Stackable acoustic treatment module

An acoustic treatment module stack, comprising:

• a plurality of stacked pipe segments, wherein each pipe segment includes:
• n ultrasound amplifier-transducers with an angular separation of (360/n)° on an outer circumference of the pipe segment, wherein n is a positive integer;
• and
• a reflector unit disposed in a center of the pipe segment that includes n reflectors wherein each ultrasound amplifier-transducer has a corresponding reflector positioned opposite of the ultrasound amplifier-transducer;
• wherein each acoustic treatment module is rotated (360/(n×m))° with respect to a preceding acoustic treatment module, wherein m is a positive integer, and the plurality of acoustic treatment modules includes at least m pipe segments.

An acoustic treatment module, comprising:

• a segment of a pipe;
• a plurality of reflectors symmetrically arranged on an outer circumference of the pipe segment;
• and
• a plurality of ultrasound amplifier-transducers disposed in a center of the pipe segment and held in place by a support structure, wherein each ultrasound amplifier-transducer is positioned opposite from a reflector,
• wherein said ultrasound amplifier-transducers are configured to emit ultrasound into the pipe segment while a fluid mixture is flowing therethrough, wherein a frequency of the ultrasound is configured to separate and coalesce particles from the fluid mixture.