There are three ways to drink water at home, three ways to rest assured.
http://sd.sdnews.com.cn/jinan/201304/t20130411_1174324.htm
Shandong commercial newspaper reporter Lin Qian
whether it is the old pipe network or the two water supply facilities, when the water reaches the national standard, the drinking water is often caused by these two middle links. The problem. So how do you solve it? Now it seems that there are three ways to drink the rest of the household's drinking water through direct drinking water projects, or to buy bottled water and install water purifier. What are the advantages and disadvantages of each of these three methods?
[direct drinking]
advantages: source extraction of high quality groundwater, new pipeline to avoid two pollution
for the citizens of Spring City, "direct drinking water" has always been the focus of attention. According to the plan of Ji'nan, the residents of the west railway station will drink straight water in the near future. Where is the direct drinking water good? How can we avoid the two pollution?
the reporter has learned that the direct drinking water project will take deep groundwater as the source of water, through filtration, softening, membrane separation, sterilization and other methods, to make it a high quality direct drinking water. According to the principle of "superior water and superior use", the water supply mode of "separate quality and disperse" is adopted. To maintain the existing urban water supply network, the new "underground water well - water pipeline network - water distribution station - water distribution network - into the household project" water supply system, and the existing urban water supply pipe network separation, forming a direct drinking water supply system of high quality groundwater independent pipe network.
shortcoming:
in the interview, the direct drinking water project in Ji'nan is mainly located in the West Passenger Station area, and has not benefited the main city area. At the same time, the project needs a new water supply pipeline and 5 direct drinking water treatment stations in the middle. The project is huge. It is expected to be put into use by the end of 2015 and the construction period is too long.
at the same time, the price of direct drinking water is not the same as that of ordinary tap water. It needs to be priced separately, and it must be higher than the current water price.
[bottled water]
advantages: water source clean and closed transportation
for ordinary residents, bottled water has entered thousands of households. The current barreled water sources are generally natural groundwater, such as mineral water and mountain spring water, which themselves contain the trace elements needed by the human body, drink more healthily, and some are urban tap water, processing tap water into barreled water, such as pure water, distilled water and ionic water, using physical and chemical methods. The chemicals, bacteria and viruses that are harmful to human body are removed.
the transportation of barreled water relative to tap water has not passed through the pipeline, through the closed bucket, reducing the external pollution, and directly shipping to the residents' homes.
disadvantages: the price is high, the price of the barreled water is far higher than the tap water, so the price of the barreled water is far higher than that of the tap water. Therefore, it can not be used widely in life. Most of the residents only choose the barreled water when they drink water simply. As for the usual cooking and washing, the water can not be used to guarantee the drinking of the human body. Water is clean water.
as the profit of barreled water is considerable, many black hearted manufacturers pretend to be famous brand water, so the public can not avoid drinking fake water.
[water purifier]
advantages: the filter has the guarantee, the widely used
water purifier belongs to the household water equipment, it is more convenient to use, purify and filter the tap water. At present, there are two major categories of activated carbon water purifier and ultrafiltration water purifier in the market. The physical separation method can remove the odor, residual impurities, residual chlorine and heavy metals in the water, and keep the natural mineral elements beneficial to the human body, so that the tap water can be directly drinkable without burning.
disadvantages: need to change "core", market chaos
with the extension of the use time, the impurities in the water will plug the filter core, the adsorption is saturated, the common main is the physical barrier filtration and adsorption functions, such as P cotton filter core and activated carbon filter core. These two kinds of filter cores can not effectively remove bacteria and organic contaminating microbes, and are not easy to find after saturation failure. After the filter core is saturated, it needs to be replaced in time. In general, the PP filter core needs to be replaced for 3 months and the activated carbon filter core needs to be replaced for 6 months. This also increases the maintenance and maintenance cost of the water purifier to some extent.