Activated sludge definition
Activated sludge means a biological wastewater treatment process in which a mixture of wastewater and sludge floc, produced in a raw or settled wastewater by the growth of microorganisms, is agitated and aerated in the presence of a sufficient concentration of dissolved oxygen, followed by sedimentation.
Activated sludge means sludge floc produced in raw or settled wastewater by the growth of zoogleal bacteria and other organisms in the presence of dissolved oxygen and accumulated in sufficient concentration by returning floc previously formed;
Activated sludge means a biological wastewater treatment process in which biodegradable pollutants in wastewater are absorbed, or adsorbed, by living aerobic organisms and bacteria in an aerated suspension that is separated from the treated wastewater.
Examples of Activated sludge in a sentence
Orange County is soliciting competitive bids for the hauling of Thickened Waste Activated sludge via tanker trucks from HWRF to SWRF.
For this task, J-U-B will evaluate the feasibility of converting the existing SBRs to a continuous- flow activated sludge system, which will include a planning level evaluation of the following items: Activated sludge system Determine the minimum solids retention time required for nitrification and evaluate if it can be achieved with the proposed system, assuming two of the existing SBRs are retrofitted for continuous-flow basins.
More Definitions of Activated sludge
Activated sludge means the suspended biomass containing living microbial organisms used in the Aeration Basin to degrade and remove dissolved organics from the wastewater.
Activated sludge means a biological wastewater treatment process in which a mixture of wastewater and activated sludge is agitated and aerated and includes extended aeration and oxidation ditch treatment processes.
Activated sludge means a biological sewage treatment process in which a mixture of sewage and sludge floc, produced in a raw or settled sewage by the growth of zoogloea and other organisms, is agitated and aerated in the presence of a sufficient concentration of dissolved oxygen, followed by sed- imentation. This definition includes but is not limited to: conventional activated sludge, extended aeration, step aeration, contact stabilization, Kraus process, Hatfield process, complete mix, high-rate aeration and oxidation ditches.