The Working Principle of Water Purification Equipment is Surprisingly Simple!
The Working Principle of Water Purification Equipment is Surprisingly Simple! This article will guide you through the secrets of water treatment!
How exactly does a Water Purification System work? You'll understand after reading this article!
Do you know what's in the water you drink every day? Besides water, there are many other substances, some beneficial, such as minerals and trace elements, and some harmful, such as bacteria, heavy metals, pesticides, and residual chlorine. With increasing water pollution, is the water we drink safe?
To ensure the safety and health of our drinking water, many people choose to use water purification equipment to filter out harmful substances and provide purer drinking water. So, how does a water purification system work?
This article will explain in detail the working principle of water purification equipment, allowing you to understand the science and technology of water treatment.
Main Components of a Water Purification System
A water purification system typically consists of the following parts:
Pre-filter: Used to remove large particulate impurities in the water, such as sediment, rust, and suspended solids, protecting subsequent filters from clogging or damage.
Ultrafiltration membrane: Used to remove microorganisms, colloids, and organic matter from water, with a filtration precision of 0.01 microns, capable of intercepting bacteria and viruses.
Reverse osmosis membrane: Used to remove dissolved inorganic matter, heavy metals, pesticides, and residual chlorine from water, with a filtration precision of 0.0001 microns, capable of intercepting calcium and magnesium ions, chlorides, and nitrates.
Post-filter: Used to further improve the taste and hygiene of water. Common types include: Activated carbon: Used to remove odors, pigments, and organic matter from water, increase dissolved oxygen levels, and enhance water activity. Softening resin: Used to remove hardness ions such as calcium and magnesium, prevent scale formation, and protect faucets and kettles. Mineralizing balls: Used to increase minerals and trace elements in water, such as potassium, sodium, calcium, and magnesium, balance the pH value of water, and improve its nutritional value. Ultraviolet lamp: Used to kill residual bacteria and viruses in water, ensuring water safety and extending its shelf life.
Working Principle of Water Purification Equipment
Water purification equipment primarily works by utilizing various physical, chemical, or biological methods to remove harmful substances from water, improving its cleanliness and usability. Below, we'll examine some common filtration principles used in water purification equipment.
Ultrafiltration Membrane Filtration Principle
Ultrafiltration membranes are a purely physical filtration method. They consist of one or more layers of a membrane covered with micropores, typically around 0.01 micrometers in diameter. These micropores allow only water molecules and some small molecules to pass through, while blocking larger molecules such as bacteria, colloids, and organic matter.
The working principle of an ultrafiltration membrane utilizes the difference in water pressure, pushing water from the high-pressure side to the low-pressure side, thereby separating water from impurities. The advantages of ultrafiltration membranes are that they require no electricity, produce no wastewater, and retain minerals and trace elements in the water. However, the disadvantages of ultrafiltration membranes are that they cannot remove heavy metals, chemical pollutants, and scale from the water.
The Filtration Principle of Reverse Osmosis Membranes
Reverse osmosis membranes are a highly efficient filtration method. They consist of one or more semi-permeable membranes. The characteristic of semi-permeable membranes is that they allow only water molecules to pass through, while blocking all other substances, including dissolved inorganic substances, heavy metals, pesticides, residual chlorine, etc. The filtration precision reaches 0.0001 microns, and it can block calcium and magnesium ions, chlorides, nitrates, etc.
The working principle of reverse osmosis membranes is to use a high-pressure pump to push water from a low-concentration side to a high-concentration side, thereby reversing the osmosis phenomenon and separating water from impurities. The advantage of reverse osmosis membranes is that they can remove most pollutants from water, providing the purest drinking water. However, the disadvantages of reverse osmosis membranes are that they require electricity, produce wastewater, and also remove minerals and trace elements from the water.
Water purification equipment is a device that can improve water quality. Its working principle mainly utilizes different physical, chemical, or biological methods to remove harmful substances from water, providing purer drinking water. The main components of water purification equipment include pre-filters, ultrafiltration membranes, reverse osmosis membranes, and post-filters. Each of them has its own advantages and disadvantages, and the appropriate combination needs to be selected according to the water quality and requirements.