Can The Skin Be Used To Purify Water For Drinking?

Mycofiltrationis a technique that has been successfully used to treat wastewater in quantitiescomparable to the amount of sewage that would be produced from a singlehousehold. The method was developed byPaul Stamets for removing E. Coli from effluent and is able to achieve nearlyundetectable amounts of coliform in wastewater that has previously contained alevel of E. Coli that is higher than the legal limit. The process uses mushroom beds that arecolonized with mycelium fungus to trap and break down pollutants.

In additionto having the power to remove bacteria such as E. coli, studies on myceliumhave demonstrated the ability of the fungus to break down pollutants such ashydrocarbons, common oils, petroleum products, pesticides and PCBs. Certain fungal species can also capture cadmium,copper, lead, and mercury. Whilemycofiltration is currently used only for wastewater treatment, with newinnovations it may be possible to refine the filtration process so thatdrinking quality water will be produced. Mycofiltration offers a highly innovative system that can be naturallygrown, easily maintained, and highly effective at removing a large amount ofpathogens from potential drinking water.

With a layerof mycelium applied as a living roof, our structure could have a skin thatwould effectively catch and treat rainwater. The roof would be on a slight angle so that precipitation would notinitially run off, but would have time to slowly pass though the myceliumnetwork and be filtered into a collection device for storage.

Josh Van Wie

Update on Tuesday, November 17, 2009 at 4:06PM by Jessica Fuller

INTUITIVE Rankings for STRUCTURE submissions through the lens of WATER:

Grade: 9

Rank: 2nd

Comments

[Michael Wolcott]

Great idea and integration of biological system with water. The idea of using this for rainwater then integrates with the structure if we choose to harvest from the structure. I have a few questions that would have been good to flesh out a bit further:
1. What types of contaminants are present in rainwater and is this technique effective for removal of these to what level? Appropriate for gray water uses? Drinking water? Irrigation?
2. What is the size of such a unit required to filter water from a given area of roof on our site?
3. How might be the best way to implement such a technique on the structure? On the roof? In a separate filtration bed?

These are the type of specifications we should seek to use in augmenting great ideas like these.

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The process uses mushroom beds that arecolonized with mycelium fungus to trap and break down pollutants.sto credits