Numbers and Titles



Includesfixed-film process equipment and equipment for suspended-growth processes other than activated sludge.
Alternate Terms/AbbreviationsRBC: rotating biological contactor. MBBR: moving bed biological reactor. IFAS: integrated fixed-film activated sludge. BAF: biologically activated filter. MBR: membrane biological reactor. SBR: sequencing batch reactor.
Notestanks associated with biological treatment systems are typically under the Division of the associated tank material or work result (such as Division 03, Concrete), or in 43 41 00, Atmospheric Tanks and Vessels, or any other appropriate Division.
See40 90 00 for process controls, and flow metering and dissolved oxygen measurement instrumentation.
46 53 13Rotating Biological Contactors
46 53 23Trickling Filter Rotary Distributor Equipment
46 53 24Trickling Filter Media
46 53 26Bio-towers
46 53 33Moving-bed Biological Reactors
46 53 36Integrated Fixed-film Activated Sludge Equipment
46 53 41Intermittent Sand Filters for Wastewater Treatment
46 53 43Deep-bed Denitrification Filters
46 53 46Biologically Activated Filters
46 53 49Membrane Biological Reactors
46 53 53Sequencing Batch Reactors
46 53 61Oxidation Ditch Equipment
46 53 63Vertical Loop Reactors