Rusty Water? Here's the Solution — Custom 1 TPH Reverse Osmosis Water Purification System with 4-Stage Filtration

Shandong Yufeng Water Treatment Equipment Co., Ltd.
Industrial Water Purification Solutions

A customer recently contacted us with a common concern:

"Our water has a rust-red color, and there are reddish deposits inside the pipes. What kind of water treatment equipment do we need?"

This is one of the most common water quality issues found in industrial and commercial applications. Groundwater, well water, and surface water often contain excessive iron and suspended solids, which can cause equipment corrosion, pipeline blockage, product quality problems, and increased maintenance costs.

Based on the customer's required capacity of 1 ton per hour (1 TPH) and the results of the water quality analysis, the engineering team at Shandong Yufeng Water Treatment Equipment Co., Ltd. designed a customized 1 TPH Reverse Osmosis (RO) Water Treatment System featuring four stages of purification to effectively remove rust, sediment, hardness, and dissolved contaminants.

Why Iron and Rust in Water Should Not Be Ignored

When water contains excessive iron ions (Fe²⁺, Fe³⁺) or iron oxide particles (Fe₂O₃), several problems can occur:

1. Discolored Water

Water becomes red, yellow, or brown, making it unsuitable for food processing, beverage production, pharmaceuticals, electronics manufacturing, and other quality-sensitive industries.

2. Equipment Corrosion and Scaling

Iron deposits accumulate inside boilers, heat exchangers, and pipelines, reducing efficiency and shortening equipment lifespan.

3. Blockage of Precision Equipment

Rust particles can clog nozzles, valves, filters, and other precision components, increasing maintenance costs and downtime.

4. Reduced Boiler Efficiency

Iron contamination combined with water hardness leads to scale formation, reducing heat transfer efficiency and steam quality.

5. Potential Health Concerns

Long-term consumption of water with excessive iron levels may affect drinking water quality and user experience.

According to national drinking water standards, iron concentration should be below 0.3 mg/L, while many groundwater sources contain 5–20 mg/L or more. Effective treatment is therefore essential.

Yufeng 1 TPH Reverse Osmosis Water Treatment Solution

For water containing rust particles, sediment, odors, organic contaminants, and high hardness, Yufeng engineers recommend the following treatment process:

Physical Filtration → Adsorption Purification → Water Softening → RO Membrane Separation

Process Flow

Raw Water Tank

↓

Raw Water Pump

↓

Quartz Sand Filter

↓

Activated Carbon Filter

↓

Water Softener

↓

High-Pressure Pump

↓

RO Membrane System

↓

Pure Water Tank

↓

Point of Use

Stage 1: Quartz Sand Filter

The quartz sand filter serves as the primary pretreatment unit.

Main Functions

• Removes rust particles and iron oxide

• Removes sand and suspended solids

• Removes colloidal particles

• Reduces turbidity

Particles larger than 5 microns can be removed with an efficiency exceeding 95%.

After filtration, water turbidity can be reduced from dozens of NTU to below 1 NTU, providing stable feed water for downstream equipment.

Stage 2: Activated Carbon Filter

Activated carbon provides excellent adsorption performance.

Main Functions

Remove Residual Chlorine

Protects RO membranes from oxidation damage.

Remove Odors and Color

Improves water appearance and taste.

Remove Organic Contaminants

Adsorbs pesticides, organic compounds, and residual chemicals.

Assist Iron Removal

Partially adsorbs dissolved iron ions.

High-quality coconut shell activated carbon offers a surface area of 800–1200 m²/g, significantly improving purification efficiency.

Stage 3: Water Softener

The water softener uses strong acid cation exchange resin.

Working Principle

Calcium and magnesium ions are exchanged with sodium ions through the ion exchange process.

Benefits

• Reduces water hardness

• Prevents scale formation

• Protects RO membranes

• Improves system recovery rate

Hardness can typically be reduced to below 50 mg/L.

The resin can be regenerated with industrial salt, ensuring low operating costs and long service life.

Stage 4: High-Pressure Pump and RO Membrane System

Pretreated water enters a high-pressure pump operating at:

0.8–1.2 MPa

The water is then forced through reverse osmosis membranes with a pore size of only:

0.0001 micron

RO Membrane Performance

Salt Removal

Salt rejection rate ≥97%

Heavy Metal Removal

Effectively removes lead, arsenic, cadmium, and other heavy metals.

Bacteria and Virus Removal

Removal efficiency exceeds 99%.

Organic Contaminant Removal

Removes nitrates, pesticides, and trace contaminants.

Product Water Quality

Conductivity:

5–20 μS/cm

Suitable for industrial pure water applications.

The system is equipped with automatic flushing functions for stable long-term operation.

Main Technical Specifications

Applications

Industrial Process Water

Boiler Feed Water

Food and Beverage Production

Medical and Pharmaceutical Water

Electronics and Semiconductor Manufacturing

Textile and Laundry Industries

Hotels and Commercial Buildings

Agricultural Irrigation

Chemical Laboratories

Automotive Parts Cleaning

Any industrial or commercial application requiring clean, softened, or low-conductivity water can benefit from this RO water treatment system.

Frequently Asked Questions

Q1: Can a Quartz Sand Filter Completely Remove Iron from Well Water?

Quartz sand filters are highly effective at removing oxidized iron particles (Fe³⁺). For dissolved ferrous iron (Fe²⁺), an aeration or oxidation process is recommended before filtration to convert it into removable particles.

Q2: Does the Water Softener Require a Lot of Salt?

No.

For a 1 TPH system, annual salt consumption is typically between 300–600 kg. Operating costs remain very low compared to the overall value of the system.

Q3: How Long Does an RO Membrane Last?

With proper pretreatment and regular maintenance, high-quality RO membranes generally last between 3–5 years.

Membrane lifespan depends on:

• Raw water quality

• Pretreatment effectiveness

• Maintenance practices

Yufeng provides long-term technical support and membrane replacement services.

Q4: Can the System Be Customized?

Absolutely.

Yufeng manufactures customized systems ranging from:

• 250 LPH

• 500 LPH

• 1000 LPH (1 TPH)

• 2000 LPH

• 5000 LPH

• 10 TPH

• 20 TPH

• 50 TPH

Custom configurations are available based on water quality, installation space, production requirements, and budget.

Why Choose Shandong Yufeng Water Treatment Equipment Co., Ltd.?

Free Water Quality Analysis

Professional analysis and customized treatment recommendations.

Customized Engineering Solutions

Every system is designed according to your actual water conditions and production requirements.

Factory Direct Pricing

Manufacturer-direct supply with competitive pricing.

Installation and Commissioning Support

Professional engineers assist with installation, testing, and startup.

Comprehensive After-Sales Service

Long-term supply of filter media, cartridges, RO membranes, and technical support.

Proven Industry Experience

More than 10 years of experience in industrial water treatment system manufacturing and integration.

Contact Us

If your water source suffers from:

✔ High iron content

✔ Rust and sediment contamination

✔ Red or yellow discoloration

✔ Excessive hardness

✔ Water quality that fails to meet production standards

Contact Shandong Yufeng Water Treatment Equipment Co., Ltd. today.

We provide:

Free Water Analysis + Free System Design + Customized Reverse Osmosis Water Treatment Solutions

Shandong Yufeng Water Treatment Equipment Co., Ltd.

Professional Manufacturer of Industrial Water Treatment Equipment

Specializing in Reverse Osmosis Systems, Ultra-Pure Water Systems, Water Softeners, Ultrafiltration Systems, and Wastewater Treatment Solutions.