Source water may contain turbidity (muddiness), particles, and organic material. Federal and state laws require all surface water systems and systems under the influence of surface water to filter their water. The primary water treatment technology uses filtration techniques. Filtration is the removal of particulates, and thus some contaminants, by water flowing through a porous medium.

Aquatic Library

Ammonia is a common pollutant found in water. In small amounts it is harmless to most life, but in large amounts ammonia can be toxic. Ammonia is commonly used in Chloramine, a compound that sterilizes water in many urban water systems. The Rhode Island Sea Grant points out that ammonia contamination is a common problem in aquaculture, and that...

This Water Filter is very easy and quick to make. Most, if not all the materials can be found in or around your house. A Water Filter can be a necessary survival item if you have no access to clean water. Materials Needed: - Water Bottle - Scissors or Knife - Coffee Filter, Cotton Balls, or fabric.

Water is the basic essential to life. People can live up to a week or better without food, but can only live 2-to-3 days without water. Clean water can be hard to find if you get stranded or there is an emergency. If you have to find your...