The Anguil Rotor Concentrator is one of the most cost-effective technologies for processing high volume, low concentration air streams. The process stream is passed through a filter which removes dust and other particulates. In the case of a greatly varying VOC concentration, the stream may pass through a carbon filter that creates a uniform concentration. From here it is directed to a rotary honeycomb wheel with an impregnated hydrophobic zeolite which adsorbs the VOCs. The clean air is then exhausted into the atmosphere. As the wheel is slowly rotated, it passes thorugh a regeneration section where the VOCs are desorbed in a small concentrated stream. The concentrated stream is diverted to a small thermal or catalytic incinerator which oxidizes the VOCs. An integral secondary heat exchanger supplies the desorption heat.