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A rotating biological contactor is a type of secondary (biological) treatment process. It consists of a series of closely spaced, parallel discs mounted on a rotating shaft which is supported just above the surface of the wastewater. Microorganisms grow on the surface of the discs where biological degradation of the wastewater pollutants takes ...
These facilities were planned and constructed in the late 1990's through the early 2000's to contain and treat wet-weather wastewater flows which originated in the legacy combined sewer areas of the Detroit metro area. [13] The City of Detroit was originally developed and as water and sewer services grew within the existing municipal boundary ...
Overview. The Detroit Water and Sewerage Department is a sprawling network covering 1,079 square-miles, [1] [3] servicing more than 40 percent of the U.S. state of Michigan 's population, [1] and employing nearly 2,000 people. [4] The DWSD is one of the most extensive and largest water and sewage systems in the United States. [1]
1931–present. Fort Detrick ( / ˈdiːtrɪk /) is a United States Army Futures Command installation located in Frederick, Maryland. Fort Detrick was the center of the U.S. biological weapons program from 1943 to 1969. Since the discontinuation of that program, it has hosted most elements of the United States biological defense program.
Moving bed biofilm reactor. Moving bed biofilm reactor ( MBBR) is a type of wastewater treatment process that was first invented by Professor Hallvard Ødegaard at Norwegian University of Science and Technology in the late 1980s. [ 1] The process takes place in an aeration tank with plastic carriers that a biofilm can grow on.
A biofilter is a bed of media on which microorganisms attach and grow to form a biological layer called biofilm. Biofiltration is thus usually referred to as a fixed–film process. Generally, the biofilm is formed by a community of different microorganisms ( bacteria, fungi, yeast, etc.), macro-organisms ( protozoa, worms, insect's larvae, etc ...
Membrane bioreactors are combinations of membrane processes like microfiltration or ultrafiltration with a biological wastewater treatment process, the activated sludge process. These technologies are now widely used for municipal and industrial wastewater treatment. [ 1] The two basic membrane bioreactor configurations are the submerged ...
The white bubbles are due to the diffused air aeration system. The activated sludge process is a type of biological wastewater treatment process for treating sewage or industrial wastewaters using aeration and a biological floc composed of bacteria and protozoa. It is one of several biological wastewater treatment alternatives in secondary ...