Drinking water is a compulsory course for everyone because the body needs to add enough water every day, and when there are pollutants in the water when we become sick, we can’t stand by! But why didn’t we worry about this problem before?
When they were young, every household used a teapot to boil water and rushed into a thermos to keep warm. Regarding the cleanliness of drinking water, at the time, we felt that it could be sterilized when it was boiled.
Later, there was a water dispenser, and the streets and alleys were covered with bottled water. Regarding drinking water, at the time we felt that the bottled water was cleaner, healthier and more convenient.
Later, with a water purifier, you can install straight drinking water at home. Merchants also have exaggerated propaganda, saying that they drink unpurified water, which is dangerous to pregnant women and children. However, in the news, we also heard about the decline in the quality of domestic water supply.
So, what is the purifier purified? Can be roughly divided into the following:
1. Suspended solids such as rust and sediment brought by underground water pipes. 2. Residual chlorine. For tap water production, it is necessary to undergo steps such as dosing and coagulation, chlorination and disinfection, etc. Chlorine and organic substances in water are prone to chemical reactions to form pollutants. 3. Microorganisms, bacteria and other substances.
The best price water purifiers on the market are available in microfiltration, ultrafiltration, nanofiltration and RO reverse osmosis, corresponding to the following substances that may be contained in tap water. The filtration capacity is as follows:
Different impurities are imagined as fish of different sizes. Different filtering methods are fishnets with different hole sizes. The expression is as follows:
Therefore, considering the current water pollution is so serious, the existence of water purifiers is still necessary!
In today’s life, there will still be people asking this question, which makes some home water purifiers feel helpless.
In fact, with the improvement of living standards, water purifiers are not new, and many people have this equipment in their homes. The development of water purifiers is related to our deteriorating environment and to our growing material life requirements. The role of the water purifier is obvious and the price is not expensive. For most families, it is a necessity.
The main function of the water purifier is to improve the tap water, to drink directly, to replace the bottled water, to be healthier and more sanitary. We can specifically look at the role and advantages of the household water purifier.
Cleaner than boiled water Although the boiled water is boiled, some bacteria have died, but the alum, sediment, rust, high-temperature bacteria, chlorine, heavy metals and other harmful substances in the water are boiled and cannot be removed.
Save peace of mind, save trouble, and save money Many people use bottled water instead of tap water, but the bottled water on the market is mixed and the quality is worrying. In addition, bottled water must be consumed within a certain period of time. Exceeding the time limit, bacterial microbes are abundantly produced and endanger human health. Many manufacturers still use fake and shoddy “recycling bins” to give water “secondary pollution”.
Effectively remove harmful substances It is understood that the water purifier is a purely physical filtration method, which can effectively remove harmful substances such as bacteria, residual chlorine, heavy metals, scale (calcium and magnesium, etc.), volatile substances, rust, sediment, etc. Drinking is, therefore, the ideal drinking water treatment solution for the family.
Concerns about water quality should start with “drinking water”, and a group of water partners aiming to improve the quality of drinking water were born in the late 1980s. The emergence of tap water, bottled water, and water dispensers have indeed improved the human drinking water environment to a certain extent, but its inevitable secondary pollution and poisonous barrel incidents have been exposed one after another. People began to pin their hopes on water purifiers. The more families are concerned about and installing water purifiers.
Quality life guarantee After the tap water is disinfected by chlorine gas, it can kill viruses and bacteria, but it cannot remove scale, heavy metals, volatile substances, and the like. The most effective way is to install a water purifier in the household water terminal, deep purification in the water terminal, and effectively separate and remove various pollutants such as bacteria, residual chlorine, heavy metals, volatile substances, rust, sediment, etc. Impurities and harmful substances in water can fully solve the secondary pollution problem of tap water and protect your home water.
The function of the water purifier product is to filter the floating matter in the water and remove heavy metals, bacteria, and viruses. It has a high filtration technology, generally five-stage filtration, and the first-stage filter element is also called PP cotton, the second stage. Granular activated carbon, the third grade is precision compressed activated carbon, the fourth grade is reverse osmosis membrane or ultrafiltration membrane, and the fifth grade is post-activated activated carbon, which is mainly used to improve the taste, so the water purifier is more suitable for areas with serious water pollution…
Household water purifiers can be divided into filtration, activated carbon adsorption, membrane technology, electrolysis technology, etc. according to technology, and membrane technology can be divided into microfiltration, ultrafiltration, nanofiltration and reverse osmosis.
From the comparison of water purification effect, ultrafiltration <Nanofiltration < reverse osmosis, reverse osmosis water is called pure water, ultrafiltration and nanofiltration require activated carbon to remove chemical pollutants.
Water purifier purchase
If it is a heavy industry polluting city, choose RO water purifier to filter out heavy metal ion insurance. If there is a lot of scale in boiling water (generally the water quality in the north is hard), or the pursuit of drinking water is relatively high, you can choose RO water purifier or water softener. In areas with softer water and less pollution (generally the water quality in the south is softer), if you want to save money, you can use ultrafiltration.
In areas with heavy chlorine and heavy taste in water, you can purchase more water purifiers with more activated carbon. For families with serious pollution and need to drink directly, reverse osmosis can be purchased.
The weather is so hot that people’s drinking water will increase greatly. Microorganisms are more susceptible to reproduction during hot seasons. The safety of drinking water is also particularly prominent. Some people pick up a cup of water directly, Some people take water from the faucet and then boil it with a kettle. But are these waters really safe and clean? It’s really Too Young Too Naive. It can only be said that the ideal is full, but the reality is very skinny.
After the bottled water is opened, it will take too long to be placed. The water dispenser is not regularly cleaned and disinfected. These are all likely to cause new pollution to water quality. Even the water coming out of the tap in the house, There is no guarantee that it will be innocent. They pass through water plants, reservoirs, valve faucets, etc. After a long pipeline, Can come to your home. This process maybe Infiltrating rust, mud, microorganisms, etc. Affect your water quality.
– How much water people need per day –
research shows, People are already in a state of micro-dehydration when they are thirsty. Active hydration is very important. An adult drinking every day At least 1500-1700 ml of high quality Drinking water (about 7-8 cups). ——Source: “Chinese Dietary Guidelines (2016)”
– The taste of water can also be optimized –
Tap water may contain Residual chlorine, volatile organic compounds, disinfection by-products, etc. Affect the smell and taste of drinking water.
Is water purifier useful? You can’t imagine these pollutions!
Nowadays, food safety problems are endless, and even the water that is drunk is not reassuring. So many people choose to use factory price water purifiers to purify tap water again. However, the brands and types of household water purifiers on the market are also very different. Many consumers have questions: Are these water purifiers really useful?
Perhaps many people still don’t realize that even if the water source is pure water, from the water source to the household faucet, and not to mention the pollution of tall buildings and underground reservoirs, there are several kinds of pollution that are inevitable:
The water is transported by a galvanized iron pipe, and water and iron are oxidized to form red iron oxide, which further oxidizes to form black ferric oxide. Pipes in new buildings are more susceptible to oxidation. Almost everyone has this experience. The faucet is turned on for the first time every morning, and the red material in the effluent is rust. Iron is an essential element of the human body, but as one of the indicators of drinking water, the iron content per liter of water must not exceed 0.3 mg. If the naked eye can distinguish the color of rust in the water or can taste the taste of rust, then the iron content in the water is greatly exceeded, the iron content exceeds the standard, not only the perception, poor taste, long-term drinking, will increase the burden on the kidney, leading to the endocrine system disorders, high blood pressure and other diseases.
2, lead and other heavy metals
During the transportation process, there will be a lot of heavy metals such as lead dissolved in the water. Long-term drinking will increase the burden on the liver and kidneys of the human body, and easily cause diseases in the liver, kidney, heart, and nervous system.
Chlorine is a strong oxidizing agent with a pungent odor and a mouthfeel. Chlorine is a tap water disinfectant widely used internationally. The residual chlorine is chlorinated and disinfected. After a certain period of contact, the amount of chlorine remaining in the water. According to international requirements, the safety of residual chlorine is that the end of the pipe network (at the household tap) should be kept at 0.05 mg/liter of water to control the growth of bacteria in the transportation process, so the city supply tap water basically contains a certain amount of residual chlorine.
Whether it is surface water or groundwater as a source of water, bacteria and E. coli in tap water can be said to be ubiquitous. Water is the source of life. The water contains nutrients, and the water has relative thermal stability, thus providing an excellent environment for the growth and reproduction of various bacteria. Even if the water contains a very small amount of nutrients, bacteria and viruses will survive and breed. Everyone knows the dangers of bacteria and viruses.
So is the water purifier useful?
The working principle of the water purifier is to purify the water layer by various filter elements to achieve the purpose of removing impurities. The filter element of the water purifier mainly includes a granular activated carbon filter element, a reverse osmosis filter element and a rear activated carbon filter. The filter element with better material can remove impurities such as sediment, rust, bacteria and suspended solids in the water, remove the odor in the water, and remove calcium, magnesium and other organic and inorganic substances in the water to purify and soften the water.
It can be said that there are many benefits to installing a water purifier. You must not realize the benefits of the water purifier below! Come and see.
The benefits of water purifier one: to solve the secondary pollution of tap water
After the tap water is disinfected by chlorine gas, it can kill viruses and bacteria, but it cannot remove heavy metals and volatile substances. After the long-distance transportation of tap water through the pipeline, it is susceptible to secondary pollution, so people basically choose to boil it and drink it again, but Boiling can only solve the bacterial problem, and can’t solve the problems of sediment, rust, heavy metals, volatile substances and bacteria “corpses”. The water quality of drinking water will not be fundamentally improved, and it will cause serious health hazards.
Benefits of water purifier 2: the best choice for replacing bottled water
A barrel of water is about 8 to 16 yuan, and the cost is high. Most of the water is tap water processed by a large commercial water purifier, and there is very little natural mineral water. At the same time, the shelf life of the bottled water is short, and the water dispenser is open after use and is easily contaminated by airborne contaminants. It should be consumed within 3 days, so it is not an ideal drinking water solution.
Water Purifier Benefit 3: Unlike bottled water, which is extremely expensive
Bottled water is listed as daily water by a few wealthy families, but its cost is too high. It is too luxurious for soup, rice, and vegetables.
Water purifier benefit four: reach the standard of raw drinks, lower cost
Household water purifiers can effectively block all kinds of pollutants, such as bacteria, residual chlorine, heavy metals, volatile substances, rust, sediment, and other impurities and harmful substances in the water, and the cost is much lower than that of bottled water. Good taste and good water quality make it an ideal drinking water solution for the family.
Little knowledge of clean water: the function and function of common water purifier filter on the market
People care about domestic water, and water purifiers become one of the essential home appliances in family life. At present, there are many kinds of water purifiers on the market, and the filter elements used are also various. We can’t know how to clean the water quality of the ordinary consumer water purifier. Here is a brief introduction to how the water purifier can purify the water. The water purifier relies on the internal filter element to filter impurities and pollutants in the water. It is the core component of the water purifier. At present, the water purifier filter element mainly includes PP cotton, activated carbon, ultrafiltration membrane or reverse osmosis membrane.
PP cotton The first-stage filter element of the cheap and best water purifier mainly intercepts and filters the water-insoluble suspended matter, sediment, red worm, rust, colloid and the like. As the foremost filter element, it can protect the rear filter element. Due to the front-end filtration, the filter loss is faster. It usually needs to be replaced in about 3 months.
Activated carbon Activated carbon is generally made of coal-based carbon or plant carbon (coconut shell, nutshell). After carbonization and activation treatment, it produces a developed pore structure and has a strong filtration and adsorption effect. In water purification products, activated carbon is mainly used to remove the odor of water and remove residual chlorine. At the same time, it has some functions to filter heavy metal ions, but it is weak. Due to the wide variety of impurities contained in tap water, in theory, activated carbon can adsorb some of the inorganic and organic substances, including some colloids. However, this will cause the activated carbon to quickly fail, so the activated carbon is often not used as the first-stage filter element, and PP cotton is added in front.
Ultrafiltration membrane The ultrafiltration membrane is a mechanical sieve membrane with an accuracy of typically 0.01 microns. At this level, most of the impurities can be filtered out, and some heavy metal ions and minerals in the water cannot be filtered. Therefore, in general, the water filtered by the ultrafiltration membrane cannot be directly consumed. However, in the southern part of the water quality, the filtered water of the ultrafiltration membrane has reached the requirement of direct drinking. Reverse osmosis membrane The reverse osmosis membrane is the mainstream product of the water purification equipment filter on the market. Under the action of a certain pressure, the reverse osmosis membrane can pass water molecules and other impurities will be trapped. Therefore, the water filtered by the reverse osmosis membrane is basically pure water. Therefore, people often use reverse osmosis water purification equipment. It is called a straight drink machine. Regarding the flux of the reverse osmosis membrane, 50G, 75G or 400G is generally common. For example, 50G means that the film is continuously operated for 24 hours, and the amount of pure water produced is 50 gallons, which is 189L. At present, reverse osmosis water purification equipment of less than 200G generally has a water storage tank.
In addition, the disadvantage of reverse osmosis is that the wastewater ratio is relatively large relative to its “net” advantage in purifying water quality. Of course, we can make rational use of it and solve the problem of waste.
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After we purchase the water purifier, we will encounter some minor problems during the use. Recently, many customers have called to ask if the water purifier does not produce water or the water is very low. So, today, I will teach you some knowledge about the household water purifiers that do not have water. I hope to help everyone.
The machine itself is faulty: no matter what device, it is very normal to have problems after using it for a long time. Household water purifiers will directly affect the machine’s clean water if internal parts or malfunctions, or other internal parts are damaged. For example, water quality is turbid, water is very small, and even water is not a common thing. Solution: When we use it for half a year, it is best to check and maintain the internal parts of the machine every 2-3 months, which is responsible for the health of our drinking water. And inspection and maintenance can extend the life of the machine and internal parts. This will ensure the water output and water quality of the product.
The water of the water purifier consists of water inlets, water pipes, filters, if this is the first time the water is not used, but the installation order of the water inlet and the water and pipes is wrong, the solution: the faucet, then the water purifier Installation specifications; if there is no water or less water after a period of use, it may be the cause of the blockage of the pipe or the filter is clogged. Solution: Pipe blockage directly removes the blocked part or replaces the new water pipe; the filter blockage will filter out and replace the new filter for direct use.
Check the pipeline of the water purifier, straighten out the water purifier pipeline; check the water purifier power supply, turn on the water purifier 220V AC, if the water purifier input power is normal, check the transformer output voltage; check the high voltage switch or float switch Whether it is malfunctioning, can’t jump back; check if the water inlet solenoid valve is normal. Unscrew the solenoid valve outlet, turn on the power, check whether the water is flowing, if it does not pass water, turn to the next test; open the original water ball valve to check whether the filter element is blocked before the reverse osmosis membrane, such as blockage; if the water is passed, the solenoid valve is damaged. Check if the pressure after the booster pump has reached the required pressure. If it is lower than 0.3MPa, it needs to be replaced; open the reverse osmosis membrane pure water port, if there is no water, the reverse osmosis membrane is damaged; check whether the wastewater discharge is too large, so that the ratio of pure and wastewater is out of balance; check whether the activated carbon filter element is clogged.