Water Demand and supply intro

UNIVERSITY OF STUTTGART

Introduction

1

Water Demand, Supply and

Distribution

Introduction

Dipl.-Ing. Ralf Minke, AOR

Institute for Sanitary Engineering,

Water Quality and Solid Waste Management (ISWA)

- Chair of Sanitary Engineering and Water Recycling -


Introduction

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Copyright

The slides of this file or presentation contain images which are

not quoted or which are quoted insufficiently. This presentation

is just intended for internal use as a learning aid. Principially

there is a copyright on the entire contents. The permission of the

author needs to be obtained before any further publishing.


Introduction

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Institute for Sanitary Engineering, Water Quality and Solid

Waste Management (ISWA)

Institute and Sewage Treatment Plant for Research and Education


Introduction

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Organisation of ISWA

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o. Prof. Dr. rer. nat. J. Metzger

Chair of Sanitary Engineering and Water Recycling

Chair of Waste Management and Emissions

Chair of Hydrochemistry and Hydrobiology

o. Prof. Dr.-Ing. H. Steinmetz o. Prof. Dr.-Ing. M. Kranert

Biological Air Purification

Prof. Dr. rer. nat. K.-H. Engesser

Solid Waste Management

Dr.-Ing. K. Fischer

Ressources Management and Industrial Recycling Dipl.-Ing. G. Hafner

Measuring and Air Pollution Control

Dr.-Ing. M. Reiser

Water Quality Management and Water Supply

Dipl.-Ing. R. Minke

Wastewater Technology

Dipl.-Ing. Reg.-Bm. C. Meyer

Industrial Water and Wastewater Technology

Dr.-Ing. U. Menzel

Hydrochemistry und Analytical

Quality Control AQC

Dr.Ing. M. Koch

Hydrobiology and Analytics of Organic Trace Compounds

Dr. rer. nat. B. Kuch

Sewage Treatment Plant for Research and Education Dipl.-Ing. P. Maurer

Administrative Office Dipl.-Ing. S. Mollweide

Urban Drainage

Dr.-Ing. U. Dittmer


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Your Motivation & Expectations ?


Introduction

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Modules for Water Supply & Water Quality Management

1. Semester 2. Semester

Mandatory

Elective

Special Aspects

of Urban

Water Management

Knig, Dittmer,

Minke

3. Semester

Water Treatment

& Water Quality

Management

Meyer, Steinmetz

Water and Power

Supply

Gerbersdorf, Minke

Sanitary

Engineering

Practical Class Kuch, Rapf, Minke,

Dobslaw, Clau

Planning and

Design of Water

Supply Facilities

Minke

Entwerfen von

Wasserversor-

gungsanlagen

Minke


Introduction

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Excursions for Water Supply & Water Quality Management

Short Excursions:

- Planning Area of Case Study in Planning and Design

- Water Supply Facilities in Sindelfingen or Stuttgart

One Day Excursions:

-Lake Constance Long Distance Supply System

(Zweckverband Bodenseewasserversorgung)

One Week Excursions:

- Visiting Water Supply & Wastewater Disposal Facilities in Austria/Slovakia, 2007

- Visiting Water Supply & Wastewater Disposal Facilities in Germany/France, 2009

- Visiting Water Supply & Wastewater Disposal Facilities in Ger, Lux, NL, 2011

- Visiting Water Supply & Wastewater Disposal Facilities in TCH and Ger, 2012

- Visiting Water Supply & Wastewater Disposal Facilities in France, 2015

A MUST!!!


Outline

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Outline

Day Monday; 11:45-13:15

Room V 2.21; ISWA, Bandtle 2

15.10.15 LECTURE: Introduction; Water Demand

19.10.15 LECTURE: Cont. Water Demand; Water Collection

29.10.15 LECTURE: Water Quality and Quality Requirements, Drinking Water Protection Areas

Handout of Presentation Topics, Formation of presentation groups

02.11.15 LECTURE: Water Supply Systems

09.11.15 LECTURE: Water Transmission and Distribution

16.11.15 LECTURE: Pumps, Pumping Stations, Power Boosters

23.11.15 LECTURE: Water Storage

30.11.15 CALCULATION EXERCISE: Water Demand Calculation & Design Quantities

07.12.15 CALCULATION EXERCISE: Dimensioning of Pressure-Pipelines, Characteristic Pipe Curves

14.12.15 CALCULATION EXERCISE: Dimensioning of Pumps, Characteristic Pump Curves

21.12.15 CALCULATION EXERCISE: Water Storage

Christmas Break

11.01.16 CALCULATION EXERCISE: Water Distribution (EPANET), (Rott)

18.01.16 Reserve

25.01.16 Students Presentations

01.02.16 Students Presentations

Outline

WiSe

15/16


Introduction

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Questions?

Consultations:

Dipl.-Ing. Minke ISWA, Room 0.004

Tel. 685-65423 [email protected]

Wednesday, 14:00 to 15:30

Water Demand, Supply and Distribution

Grading

Prerequisite:

Presentation of Topic (5 minutes per student): 0 %

Written examination, 60 minutes, closed book 100 %


Introduction

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Joining the Course and Infos


https: // ilias3.uni-stuttgart.de

Magazin >> Ingenieurwissenschaften >> Bauingenieurwesen >>

Lehrveranstaltungen WS 15/16 >> Water and Power Supply

Password: Not necessary

And every Friday afternooncheck mails and download presentations/exercises etc.


Introduction

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Course WDSD: Goals

Understanding of the fundamental Structure of Centralized Water Supply Systems (CWSS)

Understanding of the Hydraulic System of CWSS

Understanding of the Function and Structure of the single Elements of CWSS

Ability to Design and Calculate the single Elements of a CWSS


Introduction

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Students Presentations: Goals and Topics

Search for Additional Information in Literature, Internet

Combining Additional Information to Content of Lectures and Exercises

Comparing General and Specific Aspects for Design, Construction and Operation

of Water Supply Facilities

Presenting Facts and Findings in an Interesting Way..

Rules for Water Demand Calculation in different Countries

Unaccounted water for and Real Losses in different Countries

Rules/Examples for Design and Operation of Pumping Stations in different Countries

Rules/Examples for Design and Operation of Water Storage Tanks in different Countries

Rules/Systems for Metering, Pricing and Billing in different Countries


Introduction

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Water Demand, Supply and Distribution: Some Impressions


Introduction

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Wasserversorgung Impressionen Water Demand, Supply and Distribution: Some Impressions


Introduction

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Water Demand, Supply and Distribution: Some Impressions


Introduction

Qdmax Qhmax

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CWSS Overview

5 Elements of Centralized Water Supply Systems:

Collection Transport Treatment Storage - Distribution

Flow direction


Introduction

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Water Demand, Supply and Distribution Necessity for water supply? Necessity for water supply?

1) Human being needs water to survive:

drinking water: 3 10 [l/C*d]

2) People need water on health reasons:

drinking water, preparing food, wash up dishes, body care, washing of clothes, cleaning 15 25 [l/C*d]

3) People are claiming water with rising living standard:

2) PLUS Flushing toilets: 40 60 [l/C*d]

2) PLUS Flushing toilets, shower, bath: 80 [l/C*d]

2) PLUS 3) PLUS irrigation of gardens,

swimming pools, car washing: 100 600 [l/C*d]

4) People need water for activities:

agricultural irrigation: 400 1,700 [l/C*d] public and commercial activities: 50 - 200 [l/C*d]

industrial activities: 30 1,300 [l/C*d]


Introduction

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Water Demand, Supply and Distribution Necessity for water supply? Necessity for safe water supply?

Number of deaths

at Plauen because

of installation of

water supply and

sewerage system


Introduction

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A..Water Treatment improvement programme

B..Housing and electrification programme

C..Social security and medical care programme

D..Municipal water system installation programme

E..Rural water facilities programme


Introduction

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Impurities found in water Constituents of health significance:

Microorganisms Chemical substituents

Aesthetic parameters Technical parameters

Sources for impurities Source Treatment Transmission and storage Distribution

Basic requirements for drinking water Free from pathogenic organisms No compounds with negative effect on human health Clear, not salty, no bad taste or smell Not causing corrosion or encrustation of water supply system


Introduction

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Goal of Centralized Water Supply Systems:

Safe supply of all consumers round the clock with highest quality,

suitable quantity and pressure, low costs and minimized impact on

natural water cycle

Advantages:

Hygiene Safeguard of Supply Comfort Economy Socio-economic development Ecology


Introduction

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Influence on natural water cycle

Global figures:

World oceans evaporation 425,000 km/a

World oceans precipitation 385,000 km/a

Land evaporation 71,000 km/a

Land precipitation 111,000 km/a

Land runoff 71,000 km/a

Global drinking water demand:

~ 400 km/a


Introduction

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Water Supply today

Germany:

Small areas suffering water shortage long distance supply

Centralized water supply systems, Connected > 99 %

Safe supply of all consumers round the clock with highest quality, suitable quantity and pressure, low costs and minimized impact

on natural water cycle

Worldwide:

Mega-Cities in areas suffering water shortage

~ 50 % of worlds population has not enough drinking water

1.1 Billion people without access to well organized Water Supply

.. 5 Million people yearly die as a result of bad drinking water

or lack of drinking water (60 % children)

MDGs..


Introduction

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Water Supply tomorrow

Germany:

Climate Change

Demografic Change

Technical Progress

Worldwide:

?

?

?

?


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Literature

Taschenbuch der Wasserversorgung J. Mutschmann und F. Stimmelmayr

Vieweg Verlag

ISBN 3-528-22554-8

DVGW Regelwerk Technical Guidelines of

German Association of Gas and Water Branch

Urban Water Engineering and Management

Karamouz, Mohammad et al.:

Boca Raton: CRC Press, 2010.

ISBN 978-1-4398-1310-2

Environmental Engineering Salvato, Joseph A. et al.:

John Wiley & Sons, Hoboken, 2003.

ISBN 0-471-41813-7

Alternative Water Supply Systems Memon, Fayyaz Ali et al.:

IWA Publishing, 2015.

ISBN 978-1-7804-0550-6


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Homework

3 Questions at the end of each chapter:

1) Why is it necessary to have a safe 24/7 water supply?

2) Why only the last part of CWSS downpipe and distribution net- has to be dimensionend on base of Qhmax

whereas in others parts from intake till EST- we are free to dimension (and operate) on base of Qdmax ?

3) Check your basic knowledge in hydraulics for

understanding of water supply systems: Terms like

Hydraulic grade line, velocity head, pressure head etc.,

must be well known..

Water Demand and supply intro

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