The oxidation channel or ditch may well be the most user friendly of current wastewater treatment systems. 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, it is resilient and flexible.
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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
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.
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Lagoons are pond-like treatment systems designed to receive, hold, and treat wastewater for pre-determined periods 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
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.
The oxidation channel or ditch may well be the most user friendly of current wastewater treatment systems. 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, it is resilient and flexible. It is,
Conventional activated sludge uses a 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
FlowTex™ Drum Filter is a simple, inexpensive, cloth media filter designed for package plant and small flow applications. FlowTex filter provides for outside to inside flow and incorporates a rotating cloth filter drum and a fixed vacuum assembly for backwashing.
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FlowTex Disc Filter is a user-friendly, high-performance, tertiary filter suitable for both small and large flow applications. The FlowTex design incorporates fixed discs with rotating vacuum heads. This outside-to-inside flow ensures that solids stay trapped within the basin. The FlowTex system is a low-cost option for use in a wide variety of applications and configurations.
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Petroleum refineries use large volumes of water, and face challenging treatment requirements, with wastewater that can contain hazardous chemicals, hydrocarbons, phenol, ammonia nitrogen, and many others. This, along with ever-increasing regulatory pressures on treated water
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