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WUS in Kassel4.11.2016
PAUL d M h ht f WPAUL – das Menschenrecht auf Wasser
The WaterBackpack “PAUL”The WaterBackpack PAULin Disasters and forPermanent SupplyPermanent Supply
GreenTecA d
Franz‐Bernd Frechen, IWA Fellow
Winner 2011 in the
AwardsWINNER2016
,Chair, IWA Specialist Group „Membrane
Technology“Chair, DWA Committee on „Membrane
Slide 1 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
category „society“Water & Sewage Bioreactors“
WUS in Kassel4.11.2016Das Menschenrecht auf Wasser und Sanitärversorgung
Das Menschenrecht auf Wasser und SanitärversorgungRESOLUTION 64/292 der UN‐Vollversammlung vom 28. Juli 2010
Die Generalversammlung ...1. erkennt das Recht auf einwandfreies und sauberes Trinkwasser und
Sanitärversorgung als ein Menschenrecht an, das unverzichtbar für den vollen Genuss des Lebens und aller Menschenrechte ist;
2. fordert die Staaten und die internationalen Organisationen auf, im Wege der internationalen Hilfe und Zusammenarbeit Finanzmittel bereitzustellen, Kapazitäten aufzubauen und Technologien weiterzugeben, insbesondere für die Entwicklungsländer, um die Anstrengungen zur Bereitstellung von einwandfreiem, sauberem, zugänglichem und erschwinglichem Trinkwasser und zur Sanitärversorgung für alle zu verstärken; ...
...aber: Da die Resolutionen der Generalversammlung für die 192 Staaten der Vereinten Nationen rechtlich nicht bindend sind, sind sie auch nicht einklagbar
Slide 2 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
einklagbar.
WUS in Kassel4.11.2016Sustainable Development Goals (SDG)
Slide 3 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
Quelle: http://www.un.org/sustainabledevelopment/sustainable‐development‐goals/
WUS in Kassel4.11.2016Facts and figures
2.6 billion people have gained access to improved drinking water sources since 1990, but 663 illi l till ith t 83% f th li i l663 million people are still without – 83% of them live in rural areasAt least 1.8 billion people globally use a source of drinking water that is fecallycontaminatedBetween 1990 and 2015, the proportion of the global population using an improvedBetween 1990 and 2015, the proportion of the global population using an improved drinking water source has increased from 76 per cent to 91 per cent But water scarcity affects more than 40 per cent of the global population and is projected to rise. Over 1.7 billion people are currently living in river basins where water use exceeds rechargerecharge2.4 billion people lack access to basic sanitation services, such as toilets or latrinesMore than 80 per cent of wastewater resulting from human activities is discharged into rivers or sea without any pollution removalEach day, nearly 1,000 children die due to preventable water and sanitation‐related diarrhoeal diseasesHydropower is the most important and widely‐used renewable source of energy and as of 2011 represented 16 per cent of total electricity production worldwide2011, represented 16 per cent of total electricity production worldwideApproximately 70 per cent of all water abstracted from rivers, lakes and aquifers is used for irrigationFloods and other water‐related disasters account for 70 per cent of all deaths related to
Slide 4 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
natural disastersQuelle: http://www.un.org/sustainabledevelopment/sustainable‐development‐goals/
WUS in Kassel4.11.2016Facts and figures
Countries with more than 15 mio. people in rural areas w/o
3,1% 4,9% 9,5%
access to safe water [% of country's total population]
China
22,3%41,4%
China
India
Indonesia
32,1%39,6%
Nigeria
Kenya
Tanzania
37,2%
Tanzania
Congo
Ethiopia
Slide 5 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
Quelle: http://www.wssinfo.org/data‐estimates/tables/
WUS in Kassel4.11.2016Facts and figures
Countries with more than 15 mio. people in rural areas w/o
150071947363407
p p /access to safe water [in 1,000] ‐ Total: 276 Mio.
1947324272
28183
63407 Kenya
Tanzania
Indonesia28183
40920
43743Indonesia
Congo
Ethiopia40920
40932Nigeria
China
IndiaIndia
Slide 6 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
Quelle: http://www.wssinfo.org/data‐estimates/tables/
WUS in Kassel4.11.2016Goal 6 targets
By 2030, achieve universal and equitable access to safe and affordable
Goal 6: Ensure access to water and sanitation for all
drinking water for allBy 2030, achieve access to adequate and equitable sanitation and hygiene for all and end open defecation, paying special attention to the needs of women and girls and those in vulnerable situationssituationsBy 2030, improve water quality by reducing pollution, eliminating dumping and minimizing release of hazardous chemicals and materials, halving the proportion of untreated wastewater and substantially increasing recycling and safe reuse globallyBy 2030, substantially increase water‐use efficiency across all sectors and ensure sustainable withdrawals and supply of freshwater to address water scarcity and substantially reduce the number of people suffering from water scarcityBy 2030, implement integrated water resources management at all levels, including through y , p g g , g gtransboundary cooperation as appropriateBy 2020, protect and restore water‐related ecosystems, including mountains, forests, wetlands, rivers, aquifers and lakesBy 2030 expand international cooperation and capacity building support to developingBy 2030, expand international cooperation and capacity‐building support to developing countries in water‐ and sanitation‐related activities and programmes, including water harvesting, desalination, water efficiency, wastewater treatment, recycling and reuse technologies
Slide 7 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
Support and strengthen the participation of local communities in improving water and sanitation management Quelle: http://www.un.org/sustainabledevelopment/water‐and‐sanitation/
WUS in Kassel4.11.2016Final remark on SDG goal 6: water
improved unimproved
663
0
7 000
8.000
9.000on
en
1 2691.186
1.025901
756663
5.000
6.000
7.000
en in
Millio
5.004 5.5376.118 6.638
8.5031.269
3.000
4.000
Men
sche
4.019 4.460 5.004
0
1.000
2.000
Anzahl
From 1990 to 2015, access to safe water was realized for 287,00 people daily We have to speed up: since 1st January 2016 until 2030, we have to increase
01990 1995 2000 2005 2010 2015 2020 2025 (2030)
Slide 8 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
We have to speed up: since 1 January 2016 until 2030, we have to increase this number to 340,000 people every day
WUS in Kassel4.11.2016
The original task of research, starting in 2001, was to create a small unit that
Concerning PAUL ...
provides potable water in emergencies, characterized by No energy needed No chemicals needed Simple & robust No or nearly no maintenance needed Operational even for illiterates h h h f b k k Lightweight and easily transportable, even hands‐free as a backpack Designed to help in emergencies and disasters
The result was the waterbackpack “PAUL”
Slide 9 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016WaterBackpack “PAUL” designed by DESEE:
starting 2001, at DESEE we designed the WaterBackpack “PAUL”, a small membrane ultrafiltration (UF) unit
membr area 9 5 m² 150 kDa membr. area 9.5 m², 150 kDa 1,200 L/d (1.2 tons) for 400
people in emergency and 60p p g ypeople as permanent supply
weight: 20 kg, 0.4 x 0.4 x1.1 m h i l l i i
0.80 mmax.
No chemicals, no electricity, operates with gravity
can be operated even by illiterates can be operated even by illiterates no maintenance during emergencies 6 or 12 on one Euro‐Palette
Slide 10 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
lifetime 10 years permanent supply
WUS in Kassel4.11.2016
no moving parts, no energy, no chemicals, no maintenance , extremely
The complete operation manual
robust, to be operated by anyone – even illiterates
See the complete operation manual!
Portable
AquaAqua
Unit for
L f
Slide 11 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
L ifesaving
WUS in Kassel4.11.2016bacteria removal
7V4
5
6
Value LRV
2
3
4ed
uctio
n‐V
Fresenius Fresenius Fresenius Fresenius Fresenius Fresenius0
1
Log‐Re
e.coli coliforme I.E. e.coli coliforme I.E.
ISO 9308‐1 ISO 9308‐1 ISO 7899‐2 ISO 9308‐1 ISO 9308‐1 ISO 7899‐2
PAUL A PAUL A PAUL A PAUL B PAUL B PAUL B
MiiMin 5,301 5,368 4,444 5,672 5,929 5,041Mittel 5,689 5,704 5,092 6,013 6,144 5,245Max 6,362 6,415 5,568 6,380 6,431 5,544
min
maxavg
Slide 12 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
analyzed by Institut Fresenius, Göttingen
WUS in Kassel4.11.2016virus removal (Federal Environment Agency UBA)
added virussesadded virusses
human adenovirusses
Slide 13 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
analyzed by Federal Environment Agency, Dessau/Roßlau
WUS in Kassel4.11.2016virus removal (Federal Environment Agency UBA)
total amount filtered in m³
feed: drinking water
Slide 14 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
analyzed by Federal Environment Agency, Dessau/Roßlau
WUS in Kassel4.11.2016heavy metal and AOX removal (2 grab samples!)
para‐meter
unitraw water
limit (German drinking water
d )
permeate P1
permeate P6
removal P1
removal P6meter water
ordnance)P1 P6 P1 P6
As µg/L 51 10 5.5 4.6 89.2% 91.0%Cd µg/L 29 5 0.11 1.3 99.6% 95.5%Cr µg/L 230 50 27 25 88.3% 89.1%Cu µg/L 500 2 000 7 390 98.6% 22.0%Hg µg/L 27 1 <0,2 <0,2 99.3% 99.3%Hg µg/L 27 1 0,2 0,2 99.3% 99.3%Ni µg/L 330 20 13 24 96.1% 92.7%Pb µg/L 69 10 < 2,5 < 2,5 99.6% 99.6%Zn µg/L 1 600 34 84 97 9% 94 8%Zn µg/L 1 600 ‐ 34 84 97.9% 94.8%AOX µg/L < 50 ‐ < 50 140 ‐ ‐
Slide 15 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
analyzed by Analytisches Labor KEB, Kassel
WUS in Kassel4.11.2016Disasters: e.g. Phillipines
Slide 16 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
© Christian Wagner
WUS in Kassel4.11.2016Disasters: e.g. Phillipines
Slide 17 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016PAUL worldwide
DR Congo: 20 Madagascar: 12Malaysia: 4 Mexico: 3
Mongolia: 13 2 197 PAUL
P ki t 255Cameroon: 10Kenya: 11
Kenya/Somalia: 31Colombia: 39Comoros: 13
Cuba: 12
stock HDL: 138
Malawi: 22Mali: 5
adagasca Mongolia: 13Mozambique: 3
Myanmar: 185Namibia: 1
Nepal: 251Niger: 11Ni i 5
2,197 PAULas of 26.08.2016
Pakistan: 255
Haiti: 171
India: 28Indonesia: 12
Cambodia: 7Cameroon: 10 Nepal: 251 Nigeria: 5
Pakistan: 256
Ghana: 148Guinea: 1
Haiti: 171Peru: 11Philippines: 170
United Kingdom: 2Guatemala: 1
Russia: 1Sambia: 1
Switzerland: 1
Vietnam: 132unknown: 99
Afghanistan: 14Ec ador 21
Eritrea: 7France: 1
Gambia: 26
Switzerland: 1Senegal: 1
Sierra Leone: 3Zimbabwe: 1
Somalia: 11St. Lucia: 2
South Sudan: 13Tanzania: 18Venezuela: 10
Slide 18 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
Egypt: 6Bénin: 10
Bolivia: 1
Bulgaria: 1Chile: 2Dom. Rep.: 1
Ecuador: 21 Swaziland: 1Taiwan: 2
Togo: 2Turkey/Syria: 6Hungary: 3
Uganda: 22Central African Republic: 2
WUS in Kassel4.11.2016Some organizations who brought PAUL into use
Stift lif
Slide 19 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
Stiftunglife
WUS in Kassel4.11.2016PAUL as permanent water supply
valve closed
top view side viewfront
valve open
sieve with valve incl floatsieve with valve incl. float,
Slide 20 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016PAUL Station as permanent water supply
Slide 21 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016PAUL Station as permanent water supply
Slide 22 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016PAUL Station as permanent water supply
Slide 23 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016PAUL Station as permanent water supply
Slide 24 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016PAUL Station as permanent water supply
Slide 25 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016Ghana – permanent supply
Slide 26 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016Ghana – permanent supply
Slide 27 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016Colombia – permanent supply
La GuajiraCundinamarca Nariño
Jagüey
E.coli [KbE/100ml] Trübung [NTU] Färbung [Pt/Co]Rohwasser PAUL Rohwasser PAUL Rohwasser PAUL
C/marca 20 0 8,90 0,01 7 1Cauca 6.000 0 7,83 0,01 39 1
Einsatzort
Slide 28 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
La Guajira 3.000 0 40,70 0,01 28 11Nariño 52 0 11,40 0,50 100 50
WUS in Kassel4.11.2016Nepal – permanent supply
Slide 29 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016India – permanent supply
Slide 30 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016India – permanent supply
Slide 31 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016India – permanent supply
Slide 32 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016India – permanent supply
Surface water twice per weekSurface water twice per week for one hour only
Slide 33 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016India – permanent supply
Slide 34 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016India – permanent supply
Slide 35 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016India – permanent supply
Slide 36 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016some additional but very important facts
PAUL is assembled at Kassel Disabled Workshop No spare parts import necessary, as no cartridges etc. must be
replaced on a regular basis Nowaste of resources concerning firewood as boiling the No waste of resources concerning firewood, as boiling the
water for disinfection is not necessary anymore Waste minimization, as water will no longer be supplied in g pp
plastic bottles Dramatically reduced cases of illness, thus l t d t ill less cost due to illness less cost due to inability to work less absence from school = improved educational opportunities
Local added value by creation of employment as plant manufacturer/water vendor/plant operator/maintenance worker – perfect for micro financing
Slide 37 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
worker perfect for micro financing
WUS in Kassel4.11.2016
usage for permanent supply: g p pp yhow to set up a local business
Slide 38 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016Initial information
Slide 39 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016Initial information
1 Jahr benutzbar 20 € pro Filter
PAUL zum Vergleich: um einen PAULgzu ersetzen:
30‐60 units (um 1.200 L/d aufzubereiten) 300‐600 units (für 10 Jahre) 300 600 units (für 10 Jahre) Das kostet 6.000 € bis 12.000 € PAUL: kostet 1.000 € (humanitär)
Slide 40 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016Remark on field inspections of PAUL
in practice, the daily flow is far beyond our design value of 1,200 L/d, up to 10,000 L/day (most in the range between 2,000 L/d and 6,000 L/d),
Measured 19 Sept. ’16in Puthanthurai:
43204800 4800 4824 5000
5400 5400
4000
5000
6000
d pe
r day
2,500 L/day Measured
20 Sept. ’161200
19202400
2880 28803323
2000
3000
4000Liter filtered
pin Pallam:>6,000 L/day
1200
0
1000
L
Slide 41 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
WUS in Kassel4.11.2016PAUL Station – expenses estimated
External cost (to be paid only once) PAUL Station Kit (includes PAUL unit, PCU, SV, V, OPS, PS, freshwater meter
and installation material):115,000 Rs*,
Transportation (ship): 5,000 Rs
Local cost Local cost Customs – depending upon country: 30,000 RsBuild up PAUL Station: 60,000 Rsi l l l t t RWT FWT t dincl. local transport, RWT, FWT, standsfor RWT, FWT & PAUL, hoses and parts,construction, pump, painting, start‐up,wages, instructions for usagewages, instructions for usageMaintenance 10 years 30,000 Rs
Total cost: 240,000 Rs(50% local)
= 3,000 €
Slide 42 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
(50% local) * Only valid for humanitarian usage!
WUS in Kassel4.11.2016PAUL Station – earnings and profit
Lifetime production: 1,200 L/d x 365 d x 10 a = 4,380,000 Liter One 20 L water can at the Tamil Nadu coastline costs 30 Rs:
1.5 Rs/Liter = 0.02 €/Liter Sell PAUL Station water for 1/3 of that price = 0.5 Rs/Liter Lifetime production is worth 4,380,00 x 0.5 = 2,190,000 Rs Lifetime profit is: 2,190,000 – 400,000 = 1,790,000 Rs = 22,375 € Or 179,000 Rs/year = 2,237 €/year O 14 917 R / h 186 €/ h Or 14,917 Rs/month = 186 €/month Payback period < 1.5 years
Why not operate 20 PAUL Stations (and become a water businesswoman / businessman ) ??
Slide 43 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
businesswoman / businessman ) ??
WUS in Kassel4.11.2016PAUL Station – savings in INDIA
This calculation was made by the Indian partners!
Slide 44 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
This calculation was made by the Indian partners!Source: terre des hommes India 2016
WUS in Kassel4.11.2016see also
www.uni‐kassel.de\fb14\siwawil dcloud: https://www.dropbox.com/sh/hcrg8fui0lttkqt/AAAcKt0m66p8JQdz19vtldbta?dl=0
i i hWinner 2011 in thecategory „society“
GreenTecAwardsWINNER2016
Water & Sewage
Slide 45 Department of Sanitary and Environmental Engineering (DESEE)
Head: Prof. Dr.‐Ing. F.‐B. Frechenwww.uni‐kassel.de/fb14/siwawi
© Humanity Care Foundation
Water & Sewage