Engineers Without Borders

1
Engineers Without Borders Water Purification
System
Group 10 Members Jonathan Da Silva Emanuel
Rios Kevin Gonzalez Kim Fellenz Abdul-Karim
Dawan Advisor Professor Frank Fisher
2
Water Purification System

• Goal Provide Safe Drinking Water for a community
  in need.
• Objective To develop a guide to build a water
  purification system.
• Synopsis It is necessary to first test the water
  before designing the system. The group researched
  carbon filters, sediment filters, reverse
  osmosis, ozone, kinetic degradation fluxion,
  water distillation, slow sand filtration,
  chlorination, and ultraviolet purification.

3
Case StudyTheoretical Location

• 400 people
• 60 homes
• Water source well
• Well 300 ft deep
• Village 1500 ft from well
• Village has basic electricity
• Village has no plumbing
• Contaminants in the water sand, soil, bacteria,
  fecal Coliform, Total Trihalomethanes (TTHMs).

4
Water Purification System Features

• Sediment filters remove sediment as small as fine
  sand
• Carbon filters removes many organics and
  inorganics
• UV purification system removes 99.9 of organisms
• Storage tank keeps a large supply of water near
  the town
• Actuated ball valve keeps the water in the tank
  when the pumps are off
• Water level controller prevents maintains a
  proper water level within the tank by controlling
  the pumps and actuated ball valve

5
Cost of Water Purification System
6
(No Transcript)
7
Indication System Features

• Alerts the community when the system is not
  functioning properly
• Flow rate sensor monitors the flow rate after the
  sediment filters to determine if the filter bags
  are full
• pH sensor monitors the pH level after the carbon
  filter to determine if the carbon filter is
  working effectively.
• UV sensor monitors the intensity of the UV light
  to determine if the wavelength is high enough to
  effectively kill the contaminating organisms
• The controller is programmed with the desired
  levels for each variable and it sets off a
  corresponding LED if the variable is out of range

8
Indication Microcontroller Mounted in the Carbon
Filter Enclosure
Microcontroller
9
Cost of Indication System
10
(No Transcript)
11
Indication System Prototype

• Controller Programmed with LabVIEW
• Prototype Test Setup

12
Indication System Prototype
Flow Sensor Setup
Flow Sensor
13
Indication System Prototype
pH Sensor and Setup
LabVIEW Test Display
14
Prototype Test Results

• The test results show that the Indication system
  was able to successfully detect and set off the
  LED indication when
• The flow of the system went below a desired flow
  rate.
• The pH of the water went above the acceptable
  drinking range of 6 to 8.5 pH.
• The intensity of the light dropped below an
  acceptable wavelength.