I believe everyone knows about water purifiers, but do you know about wastewater free water purifiers? Due to water quality issues, many households have installed water purifiers, and the mainstream RO pure water purifiers on the market generate a lot of wastewater during use. So how is this wastewater generated, and what is the reason for no wastewater?

At present, the wastewater rate of most new water purifiers on the market has been controlled at around 1:1. Many of them only discharge one cup of pure water and less than one cup of "wastewater". Water purifiers with better technology will discharge less wastewater than usual. However, taking a shower alone every day requires us to waste about 40L of water, and our family spends 3600L of water per month. So even if the wastewater from the water purifier is not utilized, it will not cause excessive waste of water resources, so there is no need to worry about excessive wastewater.

1、 How does a water purifier purify water and produce clean water and wastewater?

Nowadays, the main water purifiers are RO reverse osmosis water purifiers. The pore size of the reverse osmosis membrane of the reverse osmosis water purifier is about 0.5-10 nanometers, which can only allow water molecules and a small amount of trace elements to pass through. After this small amount of water molecules and trace elements pass through, other impurities such as sediment, rust, bacteria, and other large particles will be discharged on the other side of the reverse osmosis membrane. The water containing impurities such as sediment, rust, bacteria, etc. will be discharged on the other side of the reverse osmosis membrane, which is called wastewater.

2、 Is it possible for some netizens to see some businesses claiming that water purifiers do not produce wastewater?

This situation is possible, but currently there are few such technologies on the market because water treatment membrane technology is divided into dead end filtration and cross flow filtration technology. Most water purifiers now use cross flow filtration technology, which requires wastewater discharge. Dead end filtration technology directly filters without discharging wastewater, directly filters impurities, and clean water is discharged directly.

Does wastewater from water purifiers have reuse value?

However, these "wastewater" are directly discharged in vain, which always feels a bit wasteful. After all, it is very different from shower water. Taking the RO reverse osmosis water purifier as an example, the "wastewater" has already been filtered through the first three stages of filter, and a lot of impurities have been removed.

Except for slightly higher salt content and bacteria compared to tap water, most other indicators of wastewater, such as turbidity, chromaticity, organic matter, colloids, etc., are much lower than tap water.

In summary, we can completely collect these "wastewater" in buckets. If we make good use of them, their value is actually quite high.

Finally, let's answer the second question above, does there exist no wastewater purifier? The answer is there. Jiajie's wastewater free water purifier is actually an effective utilization of the wastewater generated by the purifier, and through reflux technology, it truly achieves wastewater free discharge. This is much more advanced than traditional water purifiers, because it not only saves water resources for itself, but also saves water resources for the country, making it more environmentally friendly and scientific.

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