BIOENGINEER ANALYSISWATER

GOALS

Students learn how to collect water samples. Then, they will aseptically collect a water sample and use a microscope to look for fresh water organisms.

Students will perform chemical testing of their water samples and make and filter systems.

Extension: culturing and identification of bacteria in water samples.

WATER POLLUTION

• Water pollution is a major worldwide health problem. According to the World Health Organization more than 9 million deaths annually are attributed to waterborne diseases. One billion people do not have clean water.

• Video Water changes everything

WATER CONTAMINATION

• It is impossible to keep water 100% sterile or transported through streams or pipes. Water is going to come into contact with metals, organisms, chemicals ant other contaminants. We should keep water contamination at a minimum by keeping streams, pipes and reservoirs clean and separated from waste water, chemicals, sewage, dirt and other contaminants.

OBJECTIVES

• Students will learn how to collect water samples for quality testing

• Students will analyze water samples for common chemical contaminants

• Students will use a microscope and identify organisms in water samples

• Students will make a filtration system and remove contaminants from your water samples.

BIOENGINEER PROCEDURE

•Retrieved from http://www.westminster.edu/staff/robertkl/documents/Sampleprotocol.pdf on June 25, 2015

CHEMICAL TESTING

• May include some of the following: Calcium, Magnesium, Sodium, Potassium, Carbonates, Bicarbonates, Chloride, Sulfate, Nitrate, and Boron Metals Phosphorus, Aluminum, Iron, Manganese, Copper, Zinc, Nickel, Molybdenum, Cadmium, Chromium, Lead, Nitrates, Chloride, Sulfate, Fluoride, Bromide, Phosphate.

PHYSICAL PROPERTIES TESTING

• pH

• Electrical Conductivity

• Alkalinity

• Hardness

• Turbidity

• Conductivity