Green Health Guide for Household Water Purifiers

Green, healthy and happy life. A healthy diet is essential to health. Clean drinking water plays a role as a scavenger in the process of metabolism. Ensuring that drinking water is clean and safe is the best way to protect family health. Clean water should be treated from the "source". In addition to urging the state to introduce laws to protect the safety interests of people's drinking water, the way to get closer to the life of ordinary consumers is undoubtedly to install a household water purifier.

If you decide to buy a household water purifier, experts suggest that you buy products that have passed the inspection of the Ministry of Health. The most direct way is to log on to the website of the Ministry of Health to check whether the manufacturer of the water purifier is registered. If the products that have passed the inspection of the Ministry of Health can be purchased with care, otherwise you should be careful.

In addition to knowing whether the enterprise has passed the inspection of the Ministry of Health and obtained the wading certificate, the filtering method of the water purifier is also very important. Due to the increasing pollution of chemicals and heavy metals in recent years, ordinary water filters cannot completely filter out harmful substances in water. If you want to buy a suitable water filter, you should have a general connection to the filter element of the water filter. The following is a summary of the most common filtration types and their decontamination characteristics.

1. Coconut shell activated carbon filter

A tank or bottle shaped ordinary filter, the shell is generally stainless steel or ABS plastic, and the inside is filled with coconut shell activated carbon, which is used to filter and absorb free substances, microorganisms, and some heavy metal ions in water, and can effectively reduce the odor and color of water. This water purifier usually needs to be connected to an existing pipe. It can mainly remove: parasites, radon, pesticides and herbicides, lead, polychlorinated biphenyls, by-products of chlorine (chloramine and trihalomethane), some, gasoline additive methyl tert butyl ether, dry cleaning solvent trichloroethylene, some volatile organic compounds, some bacteria (such as Cryptosporidium and Giardia) and a few drugs.

2. Filter of reverse osmosis system

This is a membrane separation process that extracts fresh water from the water body with the pressure higher than the osmotic pressure as the driving force and the selective permeability of the selective membrane, which can only penetrate the water but not the solute. As an extremely fine filtration technology, it is often used together with the activated carbon filter. It can filter out harmful substances that cannot be filtered by chemical activated carbon filter, including perchlorate, fluoride, industrial chemicals, sulfate, heavy metals (including lead), by-products of chlorine, chloride (making water taste salty) and drugs.

3. Ultraviolet water purifier

The applied wavelength is 225-275 μ m. Peak at 254 μ M, which has high energy. It can destroy the nucleic acid structure of microorganisms and has a strong bactericidal effect to achieve the purpose of disinfection. The disadvantage is that the installation cost is high. The equipment can effectively kill Escherichia coli, dysentery bacteria, legionella, influenza virus, hepatitis virus, etc., so that the water can be purified. Experts recommend using activated carbon filters together to eliminate other contaminants.

4. Distillation

It is probably the most practical way to live at home, by boiling to obtain condensed water. The disadvantage is that the energy consumption is large, and a large number of gas or liquid phases are generated in the production process. The main disinfection targets are: heavy metals (including lead), particles, total dissolved solids, microorganisms, fluoride, lead, and mercury.