Wastewater Treatment | Secondary Treatment
Secondary treatment is the heart of most wastewater treatment plants.  Many biological treatment options are available.  Selection of the best fit for a particular application depends on many factors including influent and effluent criteria, effluent disposal or reuse, site availability and constraints, energy costs, solids disposal or reuse alternatives and operator preference.
Product Description Manufacturer
Vertical Loop Reactor (VLR®) for Biological Treatment A highly effficient, simple process that is Ideally suited for conventional and advanced activated sludge, simultaneous nitrification/denitrification, biological phosphorus removal and stormwater treatment. Evoqua/Envirex
Orbal® Multichannel Oxidation System A complete mix, looped reactor system that’s ideal for conventional activated sludge, advanced secondary sludge treatment, simultaneous nitrification-denitrification, biological phosphorus removal and stormwater treatment. Evoqua/Envirex
Evoqua MemPulse® Submerged Membrane Bioreactor Systems Membrane bioreactor wastewater treatment process that combines a single sludge aerobic biological treatment process with an integrated, immersed membrane system.

Evoqua/Envirex
Rex-Flex™ Fine Bubble Membrane Diffuser When air is turned on, the membrane expands and rises off its seat and the apertures open to release a controlled, energy efficient stream of bubbles. Evoqua/Envirex
Rotating Biological Contactor (RBC) Process Ideal for secondary and/or advanced treatment in municipal or industrial applications. Evoqua/Envirex
OMNIFLO® Sequencing Batch Reactor (SBR) Systems A fill-and-draw, non-steady state activated sludge process in which one or more reactor basins are filled with wastewater during a discrete time period, and then operated in a batch mode. Evoqua/Jet Tech
Jet Aeration and Mixing Industry leading, high efficiency Vari-Cant jet aeration systems. Evoqua/Jet Tech
Package treatment plants for wastewater applications Customers benefit economically and timewise from our ability to provide a wide range of wastewater treatment equipment from design to construction. Evoqua/Davco
Single-stage direct drive turbo and integrally geared high efficiency blowers Siemens/Turblex advantages include: power savings--up to 35 percent more efficient than competitive units, and turndown of air flow—100 to 40 percent to match aeration requirements. Siemens Energy /Turblex
Biostyr® A high-rate upflow submerged media biologically aerated filter (BAF). Kruger
AnoxKaldness™ Moving Bed Biofilm Bioreactor (MBBR) for efficient, compact biological treatment. Kruger
Oases A high-purity oxygen (HPO) activated sludge process for secondary treatment of wastewater. Kruger
Oxidation Ditch Technologies Kruger is a leading supplier of Oxidation Ditch technologies and offers some of the most advanced treatment processes on the market today. Kruger
Diffused Aeration Panel Parkson’s aeration components can reduce costs while increasing the efficiency of the wastewater aeration process. Parkson
Biolac® Treatment System An innovative activated sludge process using long sludge age biological treatment to create an extremely stable, easily operated system. Parkson
Biolac® Wave Oxidation© Nutrient Removal Process - Wave Ox Simplifies biological nutrient removal (BNR.) Parkson
Turborator® self aspriating submerged aerator/mixer MGD's self aspirating aerator is ideal for ATAD's and ATAD retrofits, lagoons, aeration basins and aerobic digesters. MGD Process Technologies

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