TY - JOUR
T1 - Enhanced electro-osmotic dewatering of fine particle suspension using a rotating anode
AU - Man Yin Ho, null
AU - Chen, G.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2001/4/18
Y1 - 2001/4/18
N2 - Electro-osmotic dewatering (EOD) of 9.1 wt % bentonite slurry was investigated using a stationary and rotating anode. The rotational speed varied from 0 to 300 rpm. Excessive slurry is necessary to load beyond the anode initially to maintain good contact between the anode and the dewatered slurry. The water removed from the slurry increased significantly with the rotational speed initially and reached a plateau at 240 rpm. This increase is found to be due to the "falling off" of the dry cake from the rotating anode. The average solid content of the cake in the chamber after EOD can be 24.6 wt % with the anode rotating at 240 rpm and 3 times excessive initial loading of slurry. This solid content is 70.8% higher than that obtained using a stationary stainless steel anode. When a pin was inserted beneath the rotating anode, an optimal cake thickness of 5 mm was found in terms of water removal. The energy consumption for the process is <20% of the latent heat of water evaporation.
AB - Electro-osmotic dewatering (EOD) of 9.1 wt % bentonite slurry was investigated using a stationary and rotating anode. The rotational speed varied from 0 to 300 rpm. Excessive slurry is necessary to load beyond the anode initially to maintain good contact between the anode and the dewatered slurry. The water removed from the slurry increased significantly with the rotational speed initially and reached a plateau at 240 rpm. This increase is found to be due to the "falling off" of the dry cake from the rotating anode. The average solid content of the cake in the chamber after EOD can be 24.6 wt % with the anode rotating at 240 rpm and 3 times excessive initial loading of slurry. This solid content is 70.8% higher than that obtained using a stationary stainless steel anode. When a pin was inserted beneath the rotating anode, an optimal cake thickness of 5 mm was found in terms of water removal. The energy consumption for the process is <20% of the latent heat of water evaporation.
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U2 - 10.1021/ie0009031
DO - 10.1021/ie0009031
M3 - RGC 21 - Publication in refereed journal
SN - 0888-5885
VL - 40
SP - 1859
EP - 1863
JO - Industrial & Engineering Chemistry Research
JF - Industrial & Engineering Chemistry Research
IS - 8
ER -