Feed water treatment, water filtration system

What is water treatment technology?

Simply put, water treatment technology is the application of treatment processes with many different levels and stages for the purpose of removing dirt and harmful substances. Thereby, contributing to improving the quality of water sources, making the water safer to use for daily life and production.

Role

The main roles and purposes of surface water treatment technology include:

Remove heavy metals, metals with high valence existing in the water, typically: Iron, manganese ... (source of river bottom water, lake)

Balance mineral content in water, bring metal cations such as calcium, magnesium to allowable levels (depending on soil quality and rainfall). Thereby, reducing the hardness of the water.

Eliminate microorganisms existing in the water to ensure that the water source becomes safe for human health.

Filters out impurities and impurities that are mixed in the water, making the water fresher.

Removes organic contaminants in water.

Outstanding Features

The technological diagram of water treatment from surface water has the following outstanding features:

Smart system, modern, easy to use and maintain.

Components are imported from advanced countries in the world, so the operating capacity is high and stable.

Water treatment technology is suitable even for facilities that need to use large water sources.

Why is it necessary to treat surface water?

Surface water is a natural water source on the ground including: Water from ponds, rivers, lakes, canals, streams... This water source is often affected by natural and man-made factors. At the same time, this is also a source of water that people use a lot, so it is easy to be polluted. Therefore, natural water cannot be directly used for domestic use or production without treatment.

According to research by experts, natural surface water contains very high levels of minerals, organic matter, suspended matter, algae and microorganisms. In addition, this water source is also significantly affected by the amount of wastewater from industrial parks and craft villages, so it can contain many toxic substances.

Thus, surface water not only does not guarantee safety and hygiene, but can also cause negative effects on human health. For that reason, it is required to have a water treatment system to remove harmful components in the water before it can be used for domestic use or for production.

Technological scheme

This is the first and very important step in water treatment. The main purpose is to remove impurities and large-sized wastes from the water source. This both cleans the water and limits the risk of clogging in subsequent water treatment systems. Surface water pretreatment includes the following steps:

Garbage screens, garbage nets have the effect of removing garbage, duckweed, algae in the water.
Sedimentation tank: Basically, surface water is a source of water with high turbidity because it contains a lot of sandy soil, mud and suspended impurities.

Therefore, it is necessary to bring water into the tank and let it settle for a certain time in order to make the impurities settle to the bottom. The bottom sediment will periodically be sucked and pressed into dry mud cakes and destroyed.

Chemical treatment in this stage is mainly aimed at removing algae and algae that are abundant in surface water. At the same time, destroy microorganisms, toxic substances caused by water sources affected by domestic wastewater, factories, industrial parks ...

The chemical surface water treatment process helps to prevent a part of waste and dirt from entering the treatment system. Thereby, contributing to preserving the devices present in the system.

Coagulation and flocculation aids have the effect of binding small particles or suspended impurities in the water into larger flocs. Thanks to this, they can be taken out of the water simply and easily.

This is a very important stage in the scheme of water supply and surface water treatment. Because they have a great effect in increasing the clarity and cleanliness of the water source.

After flocculation has been carried out, large-sized sediments will be settled in the tank through the following supporting methods:

Settling mud by gravity
Sedimentation by centrifugal force in the tank
Use buoyancy force to act on air bubbles attached to particles.

The main purpose of this process is to retain large particles suspended in water along with iron colloidal particles, organic colloids that make the water cloudy and discolored.

For large particles, they will be easily blocked when passing through the filter. Even particles with a size smaller than the openings of the membrane are easily blocked because the filter media has adhered and absorbed them on the surface.

This is a very important stage in the surface water treatment process. Because it has the effect of killing up to 99.9% viruses and bacteria that affect human health.

Currently, there are 3 main disinfection methods applied in the surface water treatment technology scheme, including:

Disinfect with Chlorine
Disinfect by ozone purging method
Disinfect by using UV lamp.

After killing harmful microorganisms in the water, it is necessary to filter the dead bacteria to prevent these microorganisms from decomposing and causing bad odors to the water.

After the body was filtered, the surface water became fresh and up to standard. Therefore, it is possible to supply water for domestic use and production as usual.

Evaluation of the technological diagram of domestic water supply treatment

In general, the above surface water treatment technology scheme is being applied quite commonly today. However, any system has certain advantages and disadvantages. To make it more convenient for customers to learn, here we will share some reviews about the above diagram as follows:

Surface water, after being treated through a system, meets the prescribed standards for quality of domestic and production water sources.
Operation and maintenance costs of the system are low because the equipment is imported from abroad, so it has high durability and stability.
Operation is simple, easy and very easy to manage and use, so it does not take much human time.
High filtration capacity, capable of meeting large surface water filtration needs.
It does not take up much space to build a vertical settling tank and no sludge overflows through the clean water tank.

The sedimentation tank has a relatively complex structure. To operate effectively, it is necessary to ensure that the elements of temperature and water fluctuations are always within standard limits.
This process needs to be managed by a skilled technician.