Tube air diffusers were developed and designed to adapt to various applications in municipal and industrial wastewater treatment plants. They are predominantly used for supplying the wastewater in the aeration tank with oxygen as well as for providing the efficient mixing of the aeration tank content with low power consumption. Dehydrators are intended for mechanical dewatering of industrial and municipal wastewater sludge. They are recommended for wastewater sludge dewatering on low-capacity municipal wastewater facilities.