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  2. Bioreactor - Wikipedia

    en.wikipedia.org/wiki/Bioreactor

    Bioreactor. A bioreactor is any manufactured device or system that supports a biologically active environment. [ 1 ] In one case, a bioreactor is a vessel in which a chemical process is carried out which involves organisms or biochemically active substances derived from such organisms. This process can either be aerobic or anaerobic.

  3. Bubble column reactor - Wikipedia

    en.wikipedia.org/wiki/Bubble_column_reactor

    A bubble column reactor is a chemical reactor that belongs to the general class of multiphase reactors, which consists of three main categories: trickle bed reactor (fixed or packed bed), fluidized bed reactor, and bubble column reactor. [ 1 ] A bubble column reactor is a very simple device consisting of a vertical vessel filled with water with ...

  4. Membrane bioreactor - Wikipedia

    en.wikipedia.org/wiki/Membrane_bioreactor

    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 ...

  5. Continuous stirred-tank reactor - Wikipedia

    en.wikipedia.org/wiki/Continuous_stirred-tank...

    The continuous stirred-tank reactor (CSTR), also known as vat- or backmix reactor, mixed flow reactor (MFR), or a continuous-flow stirred-tank reactor (CFSTR), is a common model for a chemical reactor in chemical engineering and environmental engineering. A CSTR often refers to a model used to estimate the key unit operation variables when ...

  6. Activated sludge - Wikipedia

    en.wikipedia.org/wiki/Activated_sludge

    The white bubbles are due to the diffused air aeration system. The activated sludgeprocess 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 ...

  7. Secondary treatment - Wikipedia

    en.wikipedia.org/wiki/Secondary_treatment

    Secondary treatment (mostly biological wastewater treatment) is the removal of biodegradable organic matter (in solution or suspension) from sewage or similar kinds of wastewater. [ 1 ]: 11 The aim is to achieve a certain degree of effluent quality in a sewage treatment plant suitable for the intended disposal or reuse option.

  8. Moving bed biofilm reactor - Wikipedia

    en.wikipedia.org/wiki/Moving_Bed_Biofilm_Reactor

    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.

  9. Chemostat - Wikipedia

    en.wikipedia.org/wiki/Chemostat

    Chemostat. A chemostat diagram featuring inflow (feed) and outflow (effluent). Enclosed chemostat vessel with a continuous and adjustable inflow of medium and outflow of effluent, used for controlled growth of microorganisms. The system maintains a constant volume and level of aeration. The growth rate of the microorganism is controlled by ...

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