An Experiment to Determine the Total Hardness of 4 Different Types of Bottled Water

According to the manufacturer, the average total hardness of the bottled drinking water is calculated to be 29.25 mg / L while the total hardness of the tap water is 41.1 mg / L, which is still harder than the bottled drinking water . As a result, it is assumed that the experimental result proves that tap water is more difficult than bottled water, so it is assumed that this is "harder than bottled water as it comes from natural fountain" That means that it is incorrect. However, as there are many causes of errors in this survey, we think there is still a chance.

In this experiment, I examined the water quality of two types of bottled water and tap water. I use Dasani and Fiji brands as mineral water and faucet water. Ammonia, chloride, 4-in-1 test paper, phosphate and iron test paper, the most important is stopwatch. I used all the test strips I prepared in various kinds of water and recorded the results. Some strips I used tested ammonia, chlorine, phosphate, iron with mineral water and tap water.

There are three types of drinking water: tap water, filtered water, mineral water. However, the difference between each type is not as clear as you think. For example, according to the Natural Resource Protection Council, about 25% of bottled water is just bottled water. In addition, federal regulations governing bottled water manufacturers are often less stringent than tap water. If you do not like the taste, it is convenient to use a tap water filter to remove certain contaminants such as pesticides and residual chlorine. However, some chemicals can not be removed with filters such as nitrates, and most household filtration systems are not designed to filter bacteria or viruses.

Aquafina 's bottled water is bottled in 33 different places nationwide from municipal tap water. It is filtered in process, purified and contains 7 separate steps called HydRO-7 purification system. The process includes filtration, exposure to high intensity light, infiltration, polishing and ozone treatment. As a result, total dissolved solids (TDS) content of 4 ppm water is obtained, which is 5 times the maximum value of Food and Drug Administration (FDA).

Get all Oprah about it and let everyone fall in love with the water bottle. You get a bottle of water and you get a bottle of water and you get a bottle of water. Everyone has a bottle of water! Today, they produce one million kinds of reusable water bottles, each one suited for every interest. Football team, college, butterflies, funny proverb, your name. 15. Consider the diaper and consider using an efficient washing machine and dryer if possible. Cloth diapers not only prevent disposable diapers from entering the landfill, but also prevent the baby's reproductive organs from being exposed to chemicals (do you know chemicals that absorb diapers? This is a matter of love and spark There is none). breakfast