Entex Technologies Inc.

6 products found


  • Systems We Upgrade

  • ENTEX - Conventional Activated Sludge

    ENTEX - Conventional Activated Sludge

    Conventional activated sludge (AS) uses suspended biomass to provide a flexible and efficient treatment system. While some AS systems use complete mix basins, a plug flow process with longer narrower basins is more common today. Similarly, while some AS systems still use older coarse bubble diffuser systems, most updated systems use fine bubble diffuser systems to maximize energy efficiency. There are step feed variations and tapered aeration...

  • Oxidation Ditches

    Oxidation Ditches

    The oxidation channel or ditch may well be the most user friendly of current wastewater treatment system. The true version is extended aeration, which appears to be plug flow, but has complete mix reactor kinetics. It is very forgiving and with modern variations of multiple channels, is resilient and flexible. It is however rather land demanding.

  • Sequencing Batch Reactors (SBRs)

    Sequencing Batch Reactors (SBRs)

    Since the 1980s when the EPA published its first Sequencing Batch Reactors (SBR) design manuals and SBRs became widely adopted, the SBR technology has not significantly improved, but the loads have steadily climbed.  30 years later, many SBRs are observing decreased treatment efficiency due to increasing loads. ENTEX’s Webitat for SBR system, the world’s most trusted fixed-media SBR upgrade solution, is proven to help restore &...

  • Lagoons for Pond-Like Treatment Systems

    Lagoons for Pond-Like Treatment Systems

    Lagoons are pond-like treatment systems designed to receive, hold, and treat wastewater for a pre-determined period of time. They are often lined with clay or an artificial liner to prevent leaks to the groundwater below.  Many plants are built with aerated lagoons because it is a relatively low-cost option which requires minimal maintenance. Unfortunately, Lagoons have historically offered very limited flexibility to increase performance should...

  • Contact Stabilization Activated Sludge Process (CSASP)

    Contact Stabilization Activated Sludge Process (CSASP)

    The contact stabilization activated sludge process (CSASP) typically achieves the same treatment efficiency in a smaller volume than conventional activated sludge plants. CSASP is particularly suited for small to mid-scale plants where influent wastewater contains a high fraction of particulate COD. With CSASP, the same amount of mass sludge can be retained in the system with almost 30% volume reduction compared to conventional activated sludge...

  • Extended Aeration System

    Extended Aeration System

    Extended Aeration is a type of activated sludge process with no primary settling and very long aerobic detention time to generate less excess sludge overall. It is ideal for smaller flow, modular applications that require low maintenance such as residential subdivisions. But the long HRT of Extended Aeration means larger basins, and when capacity growth outpaces available space, IFAS can be a good solution.