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Foul water lab. Your objective--------- is to clean up a sample of foul water, producing as much “clean water” as possible, to a point where it could be used for hand-washing. (Caution: Do not test any water samples by drinking or. Materials. Measuring cylinder Erlenmeyer flask Ring stand

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foul water lab

Foul water lab

Your objective--------- is to clean up a sample of foul water, producing as much “clean water” as possible, to a point where it could be used for hand-washing. (Caution: Do not test any water samples by drinking or

materials
Materials
  • Measuring cylinder
  • Erlenmeyer flask
  • Ring stand
  • Funnel
  • Filter paper
  • Glass rod
  • Pipette
  • Disposable cup
  • Paper clip
  • Sand
  • gravel
precautions foul water lab
Precautions foul water lab
  • Follow all lab safety rules
  • Protect eyes and skin
  • No horse play
  • Know the procedure for the lab before starting
  • Report accidents and broken glass will be disposed off by the teacher
  • Wash the graduated or measuring cylinder after each purification
precautions foul water lab continued
Precautions foul water lab continued
  • Check for any broken or chipped equipment. If any of your equipment is dirty please clean it with soap and water.
  • Do not pour any sand or gravel into the sink!)
  • Waft to smell
  • Do not taste the cleaned and purified water
  • Wash your hands with soap and water at the end of the experiment
oil separation
Oil separation
  • Allow the sample of water to sit in the graduated cylinder for a minute before removing the oil
  • Dispose of the oil in the container provided by the teacher
sand filtration
Sand Filtration
  • Add pre-moistened gravel and sand layers to the cup as shown in Figure 1.6 in your textbook
  • Gently pour the sample to be filtered into the cup. Catch the filtrate in a beaker as it drains through.
  • Dispose of the used sand and gravel in the trash can (Caution: Do not pour any sand or gravel into the sink!)
  • Observe the properties of the filtered water sample and measure its volume.
  • Record your results. Save the filtered water sample for the next procedure.
slide7

Gravel

ss

Moistened

Sand

Gravel

Use a paper clip to make a hole

charcoal adsorption
Charcoal Adsorption
  • Teacher will add charcoal to the filtered water
  • Stir
  • filter
  • 1.