Asked by: Benicio Lacunza-Andueza
asked in category: General Last Updated: 5th February, 2020

How does a UASB reactor work?

UASB uses an anaerobic process whilst forming a blanket of granular sludge which suspends in the tank. Wastewater flows upwards through the blanket and is processed (degraded) by the anaerobic microorganisms. The upward flow combined with the settling action of gravity suspends the blanket with the aid of flocculants.

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Also, what is Uasb process?

The upflow anaerobic sludge blanket reactor (UASB) is a single tank process in an anaerobic centralised or decentralised industrial wastewater or blackwater treatment system achieving high removal of organic pollutants . Wastewater enters the reactor from the bottom, and flows upward.

Likewise, how do you calculate upflow velocity? = 30 to 50 days. = 8 to 10 h or more at average flow.

HRT 8-10 hours at average flow (minimum 4 hours at peak flow)
Upflow velocity About 0.5 m/h at average flow, or 1.2 m/h at peak flow, whichever is low.

Likewise, people ask, what forms the sludge blanket?

Up flow anaerobic sludge blanket technology also known as UASB reactor is a form of anaerobic digester which used in wastewater treatment. UASB reactor is a methane-producing digester, which uses an anaerobicprocess and forming a blanket of granular sludge and is processed by the anaerobic microorganisms.

What is a sludge bed?

An expanded granular sludge bed (EGSB) reactor is a variant of the upflow anaerobic sludge blanket digestion (UASB) concept for anaerobic wastewater treatment. The distinguishing feature is that a faster rate of upward-flow velocity is designed for the wastewater passing through the sludge bed.

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