel): Provides uniform water distribution and prevents media loss into the underdrain system.
When the differential pressure between inlet and outlet reaches a preset threshold (typically 0.05–0.1 MPa), the automatic backwash cycle initiates. Clean water reverses direction — optionally combined with compressed air scouring — to dislodge trapped contaminants from the media bed. The entire cycle completes in 10–15 minutes without operator intervention, restoring full filtration efficiency.
- 200 m³/h High Throughput: Sized for large-scale industrial operations — power plants, steel mills, chemical processing facilities, and municipal water reuse plants.
- Corrosion-Resistant Construction: Available in carbon steel with food-grade epoxy lining, SS304/SS316L stainless steel, or FRP (fiberglass-reinforced plastic) — select based on your water chemistry and budget.
- Automatic Backwash with PLC Control: Differential pressure sensors trigger backwash only when necessary, optimizing water and energy use. Optional PLC integration enables remote monitoring, data logging, and integration with plant-wide SCADA systems.
- Multi-Media Depth Filtration: Unlike single-media sand filters, the layered design extends filter run time by 30–50%, reduces backwash frequency, and delivers consistent effluent quality even under fluctuating inlet conditions.
- Compact Vertical Footprint: The cylindrical vertical design occupies minimal floor area — ideal for both greenfield projects and brownfield retrofits where space constraints are tight.
- Continuous Operation Capable: Multi-unit parallel configurations with duty-standby sequencing ensure uninterrupted filtration, even during individual vessel backwash — essential for 24/7 industrial processes.
| Parameter | Specification |
|---|---|
| Processing Capacity | 200 m³/h |
| Filtration Media | Quartz sand, anthracite, gravel (multi-layer) |
| Vessel Material Options | Carbon steel (epoxy-lined) / SS304 / SS316L / FRP |
| Filtration Accuracy | ≤ 5–10 µm (media-grade dependent) |
| Inlet Turbidity (Typical) | ≤ 20 NTU (higher on custom request) |
| Outlet Turbidity | ≤ 3 NTU |
| Backwash Trigger | Automatic (differential pressure) or timed |
| Control Options | Manual valve / Automatic valve / PLC with HMI |
| Design Pressure (Standard) | 0.6 MPa (higher ratings available) |
| Operating Temperature Range | 5–50 °C |
- Industrial Circulating Cooling Water: Removes suspended solids, scale fragments, and biological debris from cooling tower loops, protecting heat exchangers and condensers in power generation, petrochemical, and steelmaking facilities.
- UF/RO Membrane Pretreatment: Reduces membrane fouling potential by 60–80%, significantly extending RO membrane lifespan and lowering CIP (clean-in-place) frequency and chemical costs.
- Reclaimed Water & Municipal Reuse: Provides reliable tertiary treatment for water reclamation projects, helping municipalities and industrial parks achieve water neutrality targets.
- Metallurgical & Mining Process Water: Handles high-solids loads from ore washing, dust suppression, and slurry dewatering, recovering clean water for recirculation.
- General Industrial Wastewater Polishing: Achieves discharge compliance standards and produces reusable process water for non-potable applications.
Filter run time depends on inlet water quality but typically ranges from 12 to 48 hours. The automatic differential pressure system intelligently triggers backwash only when needed — not on a fixed schedule — maximizing water efficiency.
Yes. The multi-media depth filtration design provides robust performance across fluctuating inlet turbidity levels. For applications with highly variable feed water, we offer an optional pre-sedimentation stage and real-time turbidity monitoring with adaptive backwash logic.
Routine maintenance is minimal: periodic inspection of media bed depth (every 6–12 months), valve actuator checks, and PLC firmware updates. Media replacement is typically required only every 3–5 years, depending on usage intensity and inlet water chemistry.
Absolutely. We provide comprehensive global support including on-site commissioning, operator training programs, preventive maintenance contracts, and rapid spare parts delivery. Remote diagnostic support is available for PLC-equipped systems.
