The domestic water tank is the most critical water storage facility for secondary water supply. Whether the water quality is good or not depends on whether the disinfection method is selected correctly. There are many disinfection methods in the market, with great differences in effect, cost and safety. Many property managers, water plants and community managers are struggling: which one is more secure? Combined with our many years of on-site service experience, we will explain several mainstream schemes clearly and help you choose the right one at a time.

The common disinfection methods of domestic water tanks mainly include traditional chlorine containing disinfectants, ultraviolet rays, ozone and chlorine dioxide. The application scenarios, advantages and disadvantages are completely different and cannot be generalized.

Real comparison of several water tank disinfection methods

1. traditional chlorine containing disinfection (84, sodium hypochlorite)

In the early years, the most commonly used water tanks in the community had the advantage of being cheap and easy to buy. However, the problem is very prominent: it is easy to generate by-products such as chloroform from the organic matter in the water, which has a pungent smell and short duration. It also has certain corrosion on the metal wall of the water tank. Now the regular water supply units rarely use it as the main disinfection.

2. ultraviolet disinfection

It belongs to physical sterilization with no chemical residue and simple operation. However, it is only useful for the water passing through the lamp. The dead corners of the water tank and the biofilm on the pipe wall can not be illuminated at all. The bacteria in the water cut-off soon grow back. It can only be used with other disinfection methods.

3. ozone disinfection

Fast sterilization and good deodorization effect. However, the equipment is expensive, the operation is complex, excessive is harmful to the human body, and can not be retained in the water tank for a long time, so there is no protection when it is shut down. The cost performance of ordinary residential and civil water tanks is not high.

4. chlorine dioxide

This is the mainstream optimization of domestic water tank and secondary water supply at present. Broad spectrum sterilization has a high killing rate of common pathogenic bacteria such as Escherichia coli and Legionella, does not produce harmful by-products, meets the drinking water standard, can maintain a stable margin in the water, has long-term algae inhibition and bacteriostasis, is friendly to stainless steel and carbon steel water tanks, and effervescent tablets and powders are convenient to use.

Recommended disinfectant for domestic water tanks: Xiuba chlorine dioxide

Shandong Huashi Pharmaceutical Co., Ltd. has been doing chlorine dioxide disinfection for more than 40 years. It is a high-tech enterprise, a specialized and special new enterprise in Shandong Province, and a central emergency reserve material unit. Xiuba brand is very mature in the field of secondary water supply and tap water disinfection.

• more reliable with complete qualifications

It has complete water related approval documents and third-party test reports, has passed the ISO three system certification, fully conforms to the disinfection specifications for drinking water, and has no safety risk when used in residential water tanks.

• simple operation without complex equipment

Effervescent tablets can be directly added and the powder can be diluted according to the proportion. Both large and small water tanks can be used. Ordinary operation and maintenance personnel can operate with simple training.

• long term worry free, reduce operation and maintenance costs

One time dosing can last for one to two weeks without further cleaning and disinfection. It not only reduces the frequency of cleaning and disinfection, but also does not need to cut off water frequently. After long-term use, it is more cost-effective and more stable than the traditional scheme.

Practical operation method of domestic water tank

We have used this process in many communities and water plants across the country. It is simple to operate and has good results. Here we share it for your reference:

1. empty the water tank first, and clean the dirt and biofilm on the inner wall;

2. put 1-2 effervescent tablets into the water inlet according to the amount of 1 ton of water, and dissolve them naturally with water;

3. after the dissolved solution is left standing for about half an hour, it can be supplied with water normally without repeated washing, and it is safe without residue.

Practical summary

The disinfection of domestic water tanks directly affects the drinking water safety of residents. Among the four mainstream methods of traditional chlorine containing disinfectants, ultraviolet, ozone and chlorine dioxide, the first three either have the risk of by-products, or the sterilization is not complete, or the cost is high and the operation is complex. It is difficult to consider the safety, long-term effect and practicality at the same time. Xiuba chlorine dioxide is a full scene high-efficiency disinfectant created by Shandong Huashi pharmaceutical. It not only performs well in the field of domestic water tank and secondary water supply, but also is widely used in disinfection scenarios such as food factories, hospital sewage, waterworks and public environment. It has no harmful by-products, broad-spectrum and thorough sterilization, long duration, simple operation, and fully meets the core needs of domestic water tank disinfection.