free chlorine

Operation Water Biology Test Procedures

Operation Water Biology Test Procedures

These are the directions for performing the tests that you will refer to each time you need to determine the total chlorine, free chlorine or ammonia concentration of a water sample.It is important to follow these testing instructions very closely. Extra test strips are not provided so you will need to make each one count.

Operation Water Biology Glossary

Operation Water Biology Glossary

Biological Filtration: The use of bacteria and natural biological processes to remove contaminants from water.
Bio-oxidization: When a substance has been oxidized by bacteria.

All Operation Water Biology Handouts in One PDF Document

All Operation Water Biology Handouts in One PDF Document

Operation Water Biology Lesson One Chlorination and Dechlorination The purpose of a water treatment plant is to take raw water form a well or fresh water source, remove all of the contaminants and make the water safe to drink.

Lesson Three: Ammonia and Chloramine

Lesson Three: Ammonia and Chloramine

Students will learn about the sources of ammonia in ground water, the consequences of high ammonia concentrations in water supplies, and the manner in which these problems are usually dealt with. Students will learn about biological filtering as a way to use bacteria to remove ammonia from water. Students will learn about the chemical reaction between chlorine and ammonia which results in the creation of chloramine and will learn about chloramine. Students will be able to demonstrate calculations involving concentrations, volumes and dilution factors.

Ammonia and Chloramine Reading Assignment

Ammonia and Chloramine Reading Assignment

1. Which chemical is one of the most important in the water treatment process?
2. What is the chemical formula for ammonia?
3. Which two types of water sources commonly contain ammonia? 
4. Give 3 ways that ammonia can be added to soil.