Go to GlobalSpec.com Home
 

Toolbar   The Engineering Toolbar
The Ultimate Resource for Engineering and Technical Research. (Learn More)

Rotating Biological Contactors

About Rotating Biological Contactors

Rotating biological contactors are large discs on rotating shafts that are mounted in wastewater tanks, but only partly submerged. As the discs turn, the microorganisms on them repeatedly contact both air and the organic substances in the water. A rotating biological contactor can be used where wastewater is amenable to biological treatment. Rotating biological contactors can be used in many ways to accomplish varied degrees of carbonaceous or nitrogenous oxygen demand reductions. Rotating biological contactors are fixed-film reactors similar to biofilters in that organisms are attached to support media. The support media are the slowly rotating discs that are partially submerged in flowing wastewater in the reactor. A rotating discs contactor is an agitated column extractor that can carry out liquid-to-liquid extraction processes. The rotating disc contactor (RDC) is a vertical column, consisting of a series of compartments formed by stator rings. In the middle of each compartment a central shaft drives a rotor ring.

The proper selection of a wastewater treatment product involves the identification of a rotating biological disc supplier that has both theoretical and practical knowledge of designing wastewater treatment systems. Secondary treatment is a biological treatment process to remove dissolved organic matter from wastewater. One of the approaches used to accomplish secondary treatment is the use of fixed film system. Fixed film systems grow microorganisms on substrates such as rocks, sand or plastic. Trickling filters, rotating biological contactors, and sand filters are examples of fixed film systems. Immersed biological rotating discs that are mounted vertically on a horizontal rotating stainless steel shaft are used in the biological purification of sewage water.

More >>

Other Topics You Might Be Interested In


Engineering Web: Rotating Biological Contactors

Pages: 1 - 3 of 51

Nitrification Enhancement through pH Control with Rotating...
Nitrification Enhancement through pH Control with Rotating Biological Contactors
See Storming Media LLC Information
Rotating Biological Contactors - Rotating Biological...
Rotating Biological Contactors The Biological process of the RBC Rotating Biological Contactors , Water Treatment - Aeration & Mixing
See Environmental Expert S.L. Information
Environmental Technology and Equipment
Rotating Biological Contactors (13) More Related Categories
See Environmental Expert S.L. Information
More >>
Process Equipment Home