Two stage reverse osmosis plant purified water machine

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Product Detail

Product Tags

NO. Description Data
1 Salt rejection rate 98.5%
2 Working pressure 0.6-2.0Mpa
3 Voltage 200v/50Hz,380V/50Hz etc. customized
4 Material Ss,CPVC,FRP,PVC
Raw water (sea water) TDS <35000PPM
Temperature 15℃-45℃
Recovery Rate 55℃
6 Water-out conductivity(us/cm) 3-8
7 Reverse Osmosis (RO) membrane 8040/4040
8 Inlet Water SDI <5
9 Inlet Water PH 3-10

Product characteristic

Item Capacity(T/H) Power(KW) Recovery(%) One stage water conductivity(μs/cm) Two Stage water conductivity (μs/cm) EDI Water conductivity (μs/cm) Raw water conductivity (μs/cm)
HDN-500 0.5 0.85 55-75 <10 <5 <0.5 <300
HDN-1000 1.0 2.0 55-75 <10 <5 <0.5 <300
HDN-2000 2.0 2.2 55-75 <10 <5 <0.5 <300
HDN-3000 3.0 3.0 55-75 <10 <5 <0.5 <300
HDN-5000 5.0 5.0 55-75 <10 <5 <0.5 <300
HDN-6000 6.0 6.0 55-75 <10 <5 <0.5 <300
HDN-10000 10.0 10.0 55-75 <10 <5 <0.5 <300
HDN-20000 20.0 20.0 55-75 <10 <5 <0.5 <300
Components and functions
NO. Name Application
1 Raw water Tank Store water,buffering pressure,overcome instability of supplying water by pipe,Ensure to supply water stable and continuously for whole system,normally customer provided
2 Raw water Pump Provide needed pressure for every pretreatment filter
3 Mechanical filter We use fiber glass or stainless steel vessel as housing, fill quartz sand,it can filter big particles impurities, Suspended substances, colloids etc.

Activated carbon filter

We use fiber glass or stainless steel vessel as Housing, fill activated carbon, remove color, odor, residual chlorine and organics substances.
5 Water softener Adopt cation resin to soften water, cation resin will absorb Ca2+, Mg2+(Main elements for composing scale)
6 Security filter or pp filter Prevent large particles, bacteria,viruses into RO membrane, Accuracy is 5 μs
7 High Pressure Pump adopt two stage high pressure pump. Provide needed working pressure for RO system,High pressure pump ensure production capacity of pure water.(CNP pump or custom other brand)
8 Reverse osmosis System Adopt two stage reverse osmosis system.Can remove particlescolloids,organicRO(reverse osmosis)system impurities,heavy metal ions,bacteria,virus,heat source etc.harmful substances and 99% dissolved salts.(RO membranes USA Film tec); Output water conductivity≤2us/cm.


Characteristics of Water Purification Equipment:

1. The entire system is configured with stainless steel, which runs stable and has a refined and beautiful appearance.

2. Equipped with a raw water tank and an intermediate water tank to prevent the impact of unstable tap water pressure on the equipment.

3. Equipped with a dedicated purified water tank with a digital electronic level gauge, rotating spray cleaning, and empty ventilation device.

4. Adopting imported Dow Chemical reverse osmosis membrane BW ultra-low pressure membrane, with high desalination rate, stable operation, and 20% energy consumption reduction.

5. Equipped with a pH adjustment and online detection system to regulate the pH value and prevent the influence of CO2 on the water quality of the produced water.

6. Equipped with ozone and ultraviolet sterilization systems and terminal microfiltration devices.

7. The control system adopts a fully automatic method, with main components using imported components, high stability, and easy and convenient operation.

8. Equipped with a purified water delivery and supply system.

9. All key materials use internationally renowned brands in the industry to ensure quality and are designed with the best configuration.

WZHDN Purified Water Equipment Process Flow:

Raw Water → Raw Water Tank → Raw Water Pump → Multi-Media Filter → Activated Carbon Filter → Water Softener → Safety Filter → First-Level RO System → First-Level RO Water Tank (with pH adjustment device) → Second-Level RO System → Second-Level Purified Water Tank → Purified Water Pump (with ozone sterilization system) → Ultraviolet Sterilization → 0.22μm Microfiltration → Purified Water Use Point


Difference of Two-stage reverse osmosis and one-stage reverse osmosis systems

Two-stage reverse osmosis and one-stage reverse osmosis are two different levels of water treatment systems used to deal with different water quality problems.

One-stage reverse osmosis (RO) systems are a common water treatment technology used to remove dissolved ions and most suspended solids from water, including dissolved salts and organic matter. The RO system uses pressure to push water through the semipermeable membrane, allowing water molecules to pass through the membrane pores, while solutes and micromolecules are retained on the membrane surface. This technology is widely used in drinking water purification, seawater desalination, water softening, industrial process water treatment, etc.

The two-stage reverse osmosis (two-stage RO) system further removes trace amounts of solutes and residual salts based on the primary RO system. The purpose of a two-stage RO system is to make the water almost completely pure through further pressure and more efficient membrane filtration, allowing it to be used in more sensitive applications such as electronics manufacturing, pharmaceutical production, etc. Secondary RO systems are usually used in situations where extremely high water quality is required.

All in all, the primary reverse osmosis system is mainly used to remove most dissolved ions and suspended solids, while the secondary reverse osmosis system further purifies the water quality and removes trace solutes and residual salts. The choice of system should depend on specific water quality requirements and treatment goals.

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