EGSB anaerobic reactor, granular sludge bed expansion


Granular sludge bed (EGSB), anaerobic tank of granular sludge can under the rise velocity of a certain amount of water, forming a bed body.EGSB, unlike UASB, sludge in UASB layer for a relatively fixed bed, the EGSB for expanded bed, due to the rising velocity, granular sludge in a state of inflation.So it is more easy than UASB cloth water evenly, mass transfer effect is better, a higher removal rate of organic matter, can adapt to the high concentration organic wastewater and low concentration organic wastewater, high volume load, high removal rate of COD.


Compared with UASB and other anaerobic biological treatment process, the EGSB reactor has the following advantages:


(1) processing capacity is big, good treatment efficiency, stable running, simple structure;


(2) are more likely to be the formation of granular sludge and uniform distribution, the sludge bed in biomass;Very suitable for the high concentration organic wastewater treatment.


(3) the volume rate is high, the residence time is shorter, so the volume significantly reduced;The reactor volume load rate UASB reactor 2 to 3 times higher than normal.


(4) the operation is convenient, by means of mixing water distribution, uniform water distribution, and mass transfer is good fruit, but there is no congestion;


(5) set up outside reflux system, in the operation of anaerobic reactor basicity can realize automatic adjustment control, lye can greatly reduce the cost.


(6) cover an area of an area small, facilitate management.
 
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