Mobsea Logo
Home

Methods of Purification

Simple Science

<
^
>

Methods of Purification

Water:
Water is improved by any of the following methods: -

(a) Boiling. The heat of boiling destroys animal and vegetable germs. Hence water that has been boiled a few minutes is safe to use. This is the most practical method of purification in the home, and is very efficient. The boiled water should be kept in clean, corked bottles; otherwise foreign substances from the atmosphere reënter the water, and the advantage gained from boiling is lost.

(b) Distillation. By this method pure water is obtained, but this method of purification cannot be used conveniently in the home.

(c) Filtration. In filtration, the water is forced through porcelain or other porous substances which allow the passage of water, but which hold back the minute foreign particles suspended in the water. The filters used in ordinary dwellings are of stone, asbestos, or charcoal. They are often valueless, because they soon become choked and cannot be properly cleaned.

The filtration plants owned and operated by large cities are usually safe; there is careful supervision of the filters, and frequent and effective cleanings are made. In many cities the filtration system is so good that private care of the water supply is unnecessary.


<
^
>

Uses of Refraction
The Musical Scale
How Electricity may be lost to Use
Movable Pulleys
Noise and Music
How Refraction Deceives us
The Companions of Molecules
Practical Application Heat
Some Unfamiliar Forms of Burning
The Poverty of the Soil
The Dynamo 1
The Thermometer
More ...


Test your English Language
Fashion Designer Cars in the world
Ways To Waste Less Food
Precautions while using Kitchen Equipments
Makeover Tips for Cheeks
Celebration of Nag Panchami
Ajanta Caves
Fish Aquarium
Cutting Edge Technologies Soon to be Used in Cars
Forever Young Naturally Eating
Crazy Facts
Creative Cleaning Hacks
XMas Bucket List
Benefits of Lychees
Marriage
Precautions while using Securing Email
Fashion Designer Cars in the world
Fashion Designers of all time
Fashion Trends That Didnt Survive the 90s