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The Feasibility of Vacuum Sewer Implementation In Venice, Italy

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Santa Marta. Request of the city. Residential. Vacuum Sewers E'97. Option 1 ... Santa Marta Costs. Option 2. 290 million. Option 3. 534 million. Vacuum Sewers E'97 ... – PowerPoint PPT presentation

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Title: The Feasibility of Vacuum Sewer Implementation In Venice, Italy


1
The Feasibility of Vacuum Sewer Implementation In
Venice, Italy
  • Martin Felices, Lauren Goodfellow,
  • Jay Johnston, Sonali Maheshwary
  • Advisors Prof. John Zeugner, Ing. Fabio Carrera
  • Sponsor Alan Hassett, Oak Hill Company Ltd.

2
Purpose of the Study
  • To examine the feasibility of implementing the
    HIFLOTM vacuum sewer into the historical and
    marginal areas of Venice.
  • To collect data and gather information about
    vacuum sewer implementation in Venice.
  • To determine feasibility on a cost, applicability
    and social impact level.

3
Current Sewerage System Components
  • Sedimentation tanks
  • located within house foundations
  • separates the light and heavy sewage
  • Collettori
  • large brick or cement troughs
  • run underneath the streets
  • Sbocchi
  • sewage outlets located along the canal walls

4
Fognature Design
5
Current Failures of the Sewerage System in Venice
6
Plan of Renovation
  • City is divided into two areas
  • Repairs spanned over a duration of 23 years
  • Estimated cost 818 billion

7
Vacuum Sewers
8
HIFLOW TM
  • Patented by Alan Hassett
  • High-tech features
  • -Shallow pipelines
  • -Air tight
  • -High-lift
  • -OTS hardware

9
Section Breakdown
10
Test Sites
  • Santa Maria Formosa
  • Model for upscale
  • Historical area
  • Residential with some tourism
  • Santa Marta
  • Request of the city
  • Residential

11
Option 1
  • Vacuum piping within the canals surrounding the
    entire island

12
Option 1 (continued)
  • Interfaced at sbocchi where collettori decant
    into canals

13
Option 2
  • Vacuum piping alongside the collettori
  • Sewage valves placed at interceptor points as
    manholes in the streets

14
Option 3
  • Vacuum piping goes up underneath the house
    foundations
  • Sewage valves placed in the sedimentation tanks

15
Santa Maria Formosa Schematics
Option 2
Option 1
Option 3
16
Santa Maria Formosa Chart
17
Santa Maria FormosaCosts
Option 2 1.06 billion
Option 1 372 million
Option 3 1.4 billion
18
Santa Marta Schematics
Option 2
Option 3
19
Santa Marta Chart
20
Santa Marta Costs
Option 2 290 million
Option 3 534 million
21
Upscale Implementation
  • Water consumption is equivalent to the
    sewage flow
  • Collection tanks range from 13,000
    to 20,000 liters
  • 24 collection stations
    placed accordingly

22
Cost Analysis of Upscale Implementation
23
Social Impacts
  • Survey feedback
  • The sewerage system is failing (69)
  • Sewage treatment is desired (82)
  • A slight increase in noise would be acceptable
    (62)
  • A raise in taxes is opposed (77)

24
Relay Network System
  • Piping terminates
    at Ferrovia and
    Stazione Marittima
  • Ready to be pumped out of the
    city
  • Total cost for
    network 57 Billion
  • Designed for worst-case
    scenario

25
Pumping off of Venice
26
Conclusions
27
Conclusions (continued)
  • Option determination matrix was made
  • Total costs

28
Recommendations for Further Study
  • Relay network within Venice
  • Pumping sewage to the mainland
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