CPC B01D 21/0087 (2013.01) [B01D 21/0042 (2013.01); B01D 21/0045 (2013.01); B01D 21/0093 (2013.01); B01D 21/245 (2013.01); B01D 21/2405 (2013.01); B01D 21/2427 (2013.01); B01D 21/2455 (2013.01); B01D 21/2488 (2013.01); B01D 21/30 (2013.01); B01D 21/34 (2013.01); C02F 1/00 (2013.01); C02F 1/004 (2013.01); C02F 1/52 (2013.01); C02F 2101/10 (2013.01); C02F 2103/10 (2013.01); C02F 2103/34 (2013.01); C02F 2209/42 (2013.01); C02F 2301/022 (2013.01); C02F 2301/046 (2013.01)] | 5 Claims |
1. A method for reducing the particulate in a bottom ash water stream comprising:
a) receiving a bottom ash water stream overflow in a first one of a plurality of continuous dewatering and recirculation containers from a second one of a plurality of continuous dewatering and recirculation containers, each of the plurality of continuous dewatering and recirculation containers comprising a submerged flight conveyor contained therein, at least one lamella settling plate located therein, and at lease one overflow crossover having a valve for connecting one of the plurality of the continuous dewatering and recirculation containers to another one of the plurality of the continuous dewatering and recirculation containers;
b) maintaining a substantially constant water level in the second one of the plurality of continuous dewatering and recirculation containers for filtering the coal combustion residue water stream through the use of at least one overflow crossover having a valve; and
c) selecting the first one of the continuous dewatering and recirculation container from among the plurality of continuous dewatering and recirculation containers for receiving ash water stream overflow.
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