Greywater Delivery System

Frank Gonzalez Julie Hammond

Ryan KeithSasha Merced Audrey Miller

Residence-To-GardenGreywater Delivery System

Acknowledgements

• Physical Plant• Earth Works• Patrick Stoner• Drs. Clements, Goldberg, and Lane

Local Water Issues

–Shortages• Drinking• Ecological

–Contamination and runoff• Levels of nitrogen and phosphorous• Algal blooms

–Reduce freshwater consumption

–Promote conservation/sustainability

Local Water Solutions

EPA Student Design Competition

P3: People, Prosperity, Planet

-Guidelines-Application-Goals

http://www.epa.gov/P3/

Greywater–Wastewater produced by bathtubs,

sinks, and washing machines –Low levels of suspended solids and

turbidity–75% of household wastewater is grey–Possible uses

• Car washing• Ornamental fountains/ponds• Irrigation

Examples of Greywater Systems

• Simple– Sink to toilet

• Advanced

Our Design• Residential apartment building• Collect water from

–Washing machines–Rain gutters–Air-conditioning units

• Storage• Irrigation

–Demonstration garden

Apartment Building 6Features

–Conveniently located–Laundry room attached–Large grassy area for garden

How Much Water?

• Laundry • Rainfall• AC Condensate

Laundry Room

• Washing machine–Usage: 8064 gallons per day–Existing water disposal

Rainfall536.3 gallons per day

Rainfall

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JAN FE

BMAR AP

RMAY JU

N JULAUG SE

POCT

NOV

DEC

Average Monthly Rainfall In Jacksonville

Inch

es

Air Conditioning Condensate–Amount?–Collection

• Storage tank• Preventing anoxia• Preventing overflow• Filters

Water Storage

12 ft

15 ft

Site Plan

Future Plans

System Design

Water Monitoring

• Phosphorus• High pH

• 6.6 – 7.5 Neutral• 7.6 - 7.8 Mildly alkaline• 7.9 – 8.5 Alkaline

• Salinity

• Soil– Nutrients– pH– Grain size

• Plants– Alkaline tolerant– Native perennials

Garden Planning

(Blue Phlox) (Arizona Sun) (Little Lanterns)

Mimosa strigillosa Zamia integrifolia Lantana depresa (Mimosa) (Coontie, Florida arrow root) (Lantana pineland)

Phlox divaricata Gaillardia grandiflora Aquilegia canadensis

(Rain Lily) (Beauty Berry) (Beauty Berry)

Habranthus biflorus Callicarpa americana Callicarpa americana

Garden Design

Garden Design

s Next Steps

• Complete design specifications• Permitting• Web Site• Building and installation• Unveiling and demonstration

Rainfall Calculation

• Area of roof * (Avg rainfall in inches / 12 inches per foot)– 6000 sq ft * (52.34 in/yr / 12) = 26,170 ft of

rain/yr

• Rainfall in feet * 7.48 gallons per cubic foot – 26,170 ft * 7.48 = 195,751.6 gallons per year

• Yearly rainfall / 365 days per year– 195,751.6 gallons / 365 = 536.3058 gallons

per day