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| luminous:lg_tu_day2 [2008-10-25 13:21] – 62.116.80.106 | luminous:lg_tu_day2 [2011-04-02 03:53] (current) – maja |
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| The second day of the Luminous Green workshop at Time's up began with a presentation by Folke Koebberling about using the city as a resource for artistic and architectural projects. The second speaker of the morning was Paul Schausberger, who talked about the industrial and small-scale water filtration - mainly for surface water (e.g. from rivers) and sea water (desalination). The afternoon at the harbour began with lifting up the windmill, testing the pump (albeit with an electromotor, as it's nearly wind still in the harbour at the moment), building the water filter and continuing the hot tub. A small expedition of city-resource finders embarked on an expedition to collect trash for a changing room and a shower (as filtering water for the tub wouldn't make much sense without cleansing the human bodies before they submerge themselves in it...). Already in the industrial zone, they found so much usable material, that they had to come back to the HQ, make a first delivery and then venture further afield. | The second day of the Luminous Green workshop at Time's up began with a presentation by Folke Koebberling about using the city as a resource for artistic and architectural projects. The second speaker of the morning was Paul Schausberger, who talked about the industrial and small-scale water filtration - mainly for surface water (e.g. from rivers) and sea water (desalination). The afternoon at the harbour began with lifting up the windmill, testing the pump (albeit with an electromotor, as it's nearly wind still in the harbour at the moment), building the water filter and continuing the hot tub. A small expedition of city-resource finders embarked on an expedition to collect trash for a changing room and a shower (as filtering water for the tub wouldn't make much sense without cleansing the human bodies before they submerge themselves in it...). Already in the industrial zone, they found so much usable material, that they had to come back to the HQ, make a first delivery and then venture further afield. Patrick & Theun conducted a memorable circus act by transporting a 6m piece of wood between two bikes for quite a long distance, across roads, down hills & across construction sites, while yelling "totaal holland!!". Upon arrival at the harbour at dusk, the duo proceeded to take a fresh dip in the freezing Danube. They, as well as the rest of the half-frozen team warmed up over the delicious concoctions from Marie's kitchen & most of us concluded the day with Theun's birthday cake & copious amounts of wine... |
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| === Folke Koebberling === | === Folke Koebberling === |
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| Folke described a work that she and Martin Kaltwasser realised next to the Gropiusstadt in Berlin – first a house, built in 24hrs (Hausbau 04) and later a whole settlement on an empty lot next to the highrises of Gropiusstadt. All material came from the street, as trash from a renovated house in Prenzlauer berg, an increasingly 'fancified' part of Berlin. It took only an afternoon to collect all the materials. The house they built was temporary, perceived almost as a 'fata-morgana' by the inhabitants of the nearby community. The settlement that they built the next year was a slightly longer term project, where it took three months to collect the materials. According to Folke, this was an interesting experiment, but aesthetically not too satisfying – it still had an appearance of a shanty-town. | Folke described a work that she and Martin Kaltwasser realised next to the Gropiusstadt in Berlin – first a house, built in 24hrs (Hausbau 04) and later a whole settlement on an empty lot next to the highrises of Gropiusstadt. All material came from the street, as trash from a renovated house in Prenzlauer berg, an increasingly 'fancified' part of Berlin. It took only an afternoon to collect all the materials. The house they built was temporary, perceived almost as a 'fata-morgana' by the inhabitants of the nearby community. The settlement that they built the next year was a slightly longer term project, where it took three months to collect the materials. According to Folke, this was an interesting experiment, but aesthetically not too satisfying – it still had an appearance of a shanty-town. |
| In surface water treatment, salt is not a problem. Instead there are many suspended particles, like mud and sand that need to be filtered. In addition to that, many microorganisms and other organic materials that can be damaging for humans need to be removed before the water can be used for human consumption. A technique called 'deep bed filtration' was discussed, that uses silicate sand, that has a high probability of reducing pollutants. The slower the filtration occurs, the cleaner the water will be. This technique will be used to make the water filter at Time's up, to purify the Danube water for bathing in the hot tub. | In surface water treatment, salt is not a problem. Instead there are many suspended particles, like mud and sand that need to be filtered. In addition to that, many microorganisms and other organic materials that can be damaging for humans need to be removed before the water can be used for human consumption. A technique called 'deep bed filtration' was discussed, that uses silicate sand, that has a high probability of reducing pollutants. The slower the filtration occurs, the cleaner the water will be. This technique will be used to make the water filter at Time's up, to purify the Danube water for bathing in the hot tub. |
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| Paul touched upon the geopolitical intricacies of water treatment, illustrating it with an example of the Danube water basin, which covers several nation states – from Germany, Austria, Hungary, Serbia, Bulgaria, etc. The water polluted closer to the source (say in Germany) will effect the water and its treatment down-stream. The Danube River Basin Management, which should comprise all countries on the Danube (and beyond – as the basin also includes several networks of groundwater) is in the making. We discussed that not just industrial pollutants, but also our own waste is extremely dangerous for the flora and fauna of the basin. An example was given of the concentration of the chemicals from contraception pills that make whole populations of fish infertile. Anti depressants and hard drugs such as cocaine were other big problems that were mentioned. | Paul touched upon the geopolitical intricacies of water treatment, illustrating it with an example of the Danube water basin, which covers several nation states – from Germany, Austria, Hungary, Serbia, Bulgaria, Romania, etc. The water polluted closer to the source (say in Germany) will effect the water and its treatment down-stream. The Danube River Basin Management, which should comprise all countries on the Danube (and beyond – as the basin also includes several networks of groundwater) is in the making. We discussed that not just industrial pollutants, but also our own waste is extremely dangerous for the flora and fauna of the basin. An example was given of the concentration of the chemicals from contraception pills that make whole populations of fish infertile. Anti depressants and hard drugs such as cocaine were other big problems that were mentioned. |
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| We concluded with a short discussion about the taste of water and the need for water tasting, not just in fancy restaurants, but on industrial fairs and cultural events. Another short discussion that followed was about the quality of bottled water (which doesn't contain chlorine, while almost all tap water does), that has its own problems – such as development of dangerous micro-organisms, leaching of toxic plastic components and the general 'freshness' of the water. Tap water can be stored in bottles for about six months (according to a Bristol-based water expert, a friend of Kate Rich): “light, heat and air are the potential problems. Less that the water will go bad but it will go flat & lose all its properties. Seal in glass as if jam, keep cool (refrigerate where possible) & dark should be fine for 6 months at least.” | We concluded with a short discussion about the taste of water and the need for water tasting, not just in fancy restaurants, but on industrial fairs and cultural events. Another short discussion that followed was about the quality of bottled water (which doesn't contain chlorine, while almost all tap water does), that has its own problems – such as development of dangerous micro-organisms, leaching of toxic plastic components and the general 'freshness' of the water. Tap water can be stored in bottles for about six months (according to a Bristol-based water expert, a friend of Kate Rich): “light, heat and air are the potential problems. Less that the water will go bad but it will go flat & lose all its properties. Seal in glass as if jam, keep cool (refrigerate where possible) & dark should be fine for 6 months at least.” |
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| | {{:luminous:luminousgreen_water.pdf|Paul's slides on water treatment}} |
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| | Paul's recommended self-engineered water treatment system: http://www.oasisdesign.net/water/index.htm |
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| | [[:lecture_notes]] |
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