Uh-Oh here comes the
Mutant Algae
Quote:
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Ultraviolet Radiation (UV): UV treatment triggers photochemical reaction of cellular nucleic acids. When a microorganism is exposed to UV radiation, the energy is absorbed by the organism’s DNA. If the organism receives a sufficient number of UV photons in a short period, covalent bonds form between adjacent bases in the DNA. The formation of these bonds prevents the organism’s DNA from being "unzipped" for replication, and the organism’s cells are unable to reproduce. For short-lived microorganisms (e.g., viruses, bacteria, and protists), this means that a sufficiently dosed community of microorganisms will die during or soon after treatment. If exposure is insufficient to kill all of the organisms, genetic mutation of surviving individuals, as well as subsequent generations, is possible.
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One of Althornin's links shows mutations at around 630 nm...I don't expect to investigate this yet...but it might be a good way to explain any failure to keep a clean system
Ben -Here is something on Cyanobacteria (blue-green algae) From the above link:
Examples:
Microcystis elebans, 2-6 µm
Spirulina subsalsa, 0.4-4 µm
Chroococcus limneticus, 6-12µm
where 1 µm = 10^-3 mm = 10^-6 m
These Guys are talking 25 µm Filtration...
Bacteria is similar in size, Viruses are an order of magnitude smaller. Then there is microflora?...I really need help here...
Does anyone actually know what biologicals are invading our systems?
If it was a fern -I wouldn't know...