International Year of Chemistry 2011
American Chemical Society
Sponsors
Live Webcast with NASA –
September 22, 2011 @ 10:00am
 ACS and NASA partnered to launch a live webcast on
NASA’s Digital Learning Network (DLN). Pacific
High school was selected along with 2 other
schools in the United States to participate in a live
webcast, with ACS and NASA scientists (located at
Johnson Space Center) who explained and answer
questions related to water purification processes,
the IYC global water experiment, and water
purification on NASA’s International Space
Station.
Lab – Water: No Dirt, No Germs
 Possibly the biggest chemistry experiment ever.
Purpose
 To raise awareness of the critical use of chemistry to
provide one of the most basic human needs - Safe,
Clean Drinking water.
Research
 This lab will explore the role water has in society and
the environment.
Water: No Dirt, No Germs
 Use household materials to build a water filtration
unit and identify the efficiently of different filtration
materials
Background
 By 1911, water treatment was becoming common in
Europe and North America.
Waterborne disease
 In developing countries 4 out of 5 illness are caused by
waterborne diseases.
 1.1 billion people still lack access to improved drinking
water.
 2,213,000 deaths annually.
Natural Disasters
 After Tsunami in 2004 and Japan in 2010 and
Hurricanes like Katrina, there is always large increase
in water bourn diseases such as cholera, Hepatitis A,
Typhoid fever, Malaria, and Dengue Fever.
Waterborne disease
 Waterborne diseases such as typhoid fever and cholera
are still around, killing thousands of people each
year, even though chemical technology tools for clean
water are available.
Number of cases of waterborne
disease
Waterborne disease in USA
Transmission of disease through
water
Eliminating Waterborne Disease
 With simple household materials, water can be
filtered and disinfected to produce clean safe drinking
water for the world, virtually eliminating
waterborne disease.
Lab – No Dirt, No Germs
 This lab will replicate two main steps of drinking water
treatment:
1.
2.
Clarification
Disinfection
Clarification
 To remove solid debris from natural or waste water
 Involves four steps:
1. Aeration
2. Coagulation
3. Sedimentation
4. Filtration
Clarification – Step 1: Aeration
 Aeration: adds air to water
 Allows gases trapped in water to escape.
 Adds oxygen to the water
Clarification – Step 1: Aeration
 Done by shaking and pouring water back and forth
between two containers
Clarification – Step 2: Coagulation
 Coagulation: removes dirt and other floating solid
particles by chemically sticking them together in
FLOCS (clumps of Alum and sediment).
Clarification – Step 2: Coagulation
 Done by adding ALUM and stirring for 5 minutes
Clarification – Step 3:
Sedimentation
 Sedimentation: gravity pulls particles of FLOC to
bottom of container.
 Clear water remains at top and is drained and filtered.
Clarification – Step 3:
Sedimentation
 Done by letting ALUM treated water sit for 20
minutes.
Clarification: Step 4 - Filtration
 Filtration: sand and pebble filter removes most
impurities that remain in the water
Filtration Unit
Clarification: Step 4 - Filtration
 Done by pouring the top ¾ of the untreated water into
a filter and collecting the treated water.
Disinfection
 Disinfection: Drinking water chlorination
 A small amount of chlorine is added to large volumes
of drinking water.
 Destroys germs (Bacteria & Viruses).
Disinfection
 Done by adding enough chlorine (bleach) to destroy
germs, plus a little more to fight new germs that water
may encounter before water reaches your home.
 Extra chlorine is called “chlorine residual”
Disinfection
 Chlorine test strips detect the chlorine residual.
Pacifica High School Results
Chemistry Club Officers
Lab set up
 Adrian Quezada
 Nia Ferrer
 Karina Lopez
 Yalitzi Guerrero
 Sonia Mendoza
 Jeff Borreta
 David Lai
Lab Group 1
Members
 George Arce III
 Carolina Espinoza
 Keziah Valenzuela
 Anaiancy Ramirez
 Megan Vey
Lab 1 results
 Water from roadside puddle – Oxnard, Ca
Lab Group 2
Members
 Ky-Cuong Huynh
 Jackie Loyola
 Kathleen Callejo
 Shawn Copon
 Rita Nobile
 Krisha Algoso
Lab 2 results
 Lake Water – Mammoth Lake, Ca
Lab Group 3:
Members
 Lorena Covarrubias
 Lupita Delgadillo
 Inah Ducos
 Dana Salonga
Lab 3 results
 Pacifica High School Water – Oxnard, Ca
Lab Group 4:
Members
 Role Jay Del Castillo
 Ricardo Vasquez
 Jose Arias
 Alex Tapia
 Jamie Cruz
 Kenny Wong
Our Results
 Ocean Water – Ventura, Ca
Students:
Lab Group 5:
Members
 Juan Carranza
 Jenny Ruedy
 Angelica Bonilla
 Jonathan Tran
 Vanesssa Alvarado
Lab 5 Results
Ventura Pier, Ca
Lab Group 6:
Members
 Daniel
Hernandez
 Daniel Rodriguez
Lab 6 Results
 Creek water – Ojai, Ca
Lab Group 7:
Members
 Hector Ramos
 John Sampang
 Phillip Lai
Lab 7 Results
Channel Islands Harbor
Lab Group 8:
Members
 Karlo Santiago
 Sean Ligsay
 Hannah Licuidine
 Roland Digma
 Tino Dondiego
Lab 8 Results
Sea Bridge Ocean way
Special Thanks to:
 Water Collection – Mr. Carr and Mr. Edwards
 Technology – Mr. Erik Ward
 Teacher Support – Mrs. Winter, Mrs. Zehner, Mrs.
White, Mr. Sheehy, and Mr. Lee
 Facilities –Mr. Gurney, Mrs. Beltran, Mr. Hayes, and
Pacifica Special Education Department
Public Works in Oxnard
 Water...essential to all life: Past, present and future
 Our constant goal is to provide you, our customer, with a
safe and dependable supply of drinking water.
 We have provided resources of the Water Section’s services
to our residents that may be useful as a customer of the
City of Oxnard.
 Location: 251 South Hayes Ave.
Oxnard, CA 93030
 Phone: (805) 385-8136
Hours: Monday - Thursday (7:00 a.m. - 6:00 p.m.)
Alternate Fridays (7:00 a.m. - 5:00 p.m.)