Das Numen H20 is a modular system and research on biological sustainable water purification mechanisms aiming to provide free drinkable water from
local water resources and an aesthetic moment in cooperation with nature triggering contemplation and reflection on water related issues like water pollution
and waterpotability criteria, water prepa- ration, water availability, water monopolism and water privatisation processes.
The modularity of the system aims to be adaptable to new site specific challenges, like the different climate condi- tions, the individual pollution cocktail of
water and the energy resources found on the venues of its installation. This process of local adaptation offers invention potential for new filter steps to be
developed. So to say the setup and design wants to change due to the site specific needs, the modular system is confronted with. Its feedback triggering
research and development.
Mycelial Biofilter System
The announcement and implementation of a diploma thesis on the issue is intended as the field of mycofiltration is a relatively new and exciting field for scientific
research. One of the primary roles of fungi in an ecosystem is that of decomposition of organic compounds. Petroleum products, pesticides and herbicides, that
can be contaminants of soil, are organic molecules. Fungi therefore have potential to remove such pollutants from the soil environment, a process known as
Mycelium, Institut fr Raumexperimente, Januar 2011
Mycelial mats have been suggested (see Paul Stamets/ Growing Gourmet and Medicinal Mushrooms) - as biological filters, removing chemicals
and microorganisms from soil and water. The use of fungal mycelia to accomplish this has been termed ÒmycofiltrationÒ.
Mussel Biofilter System
Mentoring institutes: TU Dresden, Prof. Dr. rer. nat. Isolde Rske, Schsisches Textilforschungsinstitut e. V. (STDFI), Dipl. biologist Jens Mhlmann
The shell of D. polymorpha is triangular - or triagonal with a sharply pointed shell hinge end (umbo). The maximum size of D. polymorpha can be 5
centimetres, though individuals rarely exceed 4 cm (Mackie et al. 1989). Its most obvi- ous characteristic is the prominent dark and light banding
pattern on the shell which may be either smooth or zigzag in shape. The outer covering of the shell is generally well polished.
These mussels are filter feeders; they use their cilia to pull water into their shell cavity where it passes through an in- current siphon and it is
here that desirable particulate matter is removed. Each adult mussel is capable of filtering one or more liters of water each day, where they
remove phytoplankton, zooplankton, algae, and even their own veligers (Snyder et al., 1997). Zebra mussels are able to filter particles smaller
than 1μm in diameter, although they preferen- tially select larger particles (Sprung and Rose 1988). Thus bacteria may represent an important
ood source (Cotner et al. 1995, Silverman et al. 1996). Any undesirable particulate matter is bound with mucus, known as pseudofeces, and
ejected out the incurrent siphon. The particle-free water is then discharged out the excurrent siphon.
Technological Filter System
Mentoring institute: Holger Vorbrod, VORBROD BDT. Krcher und Abwassetechnik
Technical development of purification chain using the following tools:
fleece filtration, cyclone filtration, sand-/sedimental filtration, activated-carbon filtration, reverse-osmosis filtration
Physical Membrane Filtering System
Mentoring institut: University of Kassel, Prof. Dipl. Ing. Franz-Bernd Frechen, Dipl. Ing. Harald Exler
The Department of Sanitary and Environmental Engineering (DESEE) at University of Kassel developed a small, transportable and easy-to-use
drinking water unit based on membrane technology which is able to supply a group of 200 – 500 people with a minimum daily drinking water
demand of 7 liters per person. In remote regions and cases of disaster neither electricity nor chemicals for disinfection are available, thus a
gravity-driven microfiltration membrane was chosen to generate drinking water under these circumstances. The unit can be operated by
everyone meaning not only especially skilled and trained personnel.
We support the sustainable nature of easy-to-use, little energy consuming and almost no technical support demanding devices, thus are using
the same kind of gravity-driven microfiltration membrane system that is used in the described invention of the University of Kassel. Its design
will be especially adapted to our needs. As the last component of our modular filtration chain it will cleanse the biologically pre filtered water to
the quality of drinkable water.
an example of a tube-shaped polymer Hollow Fiber Membrane, used in the transportable filter unit developed by Prof. Dipl. Ing. Franz-Bernd Freche
Irrational Purification Tool
Mentoring and technical support: Hans-Rudolf Knfler, Museum fr Naturkunde, Leibniz-Institut fr Biodiversitts- und
Evolutionsforschung, Bereich Forschung Fachbereich Mineralogie Prparation
Das Numen H2O is part of the initiative BER LEBENSKUNST, a project initiated by the German Federal Cultural Foundation in cooperation with the Haus der Kulturen der Welt.