Raceways and systems thereof

Abstract

A raceway for collecting molts and removing waste comprises a sloped base with an apex, a divider extending upward from the apex, two side walls, each opposing and parallel to the divider sufficient to form two elongated channels on the sloped base; and at least two ends in fluid communication with the channels, each end including an end wall and a sloped floor extending from the sloped base to the end wall.

What is claimed is: 
     
         1 . A raceway, comprising:
 a base,   a divider extending upward from the base,   two side walls, each opposing and parallel to the divider sufficient to form two elongated channels on the base; and   at least two ends in fluid communication with the channels, each end including:
 an end wall, and 
 a sloped floor extending from the base toward the end wall. 
   
     
     
         2 . The raceway of  claim 1 , wherein the divider minimizes turbulent flow in each channel. 
     
     
         3 . The raceway of  claim 1 , wherein the base and the divider form a perpendicular angle. 
     
     
         4 . The raceway of  claim 1 , wherein a length of the divider is less than a length the two side walls. 
     
     
         5 . The raceway of  claim 1 , wherein the channels have a symmetric configuration. 
     
     
         6 . The raceway of  claim 1 , wherein the channels have an asymmetric configuration. 
     
     
         7 . The raceway of  claim 1 , wherein each channel includes one or more of an expansion zone, a contraction zone, and a non-expansion zone. 
     
     
         8 . The raceway of claim, wherein the expansion zone encourages settling of molts and/or wastes and the contraction zone increases a fluid flow rate. 
     
     
         9 . The raceway of  claim 1 , wherein each of the two channels includes an expansion region and a contraction region and the corresponding expansion regions and contraction regions of the two channels have the same cross-sectional area and/or angle relative to a horizontal axis line along the length of the channels. 
     
     
         10 . The raceway of  claim 1 , wherein the recovery zone encourages settling of molts and/or wastes. 
     
     
         11 . The raceway of  claim 1 , wherein at least one of the recovery zones includes at least one corner insert. 
     
     
         12 . The raceway of  claim 11 , wherein the at least one corner insert is rounded. 
     
     
         13 . The raceway of  claim 11 , wherein the at least one corner insert is straight. 
     
     
         14 . The raceway of  claim 1 , wherein the recovery zone further comprises one or more of an inlet and a pump. 
     
     
         15 . The raceway of  claim 14 , wherein the inlet is included in the end wall and is provided in-line with an outlet channel. 
     
     
         16 . The raceway of  claim 1 , wherein the raceway collects molts and/or removes wastes. 
     
     
         17 . The raceway of  claim 1 , wherein the base has a slope of 0 degrees. 
     
     
         18 . The raceway of  claim 1 , further comprising a pit located between the sloped floor and the end wall.