ecosan demonstration project within the GTZ headquarters main office building, Germany

Transcription

1 ecosan demonstration project within the GTZ headquarters main office building, Germany Arne Panesar, Christine Werner Deutsche Gesellschaft für Technische Zusammenarbeit (GTZ) GmbH ecosan program, division 44 environment and infrastructure HMULV, , Frankfurt 1

2 ecological sanitation a new approach increased soil fertility agricultu ral use food manure/ organic waste rainwater harvesting faeces urine treatment / greywater hygienization /energy production water reuse no waste disposal in water bodies Improvement of health by minimizing the introduction of pathogens from human excrements into the water cycle Promotion of safe recovery and use of nutrients, organics, trace elements, water and energy Preservation of soil fertility and improvment of agricultural productivity Conservation of resources Preference for modular, decentralised systems for more appropriate, cost-efficient solutions Promotion of a holistic, interdisciplinary approach Material flow cycle instead of disposal HMULV, , Frankfurt 2

3 overview of technologies for ecosan systems solid biowaste faeces urine greywater rainwater Vacuum sewer age collection Gravity sewerage (conv. or small Solid -liquid separation Urine diversion -bore, centr. or decentr.) Separate greywater collection Rainwater harvesting Composting toilets Dehydration toilets treatment utilisation Composting, vermi -composting Anaerobic treatment Biogas use for lightning, cooking, electric power Sludge dehydration, soilification Soil conditionning with treated Excreta and Solid Biowaste (Prolonged) storage Reuse of (treated) wastewater in agricu lture, aquaculture, epuvalisation, etc. Urine processing Waste water treatment (centralised or decentr.) Fertilizing with Urine or derivates Constructed wetlands, ponds, bio - treatment, etc. Rainwater treatment Greywater gardens, mulch trench systems (Re) -Use as service water or in agriculture, aquaculture, ground water recharge etc. gtz, 2006 HMULV, , Frankfurt 3

4 new WHO guidelines for the safe use of wastewater, excreta and greywater (2006) With the new guidelines the WHO...recognizes that the reuse of wastewater, greywater and excreta in agriculture and aquaculture is practiced worldwide on a large scale, however often without sufficient health production measures recognizes the importance of reuse of wastewater, greywater and excreta for sustainable food production and improved livelihood recognizes source-separation as a special and valid approach which can contribute to risk reduction provides guidance on health protection measures for safe reuse HMULV, , Frankfurt 4

5 Guideline for capacity building in ecological sanitation (UNESCO-IHP / GTZ, 2006) Capacity building for ecological Sanitation publication Published in 2006 by the International Hydrological Programme (IHP) of UNESCO and Deutsche Gesellschaft für Technische Zusammenarbeit GmbH can be downloaded from can be ordered from BMZ/GTZ ecosan programme ecosan@gtz.de HMULV, , Frankfurt 5

6 capacity building in ecological sanitation (GTZ, 2006) capacity building for ecological sanitation CD-ROM / www The CD-ROM / www material collection capacity building for ecological sanitation follows the open-source concept for capacity building and nonprofit use and is the result of the joint effort of many institutions. It provides support for academic institutes, training organisations and individuals in developing training and education material for ecological sanitation. HMULV, , Frankfurt 6

7 up-dating the ecosan material collection ecosan curriculum 2.1 CD-ROM The CD-ROM ecosan curriculum 2.0 follows the open-source concept. It is meant for university and college teachers and students, but also planners, architects, engineers, investors, all kinds of decision making bodies or simply for interested persons. To date, it is one of the first comprehensive collection of material on ecosan, and should enable readers to get a broad knowledge on this subject. HMULV, , Frankfurt 7

8 SuSanA sustainable sanitation alliance short statement joint road map current developments next meeting: SuSanA steering group meeting in Delhi HMULV, , Frankfurt 8

9 GTZ ecosan programme key activities of the GTZ-ecosan programme GTZ ecosan programme knowledge management and networking e-newsletter ecosan website Capacity building activities at schools and universities ecosan-project data sheets (in progress) ecosan-technologies data sheets (in progress) brochures, posters, professional articles, films, etc. conferences & workshops cooperation in the field national & international working groups ecosan pilot research and demonstration projects baseline and feasibility studies for sanitation systems, treatment and reuse systems advocacy and decision making workshops training workshops technical and operational advice for implementation accompanying research upscaling of projects and dissemination of experiences more than 40 pilot projects worldwide HMULV, , Frankfurt 9

10 ecosan in the GTZ main office building Background GTZ main office building had to be renovated (06/04-06/06) The building provides offices facilities for 650 employees, canteen, meeting rooms and conference facilities Opportunity to introduce a high comfort innovative urban ecosan system source: (ttsp-hwp-seidel GTZ main office building under construction (GTZ) New design of the GTZ main building HMULV, , Frankfurt 10

11 Objectives of the ecological sanitation concept in the GTZ office building Reduction of emissions (pathogens, organics, nutrients, micro contaminants, etc.) Protection of water resources Recovery of nutrients for agricultural use Demonstration of the ecosan concept in an urban context Contribution to the international dissemination of ecosan Research on technical, legal, economic, and social aspects Development of ecosan technologies and of operational concepts HMULV, , Frankfurt 11

12 Previous conventional system 2350 m³/a Service water Drinking water Rainwater 3000 m³/a 2700 m³/a 300 m³/a 550 m³/a 1400 m³/a 400 m³/a 1500 m³/a Blackwater Yellowwater Greywater Wastewater 6950 m³/a Sewarage, Sewage treatment HMULV, , Frankfurt 12

13 ecological sanitation concept - GTZ building prototype Service water (ground water) Implemented with financial support from the HMULV Hessisches Ministerium für Umwelt, Ländlichen Raum und Verbraucherschutz Drinking water Urine separation toilets and waterless urinals Kitchenettes and sanitary sinks Urine Urine storage MAP-pre cipitation, ammonia stripping MAP + ammonium Agricultural reuse Process water Activated sludge reactor + membrane filtration Excess sludge Treated effluent: Re-use as service water, irrigation, infiltration or direct discharge Greywater Sewerage and sewage treatment HMULV, , Frankfurt 13

14 Implementation at the GTZ office building separation toilets, waterless urinals, urine piping, storage tank, MAP-precipitation + ammiona stripping brownwater piping, activated sludge + membrane filtration HMULV, , Frankfurt 14

15 Technical components of the urine and brownwater reuse system Urine system Brownwater system 56 urine separation low flush toilets 25 waterless urinals, Separate urine pipes 10 m³ urine storage tank Urine treatment options (A) Prolonged storage for hygienization (B) MAP-precipitation and ammonia stripping Agricultural use of urine and urine products on research plots Separate brownwater pipes Biological treatment (activated sluge) + membrane filtration Agricultural use of excess sludge on research plots Use of treated effluent as service water (alternative uses: green irrigation, groundwater recharge or direct discharge) HMULV, , Frankfurt 15

16 Technical components at the gtz headquarter, main building, Germany urine separation toilet waterless urinal urine pipes storage tanks docking station for tank trucks source: gtz membrane unit technical components for collection and storage implemented at the gtz building (top) Precipitation treatment unit source: HUBER technical components for the treatment and reuse of urine and brownwater (side) HMULV, , Frankfurt 16 source: HUBER

17 The two Phases of the project ecosan Toilet carbine at the GTZ head quarters User information about urine separation toilets and waterless urinals Phase I Construction of urine separation system within the renovation works (financed by GTZ and supported by the Ministry of Environment of the State Hessen) implemented and in use Phase II Implementation of urine and brownwater treatment and reuse within a research project (to be financed by the German Federal Ministry for Education and Research) to be implemented HMULV, , Frankfurt 17

18 The two phases of the project HMULV, , Frankfurt 18

19 Scheme of flowstream separation, treatment and reuse human food urine diversion toilets waterless urinals urine storage tanks agricultural reuse urine brownwater service water (groundwater) nutrient extraction from urine brownwater treatment sanitised urine nutrients from urine nutrients and organics from brownwater treated, sanitised brownwater fertilisation refeeding into the water cycle HMULV, , Frankfurt 19

20 Research and capacity building Research component Development of technologies for urine and brownwater treatment and reuse practices Operation and maintenance Acceptance, environmental and health impact (particularly with regard to micro pollutants) Legal and economic aspects Resource efficiency Costs source: ROEDIGER Roediger No Mix - Toilet : functional scheme of flushing (Roediger) HMULV, , Frankfurt 20

21 Research and capacity building Capacity building component Ideal location for a demonstration project: daily visits of decision makers from all over the world Special demonstration room and guided tours Good complementarities with the ecosan project in the KfW building in Frankfurt (vacuum toilets and sewerage and greywater recycling) source: KfW visit of a delegation from China design model of the KfW building complex HMULV, , Frankfurt 21

22 ecosan demonstration project Demonstration of doing our ecosan- homework in the industrialised world as part of the GTZ development cooperation ecosan progam Demonstration of further environmental construction issues Posters showing the environmental impacts of the renovation HMULV, , Frankfurt 22

23 ecosan demonstration project Demonstration of new technological and management options for ecosan in a modern urban context: Decentralised and modular solution High tech ecological sanitation Autonomy possible: if combined with greywater treatment - no connection to sewer network required Model solution for: modern office buildings new urban settlements / extension areas situations where the extension of conventional sanitation infrastructure cannot keep pace with fast urbanisation Visions for ecosan in urban areas HMULV, , Frankfurt 23

24 Thank you very much for your attention! Source: GTZ Source: GTZ Source: GTZ Source: GTZ Source: GTZ For more information, please visit our website: HMULV, , Frankfurt 24