Systems, apparatus, and methods for algae control system using a carbon nanotube sonic generator

A system for algae control comprising:

• a sound projector comprising:
• a freestanding carbon nanotube film;
• two plates that form an acoustical cavity, wherein the freestanding carbon nanotube film is between the two plates;
• and
• an inert gas medium in the acoustical cavity;
• a controller electrically coupled to the sound projector, comprising:
• a pulse generator;
• a pulse width controlling unit electrically coupled to the pulse generator;
• and
• feedback circuitry coupled to the pulse width controlling unit and configured to control a frequency of vibration of the two plates.

A method for algae removal, the method comprising:

• emitting wide-band, omnidirectional sound waves from a sound transducer assembly, the sound transducer assembly comprising a freestanding carbon nanotube film encapsulated in inert gas medium between at least two plates;
• and
• exciting the sound transducer assembly by short electrical pulses to activate a wide-band vibration of the at least two plates, using a driver circuit electrically connected to the sound transducer assembly,
• wherein the driver circuit further comprises feedback circuitry to select approximately a resonance frequency of at least one of the at least two plates.