5Overview of Ton Reverse Osmosis Project

1. This process plan is compiled based on the actual requirements of the user, ensuring reliable system operation and economic rationality. It adopts relevant design standards and norms, combines our company's many years of practical assembly engineering experience, and uses groundwater as the raw water source.   

       This system adopts "pretreatment.+The water treatment process of "single-stage reverse osmosis" is reasonably designed, operates stably, and the quality of the produced water meets the customer's usage requirements. It has been applied in many of our on-site user projects.

        This device is easy to install and convenient. Easy to operate and maintain. It features stable operation, energy conservation, environmental protection, high degree of automation, and economic practicality.

Ii. Design Basis

1,Reverse osmosis systemDesign software;

2Raw water quality: The raw water quality meets the water quality standards for domestic drinking water;

3User requirement: Water production volume ≥ 5m3/h(25℃) The effluent quality meets the water quality standards for direct drinking water.

4The design and manufacture of control equipment, measuring instruments and electrical equipment comply with relevant regulations and standards.

Iii. Process Description

1Pretreatment: It involves the preliminary treatment of raw water to ensure the water quality meets the requirements, reduce and delay membrane fouling, and extend its service life. The main targets of its treatment are microorganisms, colloids, organic matter, heavy metal ions, solid particles, and free chlorine in the feed water. To meet the feed water requirements of the reverse osmosis device and ensure its long-term stable operation.

It consists of a sand filter, a carbon filter, a water softener and a security filter.

Sand filter: It filters out sediment, impurities, suspended solids in water and reduces the quality of raw waterSDI(Pollution index density)Value.

Carbon filter: It has a dual function. One is adsorption;The second is filtration. Filter out chemical organic matter, heavy metals, color, odor, residual chlorine and other substances in tap water, and improve the taste.

Security filter5MicronPPFFilter element, interception greater than5Micrometer-sized objects extend the lifespan of the film.

2Reverse osmosis device: The separation pore size of the membrane is10-6cm-10-7cmIt can remove organic matter from water(Such as trihalomethane intermediates, colloids, suspensions, microorganisms, algae, molds, etc)Substances such as heat sources and viruses are removed. The water that has undergone the first three stages of pretreatment is then subjected to reverse osmosisROAfter deep separation treatment by the membrane host, water beneficial to human health passes through and water detrimental to human health is discharged, achieving a high desalination rate98%The produced pure water enters the pure water tank;(Depending on the specific circumstances, membrane filtration is divided into single-stage or two-stage reverse osmosis treatment. This water treatment system is a single-stage reverse osmosis. A well-designed system can ensure that the entire system operates3There is no need to replace the membrane element within the year(The service life is related to the quality of the water source);The online conductivity display instrument can dynamically show the water quality status of water purification production at any time. High-pressure pump, providing the working pressure for membrane permeation water. Maintain water production rate. This water treatment system is a first-stage reverse osmosis system.

3Control function description: This system changes the corresponding output signals of the inlet valve, high-pressure pump, flushing valve and other actuating elements according to the changes of input signals such as high pressure, low pressure, liquid level, reset and switch, to achieve automatic control of a standardROThe system realizes pressure protection, liquid level control and startup/Full of water/Functions such as automatic flushing.

Iv. Equipment Technical Specifications

1Raw water tank: It stores raw water and plays a role in alleviating subsequent water consumption(It is recommended that users prepare this item by themselves).

2Raw water booster pump: It provides flow and pressure for the normal operation of the pretreatment system.

Technical parameters 

Quantity1Taiwan

Traffic10m3/h

Head30m

Power2.2KW

Material304Stainless steel

3Quartz sand filter

The interior is filled with carefully selected acid-washed quartz sand. When water passes through the filter layer, some solid suspended substances in the water enter the upper layer of the filter material to form small holes, and are intercepted by the surface layer of the filter material due to mechanical retention. Meanwhile, these retained suspended solids overlap and bridge with each other, as if forming a thin film on the surface of the filter layer, continuing to filter out suspended substances in the water. The filter can be regenerated through regular backwashing, and the operation of the filter is smooth-Backwash - forward wash-The operation and other processes are accomplished by opening and closing the relevant valves.

The selection is as follows: Water treatment capacity:10m3/h

Filter tankФ750×H1950mm

Material: Fiberglass reinforced plastic

Filter material: Fine acid-washed quartz sand A small amount of activated carbon

Attachments: Ball valves, upper and lower water distributors, etc

4Activated carbon filter

The activated carbon filter is filled with activated carbon,Using coarse quartz sand as a support layer can adsorb residual chlorine and suspended colloids in water, some organic matter, remove microorganisms, heavy metals and odors. The filter can be regenerated through regular backwashing.

5Security filter

The raw water may contain more than the filter media lost from the previous treatment or that was not filtered out by the sand filter5μmTo remove such pollutant particles, this system is designed with a security fine filter.

Quantity1"Tai"

Model7core40"     Design output 10m3/h,

Filter elementMaterialPPF Meltblown resin fiber,

Filter element pore size5μm      Filter element size40″

Number of filter elements7the

6,ROReverse osmosis device

      The raw water after being treated by the pretreatment unit is further filtered through the fine filter to remove more than5μmThe particles then enter the high-pressure pump. After being pressurized by the high-pressure pump, they enter the reverse osmosis membrane moduleROThe selective permeability of the membrane allows water to pass through under high pressureROThe membrane enters the fresh water side, while various salts are flushed out with the high-pressure water flow, dividing the water into two parts, thus achieving the purpose of separating salt from water.

Model5T/HSingle-stage reverse osmosis unit

Quantity1Set

Water production capacity5m3/h

Desalination rate≥96%

Water utilization rate50%,

6.1,ROReverse osmosis membrane

Reverse osmosis membraneAdopt imported8040Polyamide composite membrane, desalination rate of a single membrane99%That's all. This reverse osmosis system adopts5Each pressure vessel is filled with1Branchial membrane, shared5Mycosis.

Quantity5Zhi

Model8040

Single tube recovery rate15% ,

MaterialTFC Aromatic polyamide

6.2, Membrane shellLoadingROMembrane. Stainless steel pressure vessels are adopted, with one shell and one core, in total5"Zhi.

6.3High-pressure pump Provide sufficient feed water pressure for the reverse osmosis membrane group to maintain the normal operation of the reverse osmosis membrane. The reverse osmosis inlet of this system is equipped with1A stainless steel vertical multistage high-pressure pump.

6.4Conductivity meter

It can realize the online display of water quality conductivity. Provide effective data for system debugging, operation and maintenance.

Quantity1only

ModelCCT-3320

6.5Flowmeter: The system monitors the produced water through a flow indicator/The flow rate of concentrated water provides a reference basis for adjusting the normal operation of the system. This component selects domestic pipeline flowmeters and their matching parts.

6.6Pressure gauges: Pressure gauges are installed in this unit and placed at various locations before and after the security, at the inlet of the membrane module, between sections, and at the outlet of the membrane module. They are respectively used to monitor the feed water pressure, inter-section pressure, pure water pressure, and concentrated water pressure of the membrane module, providing information for adjusting the normal operation of the reverse osmosis system and equipment debugging.

6.7Inlet solenoid valve: This valve is inROOn the inlet pipe of the main unit, when the system is turned on, the high-pressure pump of the system starts first. When the main unit stops running, the water inlet solenoid valve will automatically close.

6.8Flush solenoid valve: This valve is connected in parallel with the system pressure regulating valveROOn the concentrated water pipeline of the main unit, when the system is turned on, the high-pressure pump of the system starts first, which can perform low-pressure flushing on the reverse osmosis membrane. When the speed of the booster pump reaches the rated value, the solenoid valve closes slowly, allowing the action to occurROThe water pressure on the membrane rises slowly, ensuringROThe membrane is not damaged by sudden pressure changes.

6.9Pressure protection device

The function of the pressure protection device is to send a signal to the high-pressure pump when the water pressure of the reverse osmosis system supply is lower than the set value, causing the system to shut down. When the pressure returns to the set value, a start signal is sent out and the system automatically starts up and operates.

6.10Pipes, pipe fittings, pipe valves.

6.11 Rack

Quantity1OnlySS304Stainless steel material

Size: Determined based on the on-site site conditions

8Pure water tank: Used for storing pure water.