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1. 发明申请

WO2021217213A1 METHODS AND SYSTEMS FOR GRIT REMOVAL FROM WASTE WATER 审中-公开
公开(公告)号：WO2021217213A1
公开(公告)日：2021-11-04
申请号：PCT/AU2021/050393
申请日：2021-04-30
申请人： VOR ENVIRONMENTAL AUSTRALIA PTY LTD
发明人： LEMONT, Lisa Beth , HO, Vincent Khee Sin
IPC分类号： B01D21/24 , B01D21/26 , B04C1/00 , C02F1/38 , E03F5/14
摘要： A method of modifying a vortex grit trap (10) of the type including: an influent channel (31) for receiving waste water inflow; a tank (30a) including: an upper chamber (33) in fluid communication with the influent channel (31) to receive the waste water inflow from the influent channel (31); and a lower grit well (34) in fluid communication with the upper chamber (33), the lower grit well (34) configured to receive grit suspended in the waste water inflow from the upper chamber (33); and a rotary impeller arrangement configured to create a vortex within the tank (30a); a degritted effluent channel (32) in fluid communication with the upper chamber (33) for exiting degritted water from the tank (30a); and a concentrated grit slurry effluent channel (42) in fluid communication with the lower grit well (34), the concentrated grit slurry effluent channel (42) configured for exiting concentrated grit slurry from the lower grit well (34); the method including: fitting a baffle tray (35) within the degritted effluent channel (32), the baffle tray (35) comprising a base portion (37) having an opening (38) therein and a weir portion (36) extending from a periphery (37a) of the base portion (37), wherein the baffle tray (35) is fitted to the degritted effluent channel (32) in such a manner that: the opening (38) is disposed over the upper chamber (33) of the tank (30a); the degritted water from the upper chamber (33) is directed through the opening (38) into the baffle tray (35); and the weir portion (36) obstructs direct flow of waste water from the influent channel (31) into the degritted effluent channel (32).

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