Industrial Reverse Osmosis Systems:

An industrial water purification system is a device that removes all impurities present in water through the method of reverse osmosis, which is nowadays one of the most popular and cost-effective methods in all industries, including hospitals, factories, power plants, food industries, agricultural water treatment, livestock and poultry water treatment, and so on.

Advantages of using industrial water purification system:

The advantages of using an Industrial RO Plant include reducing maintenance and repair costs, saving water consumption, preserving water resources, and reducing environmental impacts. Additionally, the treated water produced by these devices can be used for various purposes such as irrigation, energy production, industrial purposes, providing drinking water, and even wastewater treatment. Industrial water purification systems are widely used in various industries such as oil and gas, power plants, chemical industries, food production, agriculture, and more, due to their efficiency, wide range of applications, and advanced features they provide.

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The five most important pre-treatment equipment for RO systems:

Sand Filter:

The first stage of industrial water purification system pre-treatment involves the use of a sand filter. The primary function of sand filters is to remove particles up to 50 microns in diameter. The sand filter consists of an FRP or metal tank, a semi-automatic or automatic valve, and silica. The operation of this filter is such that after the water passes through the silica and removes particles up to 50 microns, it is ready for further water purification stages.

Carbon Filter:

Following the sand filter, the carbon filter is the second stage of pre-treatment. The most important function of these filters is to eliminate color, odor, and oxidizing substances resulting from the release of chlorine. They look similar to sand filters, with the difference being the use of activated carbon instead of silica inside the tank.

Water Softener Resin System:

The use of a water softener resin system is recommended only when the water being used has a high hardness level. This system is used to convert hard water into soft water by replacing the calcium and magnesium ions present in the water with sodium ions. It transforms hard water into soft water through this process. Its components include a tank, an automatic or semi-automatic valve, resin, and a salt tank.

Cartridge Filter:

Micro filters or micron filters are used as the final stage of pre-treatment in industrial water purification systems. These filters are essential in industrial water purification systems as they are responsible for removing insoluble salts in water up to half a micron in diameter. This contributes to reducing pressure on the membranes and extending their lifespan.

Chemical Injection:

Chemical injection is required based on the water being consumed, such as injecting anti-scalants for scale control and injecting chlorine to eliminate waterborne bacteria.

Main equipment of industrial water purification system:

Industrial water purification systems using reverse osmosis technology consist of various components. Let's explore them below:

Industrial RO Water Purification Pump:

One of the essential components of an industrial water purification system is the multistage pump. These pumps are responsible for generating driving force for the entire system. They provide the necessary pressure for water to pass through the membranes and other components of the system.

RO Membrane Filter:

The most crucial part of an industrial water purification system is the membrane filter. Membranes are used to purify nearly 98% of the particles dissolved in water. Therefore, membranes are considered the heart of an industrial water purification system. Membranes come in two sizes: 4 inches and 8 inches, and are categorized into seawater (SW) and brackish water (BW) membranes based on the type of inlet water.

Pressure Vessel:

The pressure vessel or membrane housing is responsible for holding the RO membrane filters. Pressure vessels come in 4-inch and 8-inch sizes and can accommodate 1 to 6 membrane elements. They are categorized by working pressure ranges from 300 PSI, 450 PSI, 600 PSI, to 1000 PSI.

Instruments for measuring industrial water purification system:

An important component of any system is the instruments used for measurement. An industrial water purification system also includes measuring instruments to ensure optimal system performance. Let's examine each of them below:

Flow Meter:

A flow meter is an instrument used to measure flow rate over a specific time unit. This flow can be of gas, water, or air. Flow meters are divided into three main categories: panel flow meters, inline flow meters, and George Fisher flow meters.

Control Valve:

Control valves in industrial water purification systems are vital and practical tools responsible for controlling water pressure and flow rate in various parts of the RO system.

TDS Meter:

As we know, water contains a high concentration of salts consisting of positive and negative ions, referred to as Total Dissolved Solids (TDS). A device that measures this parameter is called a TDS meter or conductivity meter. Typically, a TDS meter is used to measure the output TDS of a water treatment system.

Pressure Gauge or Manometer:

A pressure gauge or manometer is a tool used to regulate pressure. In an industrial water purification system, knowing the pressure level is crucial as it can provide useful information on the proper functioning of pumps, filter cleanliness, and overall system operation.

CIP System (Membrane Auto-Washing System):

When salts and impurities present in water are removed by the membranes, they can create a layer on the membrane surface over time, reducing the system's production capacity. To improve system performance, a system must be incorporated to automatically wash the membranes. This system is known as the Clean-in-Place (CIP) system. The frequency of membrane washing depends on the level of deposits, but generally, membranes require cleaning every 6 months to a year.

All about ro industrial water purifier

Types of capacities for industrial reverse osmosis (RO) water purification systems:

In the industry, there are various industrial RO water purification systems with different capacities. These capacities are typically expressed based on the volume of water to be treated, such as liters per day or cubic meters per day. Below are some types of industrial RO water purification systems based on their capacities:

1- Domestic Water Purification System (Less than 1500 liters per day):

These systems are usually used in small businesses or households with lower demand for treated water. Their capacity is typically less than 1500 liters per day.

2- Semi-Industrial Water Purification System (From 1500 liters to 5000 liters per day):

This type of system is suitable for use in medium to large businesses and industries. Their capacity typically ranges from around 1500 to 5000 liters per day.

3- Industrial Water Purification System (More than 5000 liters per day):

These systems are ideal for use in large industries such as factories, industrial and urban facilities, farming, agriculture, hotels, and hospitals. Their capacity is usually more than 5000 liters per day.

In general, determining the capacity of an industrial RO water purification system depends on the type of business, industry, or activity. It is recommended to determine your need for treated water and the exact volume required before purchasing and selecting a system.

Important parameters for designing an industrial water purifier:

When designing an industrial water purification system, certain parameters are necessary and crucial, as outlined below:

1- Flow Rate or Water Consumption Capacity: One important factor for designing an industrial water purification system is the flow rate of water you use during a day. The flow rate determines which capacity of the water purification system is suitable for you.

2- Inlet Water Analysis: The analysis of inlet water or the characteristics of the water provide the designer of the water purifier with all the necessary information regarding the water's properties. For example, if the incoming water contains microbes and bacteria, UV radiation must be used in the system. Therefore, having the water analysis ensures that the designed system aligns perfectly with your inlet water.

3- Inlet Water TDS (Total Dissolved Solids): TDS refers to the total amount of dissolved solids in water. The higher the TDS of the incoming water, the larger the capacity of the purification system needs to be. If the TDS of the inlet water is above 1500, a water purification system must be used.

4- Outlet Water TDS: An industrial water purifier reduces the TDS of the inlet water to zero. If the need arises to bring the TDS below zero, a dual water purification system must be used, commonly known as a double RO system. The water produced from this process is distilled water.

Factors influencing the price of an industrial water purifier:

The price of an industrial RO water purification system is dependent on various factors, which are discussed below:

1- Raw Water Analysis and Quality: The type and quality of the inlet water to the RO system will significantly impact the price. Specialized filters and equipment may be required for treating water with specific characteristics.

2- Required Volume of Purified Water per Day: Depending on the industry's needs for purified water, the system's capacity involving membrane capacity, pump capacity, and tank capacity will directly affect the price.

3- Quality of Purified Water: The quality of the purified water plays a crucial role in determining the system price. If there is a need to remove specific salts such as sodium, hardness, organic matter, etc., special equipment and filters will be necessary, potentially increasing the cost.

4- Brand of Components: Using reputable equipment brands in system construction can guarantee better quality and performance but may increase the price.

5- Material of Piping and System Chassis: Utilizing high-quality materials for piping and system chassis not only enhances the system's lifespan but also impacts the final price.

6- Type of Electrical Panel: Using industrial electrical panels or PLCs with special features and conditions may increase the system price due to added complexity and enhanced capabilities.

-- Abdul Alim - 2024-03-11

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