Patent ID: 9662666
Date: 2017-05-30
CPC Classifications: B01D,B04C,C02F,E03F

Claim:
1. A grit removal unit for a wastewater system, comprising: a round grit removal chamber defined by a bottom surface and a substantially annular vertical wall extending up from said bottom surface; a wastewater output from said grit removal chamber; a wastewater input opening through said annular vertical wall, said input opening having a bottom above the bottom surface of the grit removal chamber; an influent channel for directing wastewater with grit into said grit removal chamber through said input opening, said influent channel having a transitional bottom surface sloped downwardly from said influent channel opening bottom wall beginning at the alignment of the downstream ends of said divider wall and said channel other side wall and extending toward said grit removal chamber bottom surface within said grit removal chamber; and a first gate at the upstream end of one of said first and second influent channel portions, said first gate being adjustable to selectively open or block flow of wastewater with grit to said first influent channel portion.