تجربة علمية باللغة الانجليزية

Experience a process of purifying water from contaminants "suspended solids, colors and smells unwanted":

Some may not realize that coal, "carbon powder," which is known as Aharcol (Char coal) is used in several applications of life, and these applications "purifying contaminated water that bears some impurities and particulates, as well as some of the colors and smells unwanted

This method is used for the desalination plants as well as well as in water treatment plants, sewage contaminated overland 0

The principle upon which this method depends on the adsorption process of "adsorption" adsorption where the charcoal or activated carbon process to attract particles and contaminants on the surface and the distance between them and the water is up to the process of demineralization easily 0

Some housewives using coal put a piece of it in the refrigerator to get rid of any unwanted smell 0


It is customary when you try to conduct this experiment on a simplified level as in the laboratory school, we constantly upgrade their heating quantity of charcoal or animal in order to activate 0

And one of the experiments and is interesting and preferably made by the students to develop their skills 0

I will explain a simple experiment to purify a sample of contaminated water as follows:

Tools required:

1 - 50 to almost 100 g of charcoal or animal stimulant 0
2 - liter of ordinary water 0
3 - the amount of sand and stones 0
4 - Some colorful Kalmernda carbonated beverages, Pepsi, or any means of Elshani colored 0
5 - very small amount of ammonia diluted "ammonium hydroxide" article by the smell of 0
6 - a large glass cup 0
7 - a wooden board to toggle 0
8 - conical flask "Filter" 0
9 - Suppression of the nomination of 0
10 - filter paper 0
11 - Stand 0
12 - water bath 0

How It Works:

1 - We come empty glass cup and put it a little sand, which contains large and small plankton 0
2 - Pour a very small amount of ammonia "colorless" to the previous cup "to give the smell of" 0
3 - add a bit of Almirnda Elshani or a mixture of the former "to give color" 0
4 - add the quantity of water normal "tap water" 0
5 - gradually we start adding activated charcoal, "carbon" for the combination of the previous 0
6 - using a plank we inversion mixture for the period between 3 to 5 minutes continuously 0
7 - show the suppression of the nomination on the wooden rack, and then put on the repression glass filter paper folded in the usual way after 0
8 - we start pouring the mixture contaminated by suppressing the nomination and, of course, welcome in the flask filtration Arashaha 0

Views:

Note the separation of suspended solids and impurities and sand on the Suppression of the nomination and the descent of an aqueous solution in the flask colorless reception, free of any contaminants or odors, and for the sweet taste is located in the soft drink can be separated from the water vaporization sugar solution in a water bath 0

Note:

This is done in the laboratory on a small scale, we aim only to clarify the work of carbon or activated charcoal in the process of purifying water from the contaminants, color and odor of the definition of the concept of the process of adsorption 0

It is possible to conduct the test at home for ease and availability of basic raw materials have 0

While in treatment plants, contaminated water and desalination plants is up to the process on a large scale will be used as some chemicals Kmktherat precipitators and some substances that can not be disposed of by coal or activated carbon 0


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