When we started - ocw.un-ihe.org file0 0 0 20% Urin 0 m3 L 190 150 340 20% Urin 9 m3 L 4 4 8 90%...
Transcript of When we started - ocw.un-ihe.org file0 0 0 20% Urin 0 m3 L 190 150 340 20% Urin 9 m3 L 4 4 8 90%...
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Cycles in the ecological development of ValleyVi ewUniversity(VVU), Accra, Ghana
Valley View University , University of Hohenheim , Bauhaus-University Weimar, Palutec , Berger -Biotechn ik,
Ecological Engineering Society (IÖV): BMBF-Project
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
When we started :• No water-line, no well• No rainwater collection and usage
• Campus in the starting phase• Biggest private university• Reliable partners• Quick decisions• Sense for ecology
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
2001: water del ivered byVVU-truck
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Aim• Ecological cycles within a holistic and
sustainable concept of- Town planning- Mass flow management- Quality management
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
• Holistic Concept- Architecture, townplanning- Flow of matter, energy, information
• Sustainable function of VVU- Deep understanding heart & soul:
Commitment- Qualification: Training, courses, study- Acceptance, public relation- Adapted structure of VVU
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
New Ecological Masterpla n:Structure in space / Town planning
Bauhaus-Universität Weimar
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Nahrungsmittel RW m3kg
m3
RW 975 m3 / 975 m3 RW 0 m3 / 1032 m3 Urin 79 m3Regenwasser Nahrungsmittel
gesammelt TW 472 m3 TW 2.224 m3 SW 0 m3 Fläche m2 kgm3 Küche GW 374 m3 L
27 % GW 2.606 m3RW 519 m3 RW 0 m3
m3 M F Pers. Nutzung WC M F Pers. Nutzung WC Nährstoffe450 350 800 20% Urin 70 m3 L 50 34 84 80% Urin 0 m3 U Nährstoffbedarf
N 272 kg N -303 kgBedarf TW-Bedarf 440 m3 SW 426 m3 B TW-Bedarf 89 m3 SW 1.502 m3 U N 575 kg
Nahrungsmittel NW-Bedarf 487 m3 NW-Bedarf 2.135 m3 P 40 kg P 115 kg P -75 kg Nahrungsmittelkg RW-Speicher 100 m3 GW 55 m3 U Speicher 0 m3 GW 743 m3 U K 345 kg kg
Nutzung 9,2 Monate/Jahr Nutzung 11,8 Monate/Jahr K 207 kg K -138 kgW-spar- und Sep-toiletten, wl. Urinale Standardtoiletten
Nährstoffe Nährstoffe
N 193 kg N 151 kg
P 29 kg P 24 kg SW 1.210 m3 SW 1.210 m3
K 101 kg K 101 kgNährstoffe
Nkg
RW 0 m3 / 474 m3 RW 65 m3 / 521 m3 RW 0 m3 / 174 m3
Trinkwasser TW 0 m3 TW 180 m3 TW 80 m3berechnet P
m3 kgdiffuse Abnehmer RW 0 m3 RW 0 m3 RW 0 m3
m3 M F Pers. Nutzung WC M F Pers. Nutzung WC M F Pers. Nutzung WC0 0 0 20% Urin 0 m3 L 190 150 340 20% Urin 9 m3 L 4 4 8 90% Urin 0 m3 U
gesamt Km3 TW-Bedarf 0 m3 SW 0 m3 U TW-Bedarf 0 m3 SW 256 m3 B TW-Bedarf 55 m3 SW 82 m3 V kg
NW-Bedarf 0 m3 NW-Bedarf 245 m3 NW-Bedarf 25 m3RW-Speicher 0 m3 GW 0 m3 V Speicher 45 m3 GW 0 m3 U RW-Speicher 0 m3 GW 0 m3 U
Oyibi max. Nutzung 9,1 Monate/Jahr Nutzung 9,9 Monate/Jahr Nutzung 8,4 Monate/Jahrm3 W-spar- und Sep-toiletten, wl. Urinale W-spar- und Sep-toiletten, wl. Urinale Wasserspartoiletten
Nährstoffe Nährstoffe Nährstoffe
N 0 kg N 57 kg N 11 kg
P 0 kg P 7 kg P 2 kg
K 0 kg K 22 kg K 7 kg
RW 0 m3 / 521 m3 RW 0 m3 / 1032 m3 RW 417 m3 / 417 m3
TW 2.175 m3 TW 2.000 m3 TW 4.818 m3 Studentinnen gesamt 433Bewohnerinnen 252keine Bewohnerinnen 181
RW 0 m3 RW 0 m3 RW 0 m3M F Pers. Nutzung WC M F Pers. Nutzung WC M F Pers. Nutzung WC Studenten gesamt 795
151 0 151 60% Urin 0 m3 U 125 0 125 60% Urin 0 m3 U 0 252 252 60% Urin 0 m3 U Bewohner 276keine Bewohner 519
TW-Bedarf 0 m3 SW 588 m3 B TW-Bedarf 0 m3 SW 695 m3 B TW-Bedarf 0 m3 SW 2.330 m3 UNW-Bedarf 2.175 m3 NW-Bedarf 2.000 m3 NW-Bedarf 5.235 m3 Summe Studenten 1.228RW-Speicher 0 m3 GW 1.612 m3 U RW-Speicher 0 m3 GW 1.334 m3 U RW-Speicher 100 m3 GW 2.231 m3 LNutzung 9,1 Monate/Jahr Nutzung 9,1 Monate/Jahr Nutzung 9,1 Monate/Jahr Wohnhäuser 92reduzierte Standardtoiletten reduzierte Standardtoiletten Standardtoiletten Beschäftigte 80
Nährstoffe Nährstoffe Nährstoffegesamt Bewohner 620
N 146 kg N 145 kg N 292 kg gesamt keine Bewohner 780
P 24 kg P 23 kg P 46 kg gesamt 1.400
K 109 kg K 99 kg K 200 kg
Nutzung:Regenwasser Regenwasser Nährstoffe Landwirtschaft (L)Dachflächen Gesamtareal N P K Biogasanlage (B)
m3 m3 486 kg 76 kg 326 kg Vorort-Nutzung (V)32 % % Ungenutzt (U)
52.358
61.240
51.300
9.053
21.000
11.947
Staff Houses
130.000
ABFLUSS
nutzbar
-8.882 0
Landwirtschaft
Stoffstrombilanz VVU Accra 1.400 Personen
5.147
Dezember 2006
778.423
Guesthouses
0
Biogas plant
0
0
ungenutzt
ABFLUSS449
Men´s Dormitory
Personen 2006
Men´s Dormitory (Nortey) Women´s Dormitory
679.23687,3
Administration BuildingFaculty Building (A. Clark)
ZUFLUSS98.248
1.388
Cafeteria + Sanitary Blockmax. möglich
RegenwasserGesamtareal
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
m3
m3
Final Stage5.000 Persons
70%
Rainwater from roofs
Greywater
18.438 m3
m3
35.800
4.722
13%
46%
42%
12.315 m3
VVU
buildings
INPUT USAGE
21.384 m3
to roofs:
collected part:
Rainto agric area
98.248 m3
5.605 m3
691 m3
kg188.126
food
Urine
Blackwater
18.339 kg
Need for drinking water
Need for usage water
9.069 m3
Blackwater
7.671 m3m3
Greywater
7.883667.860 m3
Drinking water
RW roof area
EFFLUENT Not used
food
other users
28.124 m3
8.358
Rain water
778.423 m3
RW whole campus
whole campus
36.482 m3
Rainwater
26.964 m3Scenario with
Watersaving toiletsSeparating toiletswaterless urinalals
watersaving-fittingsgreywater collection
RegenwassernutzungBiogas plants
Mass-balance of flows for 5.000 people
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Conclusi on for water (5.000 People ):• Drinking water: high demand for supply• Demand can´t be fulfilled• Usage water: some areas need concern• Greywater: delivery to agric possible• Rainwater: storing!• Usage water: saving• Concerning cycles + townplanning
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
RW 417 m3 / 417 m3
TW 6.928 m3
RW 0 m3M F Pers. Nutzung WC0 252 252 90% Urin 0 m3 U
TW-Bedarf 907 m3 SW 3.972 m3 UNW-Bedarf 6.439 m3RW-Speicher 100 m3 GW 3.014 m3 VNutzung 9,5 Monate/JahrStandardtoiletten
Nährstoffe
N 998 kg
P 135 kg
K 447 kg
Women´s Dormitory
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
RW 474 m3 / 474 m3
TW 87 m3
RW 309 m3M F Pers. Nutzung WC
125 200 325 25% Urin 30 m3 L
TW-Bedarf 85 m3 SW 160 m3 UNW-Bedarf 167 m3RW-Speicher 40 m3 GW 85 m3 VNutzung 9,5 Monate/JahrW-spar- und Sep-toiletten, wl. Urinale
Nährstoffe
N 220 kg
P 30 kg
K 74 kg
Faculty Building (A. Clark)
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
New Sanitary Block• Design• Maintenance• Acceptance
New Eco -Buildings
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Urine-collection+transport
• Urine-tanks• Water-meters• Urine-transporter
Transport & Re- use
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Greywater and Urine
• Paw-Paw-Plantation• Bananas• Avocados
Re-use
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Faculty building An drew Clark
• Rainwater-Collection• Urin-Collection• Water-saving toilets & urinals
New Eco -Buildings
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
First training and introduction October 2003: Old and new toilets
Training & Information
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
QM: Acceptance of sanitar y products
- High with farmers in VVU´s surrounding (MA-interviews)- transportation + application by workers of VVU: no problems(University of Hohenheim)
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Warmwater bySolarplant Dec2005:
QM: Student- exchange Ghana - D
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Opening Circle
QM: VVU-Retreat February 2007: Heart & Spirit
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Ecocafe-Groups
QM: VVU-Retreat February 2007: Heart & Spirit
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
Appreciative Inquiry Step 4: Measures towards the Eco-Uni VVU
QM: VVU-Retreat February 2007: Heart & Spirit
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
All Participants assembled
QM: VVU-Retreat February 2007: Heart & Spirit
Cycles in the ecological development of Valley View ” University, Accra, Ghana. Gunther Geller & Seth Laryea. 33rd WEDC Conference, Accra, Ghana
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