Domestic Wastewater Treatment Solution

Water treatment for domestic use is a process that applies modern water filtration technologies to remove impurities, sediment, iron residue, and heavy metals.

What is domestic water treatment?

There is no exact definition of domestic water treatment. However, it can be understood as a process that applies modern water filtration technologies. This process will remove all impurities, sediment, and bacteria present in the water source to ensure clean and safe water for human health.

Compared to individual small filtration systems for household use, using a domestic water treatment system is a more cost-effective and efficient method. Water experts recommend using a source water treatment system to ensure clean water for all human activities.

The importance of domestic water treatment

Untreated water supplied for domestic use contains many impurities, bacteria, or may be contaminated with iron or salt. When used, it can have negative effects on health, and may even be unusable due to unpleasant taste and odor.

Domestic water treatment ensures water quality meets the standards set by the Ministry of Health. This helps protect human health and has specific roles as follows:

• For well water, groundwater sources: The domestic water treatment system will remove impurities, residual metals, and pesticides in the water.
• For water contaminated with iron or salt: The system will remove iron and filter out salt.
• For water contaminated with lime: The system will soften the water, minimizing the effects of hard water such as scaling, yellowing of tiles, reduced soap effectiveness, etc.
• Eliminate musty odors, help kill bacteria, remove harmful viruses, microorganisms in water contaminated from mining, farming activities, etc.

Domestic water treatment system

Methods applied for domestic water treatment system

With the accumulation of traditional knowledge and the development of science and technology, water filtration methods are diverse. Here are the methods specifically applied for domestic water treatment systems. Proper application of these methods will ensure good water filtration efficiency and maximum filtration capacity.

Pressure filtration method or RO membrane filtration

This method is carried out by using high pressure to pass water through an ultra-small RO membrane filter to remove impurities, sediment, and bacteria. This method is widely used due to its high water filtration efficiency.

Ion exchange method

This filtration method is considered the top solution for water contaminated with iron, lime, and heavy metals.

The key player in this method is a specialized ion exchange resin. Through ion exchange reactions, this method will completely remove harmful metal ions in water such as iron, magnesium, manganese, etc. This helps soften the water and protect objects from the harmful effects of hard water.

Filtration method using filter materials

Water will flow through layers of filter materials. Impurities, sediment, organic matter in the water will be retained in these filter layers. This method only cleans the water but does not kill bacteria, microorganisms in the water.

Some commonly used filter materials are: Gravel, sand, quartz sand, manganese, activated carbon... even cotton, fabric...

UV disinfection method

This method uses short UV wavelengths to attack and break the DNA of microorganisms, destroying and preventing their growth.

This is a relatively effective method to kill all bacteria in the water.

Operating principle of domestic water treatment system

All water filtration methods have their own advantages and disadvantages. Using a single method alone may not guarantee effective water filtration. Therefore, modern domestic water treatment systems combine multiple water filtration methods in the same system.

The common operating principle of domestic water treatment systems is as follows:

The supplied water will be pumped sequentially through filter columns.

• The first filter column will block and treat large impurities, dust, etc. The components of this filter column are usually sand, gravel...
• The second filter column, also known as the coarse filter, is responsible for removing heavy metals, arsenic, and odor from the water. The main materials of this filter column will be activated carbon, manganese sand... For water plants located in areas with iron, salt content,
• lime, activated carbon... may be added to achieve higher quality domestic water.
• The next filter column is for water softening: As the name suggests, this filter column will use ion exchange resin to remove Calcium, Magnesium ions and soften the water.
• RO membrane super filter column: Water will be completely rid of tiny impurities, sediment, and microorganisms that are very small and difficult to see with the naked eye.
• UV germicidal lamp will be designed in the final step in all water treatment systems. UV lamp technology can kill bacteria in water.

Conclusion

The obtained water is clean and pure, meeting the standards of QCVN 01:2009 of the Ministry of Health.

The use of domestic water treatment systems is essential given the current pollution situation. Many units are available in the market to support the construction of domestic water treatment systems. Customers need to be careful when choosing a service to avoid buying fake or low-quality products.

Toàn Á JSC is also one of the reputable addresses providing water filtration equipment. We provide materials, support in building, and installing filtration systems for customers. If needed, you can contact Toàn Á directly via hotline 0913.543.469 for the most professional support and advice.