Mechanical Filtration,activity Carbon Filter Belt One Stage Reverse Osmosis Precision Filter Water Treatment System

Short Description:

Equipment brand:WZHDN-Wenzhou Haideneng

Equipment company:Wenzhou Heideneng Environmental Protection Equipment&Technology Co., Ltd

Product Detail

Product Tags

Mechanical Filtration + Activated Carbon Filter + Belt Water Tank + One-stage Reverse Osmosis + Precision Filter Water Treatment System

This is a compact, cost-efficient pure water purification system tailored for small-to-medium scale water demand scenarios (e.g., commercial drinking water, light industrial process water). It integrates multi-stage pretreatment, core RO purification, buffer storage, and polishing filtration to produce stable, high-quality pure water with low investment and operation costs, suitable for non-hazardous environments.

Core System Components & Functions

Component	Core Function	Key Design Features
Mechanical Filter (Quartz Sand Filter)	First-stage pretreatment: Remove suspended solids, sediment, rust, and colloidal particles ≥20μm from raw water; reduce turbidity to ≤1 NTU and SDI value to <5.	- Media: Graded quartz sand (particle size 0.5–1.2mm) for layered filtration. - Control mode: Automatic backwashing triggered by pressure difference (ΔP≥0.2MPa) or 24-hour timing; backwash duration 10–15min. - Material: FRP or 304 stainless steel (corrosion-resistant, lightweight).
Activated Carbon Filter	Second-stage pretreatment: Adsorb residual chlorine (≤0.1mg/L), organic matter, odor, and pigments; prevent RO membrane oxidation and biofouling.	- Media: Granular activated carbon (GAC, iodine value ≥1000mg/g) with high adsorption capacity. - Operation: Synchronous backwashing with mechanical filter; TOC removal rate ≥60%. - Safety design: Pressure relief valve to avoid overpressure damage.
One-stage Reverse Osmosis (RO) Unit	Core purification module: Remove 95–99% of dissolved salts, heavy metals, bacteria, and viruses; produce pure water with conductivity ≤1.3μS/cm (25℃).	- Membrane: Low-pressure polyamide composite membrane (e.g., BW30-4040) for tap water/groundwater treatment. - Operating parameters: Working pressure 1.0–1.5MPa; recovery rate 55–70%. - Automatic protection: Overpressure shutdown, high-conductivity drain, low-flow alarm; PLC control for intelligent operation.
Belt Water Tank	Buffer storage: Balance RO production capacity and water consumption demand; stabilize water supply pressure and avoid frequent start-stop of RO unit.	- Structure: Belt-type floating ball control (auto fill/stop); food-grade HDPE or 304 stainless steel material. - Capacity: Customizable (e.g., 500L–5000L) based on water demand; equipped with overflow and drain ports. - Advantage: Compact footprint, easy installation, low maintenance.
Precision Filter	Final polishing filtration: Remove fine particles ≥1μm from RO product water; eliminate secondary contamination and protect downstream water-using equipment.	- Filter element: PP melt-blown pleated filter (high filtration precision, low pressure loss). - Replacement trigger: Pressure difference ≥0.15MPa or 1–3 months of operation. - Design: Quick-opening clamp for easy element replacement.
Supporting Auxiliaries	Ensure continuous system operation	- 5μm cartridge filter (installed before RO): Prevent fine particles from puncturing RO membrane. - Booster pump & high-pressure pump: Provide stable pressure for pretreatment and RO operation. - Control cabinet: Integrate touch screen, PLC, and electrical components for one-key start-stop.

System Workflow

Pretreatment Stage

Raw water (tap water/groundwater) is pressurized by the booster pump and enters the mechanical filter to remove large suspended particles. Then it flows into the activated carbon filter to adsorb residual chlorine and organic matter. The effluent meets RO inlet requirements: SDI < 5, residual chlorine < 0.1mg/L, turbidity ≤ 0.5 NTU.
RO Purification Stage

Pretreated water passes through the 5μm cartridge filter and is pressurized to working pressure by the high-pressure pump, then enters the RO membrane module. Water molecules permeate the semi-permeable membrane to become pure water, while concentrated water (containing impurities) is discharged. The PLC system monitors conductivity in real time; if the value exceeds the set standard, the water is automatically drained until qualified.
Storage & Polishing Stage

Qualified RO pure water is first stored in the belt water tank (the floating ball valve controls RO start/stop to maintain stable liquid level). When water is needed, the stored water is pumped into the precision filter to remove fine particles, and finally delivered to the water point with stable, high-quality pure water.

Key Advantages & Application Scenarios

1. Core Advantages

High Cost Performance: Balances purification efficiency and investment; lower initial cost than two-stage RO systems, suitable for users with general pure water requirements.
Stable Water Supply: Belt water tank buffers the gap between RO production and water use, avoiding pressure fluctuations and frequent RO start-stop (extending equipment life).
Fully Automatic Operation: One-key start, auto backwashing, auto drain, and fault alarm; no professional operator required, reducing labor costs.
Compact & Flexible: Small footprint, easy to install in limited spaces (e.g., basement, equipment room); customizable capacity according to demand.

2. Typical Application Scenarios

Commercial Drinking Water: Pure water supply for shopping malls, office buildings, hotels, schools, and residential communities; meets direct drinking standards after disinfection.
Light Industry Production: Process water for food and beverage brewing, cosmetics manufacturing, printing and dyeing, and small-scale electroplating.
Auxiliary Industrial Water: Cooling water for machine tools, cleaning water for electronic components, and feed water for low-pressure boilers.
Medical & Laboratory: Pure water preparation for small clinics, research labs, and medical instrument cleaning (non-injection grade).

Operation & Maintenance Notes

Pretreatment Maintenance
- Set automatic backwashing for mechanical and activated carbon filters once every 24 hours; manually backwash immediately if pressure difference rises sharply (≥0.25MPa).
- Replace activated carbon every 6–12 months (or when effluent residual chlorine exceeds 0.1mg/L); replace quartz sand every 2–3 years.
RO System Maintenance
- Replace the 5μm cartridge filter element every 1–2 months to prevent membrane clogging.
- Clean the RO membrane with acid (citric acid) and alkali (sodium hydroxide) cleaning agents every 3–6 months; replace the membrane every 2–3 years if desalination rate drops below 90%.
- Check the high-pressure pump monthly; lubricate bearings with 32# anti-wear hydraulic oil to ensure stable operation.
Water Tank & Precision Filter Maintenance
- Clean the belt water tank every 1–2 months: Drain all water, scrub the inner wall, and disinfect with 50ppm chlorine dioxide solution to prevent microbial growth.
- Replace the precision filter element every 1–3 months (based on pressure difference and water consumption); check the quick-opening clamp seal to avoid water leakage.