seecon gmbh society economy ecology consulting Sustainable Water

seecon gmbh society - economy - ecology - consulting Sustainable Water Management 1

seecon gmbh society - economy - ecology - consulting Worldwide 90 % of human excrements and urine go to rivers, lakes, to the sea and the ground water instead of being used for improving soil fertility ! 90 % Treatment only 10 % innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting Shortcomings of conventional water systems innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting Advantages of sustainable water management innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting The aims of sustainable water management Reducing water pollution and sewage Saving of scarce and expensive drinking water Using grey- and rainwater Cleaning wastewater by natural processes Recycling nutrients to agriculture for soil fertility Biomass energy production innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting 1 st step: Reduce sewage streams by saving water ! ! 2 nd step: Separate sewage streams ! 3 rd step: Close the nutrient cycle with Black water ! 4 th step: Clean and recycle grey water locally ! . . . leapfrog the age of sewage pipes ! innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting The first step: REDUCE SEWAGE STREAMS BY SAVING WATER ! innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting The overwelming part of sewage is clean water to sweap pollution away => save water ! innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting The second step: SEPARATE SEWAGE STREAMS ! innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting Sewage separation innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting Separate sewage water flows: Black water / grey water CHP = combined heat and power 11

seecon gmbh society - economy - ecology - consulting Proper separation of Black water from Grey water prevents infection ! CHP = combined heat and power 12

seecon gmbh society - economy - ecology - consulting The third step: CLOSE THE NUTRIENT CYCLE WITH BLACK WATER ! innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting Resources for soil fertility in Black water Annual discharge from one person: • Nitrogen (N) about 4, 5 kg • Phosphorus (P) about 0, 6 kg • Organic matter (BOD) a. 35 kg Total = about 40 kg 14 Quelle: Prof. Dr. Petter D. Jenssen, Norwegen

seecon gmbh society - economy - ecology - consulting Urine and excrements as fertilisers • Urine and excrement matter contain low levels of heavy metals • Hygienic quality can be achieved by proper handling • Organic micropollutants are degraded in soil systems and/or in biogas plants 15

seecon gmbh society - economy - ecology - consulting innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting Vacuum toilets = very low dilution ! 0. 5 - 1. 5 liters/flush Vakuumtoilette Spültoilette 17

Vacuum toilet seecon gmbh society - economy - ecology - consulting • Significantly lower water consumption • Effective collection of sewage • Not more operational problems than conventional flush toilets • High acceptance by the residents 18

seecon gmbh society - economy - ecology - consulting Vacuum toilet technology Vak. T well known from trains and ships ! 1660 vacuum toilets on one vessel = about 2 km of vacuum sewer line 19

seecon gmbh society - economy - ecology - consulting Vacuum toilets • Small diameter pipes • Piping independent of inclination Vacuum - 50 mm Gravity - 110 mm 20

seecon gmbh society - economy - ecology - consulting Closing the cycle by biogas production with low flush black water (excrements + urine) and organic wastes (gastronomy, household, garden, agriculture) Quelle: Genesys Gmb. H 21

seecon gmbh society - economy - ecology - consulting The forth step: CLEAN AND RECYCLE GREY WATER LOCALLY ! innovationen zur nachhaltigen entwicklung

Local cleaning of grey water seecon gmbh society - economy - ecology - consulting Re-using grey water: • irrigation • inhouse • process water • groundwater recharge • local discharge 23 Quelle: Prof. Dr. Petter D. Jenssen, Norwegen

seecon gmbh society - economy - ecology - consulting Production of biomass innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting Production of biomass Biomass = energy source, soil fertility, building material innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting constructed wetlands innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting For most purposes clean grey water will do ! Quelle: SVGW 27

seecon gmbh society - economy - ecology - consulting Sustainable Water Management offers economic, decentralised solutions for a good water future within the nutrient cycle… innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting 1 st step: Reduce sewage streams by saving water ! ! 2 nd step: Separate sewage streams ! 3 rd step: Close the nutrient cycle with Black water ! 4 th step: Clean and recycle grey water locally ! . . . leapfrog the age of sewage pipes ! innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting … but what about the • huge and terribly expensive sewage pipe systems and • mostly inadequate sewage treatment stations … to be built ? innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting LEAPFROG THE AGE OF SEWAGE PIPES! => go directly towards flexible, independent and economical sustainable water management ! innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting seecon gmbh society – economy – ecology – consulting So let’s do projects together: => here in South East Europe ! innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting seecon gmbh society – economy – ecology – consulting But where to find the resources for the projects ? ? ? innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting seecon gmbh society – economy – ecology – consulting Europe is the opportunity ! innovationen zur nachhaltigen entwicklung

seecon gmbh society - economy - ecology - consulting seecon gmbh society – economy – ecology – consulting Thank you for your attention ! Matthias Zimmermann mobile +41 79 646 02 78 www. seecon. ch innovationen zur nachhaltigen entwicklung