EPT - Enviromental Protection Thechnologies

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Technologies  //  UASB - Upflow Anaerobic Sludge Blanket

The Upflow Anaerobic Sludge Blanket (UASB) is one of the more technologically advanced high-rate anaerobic wastewater treatment systems. It is capable of removing 85-90% of the influent COD at relatively high loading rate of 10-15 kg COD/m3/d with a short hydraulic retention time (HRT) of 4 to 8 hours and low footprint. Furthermore, it can handle successfully with high fluctuation of raw wastewater organic loading.

The UASB reactor operates as suspended growth system where microorganisms attach themselves to each other or to small particles of suspended matter to form agglomerates of highly settleable granules that form an active sludge blanket at the bottom of the reactor. The produced biogas (70-75% methane and 20-25% CO2) causes sufficient mixing to keep the bed fully mixed.
The conditioned wastewater is discharged to the bottom of the reactor through a proprietary distribution grid and flows through the sludge blanket. A proprietary three-phase separator, installed on the top of the reactor separates between the effluent, sludge granules and biogas.

EPT has vast knowledge and experience in the design, construction and operation of over 10 UASB plants.

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