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Electronics Alga control

Bio-film grows and attracts algae to attach into its matrix. Initial bio-film formers are

anaerobic bacteria , that are aerobic during their planktonic stage where they seek new areas to colonize. The ultrasonic micro vibration gives these bacteria a sense of disturbances in nature; they do not colonize around micro vibrating areas. So they don't grow on the walls of the system. In normal operation without ultrasonic micro vibration, they colonize a surface and send out biochemical compounds that are recognized by other colony forming bacteria (a process known as quorum sensing). This micro vibration attracts the bacteria that then form a lipid matrix over the original colony, thereby cutting it off from oxygen. When that happens, the initial colony has achieved its purpose (no oxygen) and facultatively changes to its anaerobic state.

The ultrasonic micro vibration interrupts the process and prevents biofilm formation. Without an easy to attach to bio-film matrix, algae will not get a foothold to grow into the colony formers do not reproduce when they are in the planktonic state and any gel groups they may have formed will tend to declump and disperse.