Multiple-Source Water Harvesting, Purification, and Distribution

December 12th, 2007

Tyler NodaJeff Green

Steve Catania

EDSGN 100, Section 008 – Xinli Wu

A Broken Jamaica?

Words can have a powerful effect on the human mind, and when one hears the world “Jamaica” images of white sandy beaches form, because isn’t that paradise? These exclusive spots that reserve themselves for tourists only make up a small portion of the actual country. Jamaica is a third world country who has, since gaining its independence from Britain, undergone the ultimate transformation from a peace-bearing paradise to a country torn by poverty, war, and political factions rendering the country broken.

What’s our mission?

The goal of this project was to generate a plan that improves upon the basic needs a rural community located in a third-world country. By taking advantage of both purification of existing water and various piping systems, the net water supply has increased for uses such as irrigation and self-sustainability.

Design Execution Process

24-Oct

31-Oct

7-Nov

14-Nov

21-Nov

28-Nov

5-Dec

12-Dec

Identify Needs ―

Problem Statement                

Mission Statement                

Specifications ― Gantt Chart                

Brainstorming ― Brainstorming                

Concept Selection ―

Evaluation                

Design Matrix                

Cost Evaluation                

Prototype ―

Solidworks Design                

Webpage                

Solid Model                

Present ― Demonstration                

Where, exactly?

Where, exactly?

Where, exactly?

Concept Generation Phase

*Abbreviations Key-----------------------------------------------------------------------------RP – River water and Piping SystemRPRW – River and Rain water Piping SystemRPRW-I – River and Rain water Piping System, Irrigation Piping SystemRPRW-H – River and Rain water Piping System with Underground hallway access systemRPRW-HI – River and Rain water Piping System, Irrigation Piping System, and Underground hallway access system

SELECTION CRITERIA

Concept Name

(A.) RP Syste

m*

(B.) RPRW*

(C.) RPRW-H*

(D.) RPRW-HI*

(E.) RPRW-I*

Price 0 + - - +

Damage to Land + + - - +

Safety of Purified Water 0 0 0 0 0

Additional use for Irrigation - - - + +

Portability - - - - -

Ease of Use 0 0 + + 0

Ease of Maintenance 0 0 + + 0

Durability 0 0 + + 0

Sum of +'s 1 2 3 4 3

Sum of 0's 5 4 1 1 4

Sum of -'s 2 2 4 3 1

Net Score -1 0 -1 1 2

Continue? No No No Yes Yes

Concept Generation Phase

Design Selection Matrices Phase

           

Concepts

Selection CriteriaWeig

ht

(D.) RPRW-HI* (E.) RPRW-I*

Rating

Weighted Score

Rating

Weighted Score

Price 5% 5 0.25 5 0.25

Damage to Land 20% 2 0.40 4 0.80

Safety of Purified Water 20% 4 0.80 4 0.80

Additional use for Irrigation 15% 5 0.75 5 0.75

Portability 5% 1 0.05 1 0.05

Ease of Use 5% 4 0.20 3 0.15

Ease of Maintainence 10% 4 0.40 3 0.30

Durability 20% 4 0.80 4 0.80

           

Total Score 3.70 3.90

Continue? No DevelopContinue? No Develop*RPRW-I = River and Rain water Piping System, Irrigation Piping System *

*RPRW-HI = River and Rain water Piping System, Irrigation Piping System, and Underground hallway access system

Purification of the Water

Water Purification: The water will come from two sources; (1) a nearby river and (2) rainwater that is collected in a tank.

The water is pressurized by a shallow-well pump and is formed into the piping system with outdoor PVC piping.

The particulates in the water are filtered with two conveniently named particulate filters in series that are rated 20 and 5 micron particle size.

Sterilization of the water occurs via an Ultraviolet light that must minimally be capable of sterilizing water at 10 gallons per minute. (Fluorescent ultraviolet light rated at 9600 hours, about one year of continuous use).

A screen must be placed over the rainwater tank and the wells distributed throughout the village to protect against various insects that could potentially contaminate the clean water.

Smaller Scale Purification…

Diagram courtesy of http://www.rwh.in/

Smaller Scale Purification…

Photos courtesy of http://www.rwh.in/

Water Distribution

As displayed via the 3D representation, the collected water from both the river and the rain is purified in the same area by the means described above.

Pressure valves control the flow of water and distribute it accordingly through a system of underground pipes that lead (a) into the village and into wells and (b) into a specialized pipe system designated for irrigation.

The wells provide the people with an outlet to obtain freshly cleaned water.

The irrigation system consists of pipes that distribute water over a specific plot of land where villagers may grow their crops for food.

Cost Analysis

ITEM QTY. PRICE

Water Storage Tanks 5 $ 3,000,000

Sanitation Plant 1 $ 350,000

Rainwater Collector 1 $ 50,000

Wells 4 $ 13,000

Sewer/Irrigation Piping 1600 ft $ 5,000

TOTAL $ 3,418,000

In Conclusion…

References.

Errson, Ole. Rainwater Harvesting and Purification System. 14 Nov. 2006

<http://www.rwh.in/>

Mustard Seed Community Online. Jamaica Facts. 11 Dec. 2007

http://www.mustardseed.com/locations/jamaica.html

Google Maps

http://maps.google.com/?ie=UTF8&ll=17.949014,-76.392274&spn=0.019515,0.028925&z=15&om=1

<http://www.mcmaster.com/>