1

Flintenbreite

Dipl. Ing. Andrea Albold OtterWasser GmbH, Lübeck, Germany

www.otterwasser.de

Urban Drainage and Wastewater Construction of a wwtp for a vegetable wholesaler

Ohlendorf, 2007 - 2008

Rehabilitation of the wastewater pond Woltersdorf Authority Woltersdorf 2005-2006

Wastewater management strategy for decentraliced regions e.g. Authority Rethwisch – 2006-2007

Construction of a nitrification stage after an existing pond System Authority Hamwarde 2011

Stormwater management system Rehabilitation Center Malente BfA – Cooperation with Kühlert-ter Balk 2005-2006

Wastewater Treatment plant for a „Solar boat filling station“, Valdivia Chile Luri Water Systems, 2010/2011

2

Projects outside of the European Community

Community-based Water Use in Water Scarce Areas - Improvement of the water management in Amran Basin cooperation with GFA – 2007-2011

Introdution of ecological sanitation in Low-Cost Buildings in Ethiopia PPP-Project with GTZ – 2006-2007

Integrated Water Management for the Oasis Béni Abbès, Algeria Cooperation with AHT, Essen - 2005–2008

Ecological Sanitation Ulaan Bataar, Mongolei GTZ – 2006

Support for the Introduction of Ecological Sanitation, PADEAR Bénin PADEAR GTZ/KfW, 2004-2007

Conceptual phase Ecological Sanitation Yemen KfW, 2003-2004

.......

Integrated technologies Concept and design of the wastewater technology for the

residential area Flintenbreite, Lübeck infranova GmbH & Co. KG - 1999

Operation of the integrated service concept infranova GmbH & Co. KG – since 2002

Wastewater concept SolarCity Linz Pichling, Österreich Strategy and design Linz Service GmbH – 1999-2006

Consultancy of the EU-Life Project Sanitary Concepts for Separate Treatment of urine, faeces and grey water (SCST) KompetenzZentrum Wasser, Berlin – 2003-2006

Design of the wastewater facilities with urine separation Emscherquellhof Emschergenossenschaft, Essen – 2005-2006

Design of the wastewater treatment plant of different huts in montainous regions Göppinger-Hütte, Mannheimer-Hütte, Oberzalim-Hütte Deutscher Alpenverein – seit 2003

.......

3

Project area

Total area 5,4 ha (54.000 m²)

At the outskirts of Lübeck

Good infrastructure (School, Shopping, etc.)

Low distances to highway and station

Characteristics

Buildings designed as low energy consuming houses

Ecological materials have impact on energy and material flows during buildings life cycle

All consumption data of the houses are known because of the installation of meters

Infrastructure system is operated by a private company and recharged by fee calculations

Here focus only on water and wastewater related issues.

4

Project‘s History

Residential area in the city of Luebeck (Atot = 5.4 ha)

Project was a winner of a competition in urban development for an ecological housing estate (1995)

Integrated infrastructure system was one of the key issues for the decision Private operating infrastructure

company

(operation of wastewater treatment system and

operation of all other medias supplying the houses)

Project started in 1999 designed for 117 units

Interruption at 30 units in 2000

Operation of the infrastructure systems since 8 years

Flintenbreite (design phase I)

Ecological Housing estate for approx. 350 inhabitants

Integrated inftrastructure system

Planned: 45 terraced houses 56 flats 12 twin houses 4 flats in the central building

Central building for the technical facilities and a meeting room

Private company for the infrastructure system (infranova)

5

Specialities I

Private area

Own infrastructure system and operation company

The system of the integrated infrastructure is part of the development plan

No connection of the houses to public systems (water, energy, wastewater etc.)

House owners have only contracts with the private company not with public suppliers

Own calculation of the operation costs for the inhabitants

Wastewater system with the intention of low water consumption and the reuse of nutrients (as fertiliser)

Current

Situation

Infrastructure is mainly finished

26 terraced houses 12 twin houses Central building with 4 flats

116 inhabitants

All facilities for the technical operation are finished and in operation since 2000

Ongoing: Construction of 46 terraced houses and 12 flats

5.00

5 .00

5.75

5.75

5.75

5.75

5.00

5.0

0

5.75

5 .7 5

5.00

5.0 0

5.00

5.00

5.75

5.75

5.75

5.7 5

3.00

3.00

5.75

5.75

5.00

5.00

4 RH, 14 St.

M.

M.

M .

M .

M .

M.

M.

M.

M.

M.

GESAMT 55 NEUE REIHENHÄUSER, 2 3-SPÄNNER à 6 WE UND 102 STELLPLÄTZE

FÜR 55 NEUE REIHENHÄUSER

14 ALTE REIHENHÄUSER

12 WOHNUNGEN

21 BESUCHER UND DAS

GEMEINSCHAFTSHAUS

10 RH, 6 St.

4 RH, 5 St.

6 WE, 8 St.

8 RH

, 7 St.5 R

H, 7 St.

4 RH

, 7 St.4 St.

6 WE, 8 St.

6 RH, 7 St.

3 RH

, 14 St.

M .

5 RH, 7 St.

6 RH, 7 St.

INDEX D ATUM ART DER ÄNDERUNG

ÄN DERUNGEN

NAM E DATUM INDEX ST CK EMPFÄN GER

PLANVERTEILUNG

PROJEKTTRÄGER :

ARCHITEKTEN :

BLATT NR. :

MASSSTAB :

DR. - JULIUS - LEBER - STRASSE 71

ARCHITEKTEN DIPL.-ING. GOTHE, STEEN + TIETZ PARTNERSCHAFT

23552 LÜBECK TEL. 0451 / 77422 FAX 0451 / 77442

G EZ . : LASS

G EPR . :

L ÜBECK, DEN 3 1.05.20 06

REIHENHAUSSIEDLUNG FLINTENBREITE, 23554 LÜBECK

LAGEPLAN

M.

4 RH, 14

St.

M.

M.

M.

M .

M.

M.

M.

M.

M.

M.

M ulde 7

Mulde 6

Mu ld

e 4

Mulde 5

a

Mulde 8

Mulde 9

Mulde 10 M ul de 5b

Mulde

5c

10 RH, 6 St.

4 RH, 5 St.

6 WE, 8 S

t .

8 RH, 7 S

t.

5 RH, 7 St.

4 RH, 7 S

t.

4 St.

6 WE, 8

St.

6 RH, 7 St.

3 RH, 1

4 St.

M .

5 RH, 7 St .

6 RH, 7 St.

ABWASSER-

TECHNIK :

En gels gru be 81

D -2 3552 L übec k

(+ 49)0 451-7 0200- 51

in fo@ ott erw as se r .de

OtterWasserGmb H -5 2

infranova Bauentwicklungs-GmbH & Co. KG

Flintenbreite 423554 Lübeck

G EZ EICH NET : DLABACS, 07.12.2006

G EÄN DER T : DLABAC S, 25.05. 2007

G EÄN DER T:

E

F

D

C

C

C1

C5

C6

C10

B

M

A

L

K

J

I

GH6

N

O

A1

A9

B1

B9

D1

D8

E1

E5

F1F4

I1

J5

K1

L6

M3

M1

L1

K6

J1

I4

H1

H2

H3

H4

H5

M.

Plotten: 640 x 910; Faktor 1

6

Flintenbreite

Twin houses

Terraced houses

Community Building

Buildings

House areas of 110 – 164 m²

Use of ecological building materials (with certification)

Construction of the houses with reduction of the outer suface

Low energy houses (energy consumption < 70 kWh/(m²*a))

7

Sanitation concept

Kitchen Vacuum toilet Bathroom,

Washing machine Stormwater

Storage

Agriculture

Central

vacuum station

Blackwater

Hygienisation Shredder

Organic

waste

Creek

Constructed

wetland

Greywater

Swale

infiltration

Groundwater Biogasplant

Energy and

heat from

Biogas

Stormwater

Lab scale

Pipe System

Electricity and

Communication

Heat distribution

from Heat/Power Unit

Drinking

Water Supply

Vacuum Pipe

8

Energy conception

Central Energy supply system

Production of electricity and heat by a combined heat and power unit (CHPU)

Operation of the CHPU either with natural gas or biogas

Peak heatage production by burners

Surplus of electricity is feeded into the public grid

Units for Energy Supply

9

Rainwater

Water consumption Wohnsiedlung Flintenbreite

Trinkwasserverbrauch

0

20

40

60

80

100

120

140

01

.10

.20

00

26

.11

.20

00

21

.01

.20

01

18

.03

.20

01

13

.05

.20

01

08

.07

.20

01

02

.09

.20

01

28

.10

.20

01

23

.12

.20

01

17

.02

.20

02

14

.04

.20

02

09

.06

.20

02

04

.08

.20

02

29

.09

.20

02

24

.11

.20

02

19

.01

.20

03

16

.03

.20

03

11

.05

.20

03

06

.07

.20

03

31

.08

.20

03

26

.10

.20

03

21

.12

.20

03

15

.02

.20

04

11

.04

.20

04

06

.06

.20

04

01

.08

.20

04

26

.09

.20

04

21

.11

.20

04

16

.01

.20

05

13

.03

.20

05

08

.05

.20

05

03

.07

.20

05

28

.08

.20

05

23

.10

.20

05

18

.12

.20

05

12

.02

.20

06

09

.04

.20

06

04

.06

.20

06

30

.07

.20

06

24

.09

.20

06

19

.11

.20

06

14

.01

.20

07

11

.03

.20

07

06

.05

.20

07

01

.07

.20

07

26

.08

.20

07

21

.10

.20

07

16

.12

.20

07

10

.02

.20

08

Ablesedatum

Ve

rbra

uc

h T

W [

l/(E

*d)]

Spez. TW Verbrauch

gleitendes Mittel (8 Werte)

Durchschnitt bundesweit

bundesweiter Durchschnitt 129 l/E*d

10

Design constructed wetland

Composition of greywater

Influent Effluent

Parameter Unit Average Range

(min-max) Average

Range (min-max)

Volume L/(cap•d) 60 50 - 120

BOD5 g/m³ 156 136 – 194 6 1 – 14

Org

anic

m

atter

COD g/m³ 426 258 – 584 41 6 – 73

N g/m³ 11 8 – 17 3.6 1.2 – 5.7

Ptot g/m³ 6.2 4 – 10 4.5 1.2 – 6.8

Nu

trie

nts

PO4-P g/m³ 5.0 3 - 8 3.9 2.8 – 5.1

11

Sludge from greywater

Greywater contains sludge

Solid removal important for

biological treatment

Colour:

upper part: white – grey

lower part: dark

Sludge volume:

approx.

42 l/(cap*a)

Desludging

interval:

5 – 6 years

Vacuum toilet

• Significantly lower water consumption

• Effective source separation

• Only few operational problems and

disturbances

• High acceptance by the residents

12

Elements of vacuum system

Vacuum toilet

Vacuum pipe (Ø 40 - 50 mm)

Vacuum pipe (Ø 50 – 63 mm)

Vacuum station

Vacuumstation

Vacuumstation

Biowaste grinder

Hygienisation

Mixing tank

13

Volume Blackwater

FlintenbreiteVolume Blackwater

0

2

4

6

8

10

12

01.

10.2

000

26.

11.2

000

21.

01.2

001

18.

03.2

001

13.

05.2

001

08.

07.2

001

02.

09.2

001

28.

10.2

001

23.

12.2

001

17.

02.2

002

14.

04.2

002

09.

06.2

002

04.

08.2

002

29.

09.2

002

24.

11.2

002

19.

01.2

003

16.

03.2

003

11.

05.2

003

06.

07.2

003

31.

08.2

003

26.

10.2

003

21.

12.2

003

15.

02.2

004

11.

04.2

004

06.

06.2

004

01.

08.2

004

26.

09.2

004

21.

11.2

004

16.

01.2

005

13.

03.2

005

08.

05.2

005

03.

07.2

005

28.

08.2

005

Datum

Vo

lum

e B

lackw

ate

r [l

/(P

ers

*d]

Volume Blackwater Average

Energy consumption Vacuum

Energy consumption Vacuum-station

0,00

0,10

0,20

0,30

0,40

0,50

0,60

0,70

01

.10

.20

00

26

.11

.20

00

21

.01

.20

01

18

.03

.20

01

13

.05

.20

01

08

.07

.20

01

02

.09

.20

01

28

.10

.20

01

23

.12

.20

01

17

.02

.20

02

14

.04

.20

02

09

.06

.20

02

04

.08

.20

02

29

.09

.20

02

24

.11

.20

02

19

.01

.20

03

16

.03

.20

03

11

.05

.20

03

06

.07

.20

03

31

.08

.20

03

26

.10

.20

03

21

.12

.20

03

15

.02

.20

04

11

.04

.20

04

06

.06

.20

04

01

.08

.20

04

26

.09

.20

04

21

.11

.20

04

16

.01

.20

05

13

.03

.20

05

08

.05

.20

05

03

.07

.20

05

28

.08

.20

05

Ele

ctr

icit

y [

kW

h/P

ers

*d]

14

Expected results for the biogas plant in

Flintenbreite

• Energy production from blackwater:

45 kWh/(p*a)

• Energy production overall

=> 18 MWh/a (45 MWh/a with additon of

organic waste)

5 - 10% of the overall energy consumption

can be covered by the biogas plant

Blackwater5 l/(Pers*d)

Volumes and loads of Grey- and Blackwater

KPN 0,8 g/(Pers*d)

0,5 g/(Pers*d)

0,2 g/(Pers*d)

Greywater65 l/(Pers*d)

COD37 g/(Pers*d)

KP

N 8,6 g/(Pers*d)

1,2 g/(Pers*d)

0,7 g/(Pers*d)

COD 60 g/(Pers*d)

15

Conclusion

Source separation very effective

Most of the inhabitants recognize the benefits of the

vacuum toilet-system; development of the toilets is

wanted

Experience may decrease the effort for maintenance

Minor technical modifications of the vacuum system

have been necessary

Operation costs of integrated infrastructure system

approx. 20 % lower than for conventional system

(Lübeck Flintenbreite)

Potentials

Saving of drinking water by the use of vacuum-toilets

and installations with less water consumption

Utilization of the energy of the blackwater with the

biogas technology

Utilization of the nutrients from the blackwater and

biowaste after anaerobic treatment

Very low effluent values of the greywater after

treatment

Very efficient separation of the nutrients

16

Kiitos huomiota