Sequencing batch reactor Ecobatch™

for wastewater treatment

Ecobatch™, or the Sequencing Batch Reactor SBR (generic name) is a basin, or a set of basins of waste activated sludge (WAS) working discontinuously, alternating filling and emptying phases. A settling phase is included to deliver treated water. An SBR is thus both an activated sludge basin and a final clarifier. In most applications five phases are repeated during a cycle: filling, reaction, settling, emptying and idle. Applications • Small or medium sized plants. • High sludge ages (N or N/DN purpose). • Cold wastewater. • Applications requiring flexibility (e.g. industry). • Concentrated waters (e.g. industry) • Low SVI. Features & Benefits Ecobatch is a SBR (Sequencing Batch Reactor), which is a basin, or a set of basins of waste activated sludge operated discontinuously by alternating filling and emptying phases. A SBR combines both an activated sludge basin and a final clarifier. Similar to a conventional biological tank Principle (biodegradation), input (raw water), output (performance achieved) and requirement (aeration and mixing) are similar too a conventional biological tank. SBR is suitable for all biological treatment application, either municipal or industrial wastewater, to comply with any C, N and P removal requirements. However SBR is most suitable in the following cases: Small or medium sized plants • High sludge ages (N or N/DN purpose) • Cold wastewater • Flexibility demand (ex :industrials) • Concentrated water (ex :industrials) • Low SVI • Easy ground excavation Applications Fill phase Wastewater is pumped in under alternating nitrification/denitrification conditions (on/off aeration).