Patent ID: 7771594

Claim:
A water recovery apparatus for recovering water from aqueous fluids containing suspended solid matter, said apparatus comprising: (a) a settling tank having a sloping floor extending from an upper end to a lower end; (b) a collection chamber adjacent to, and having a floor lower than, said lower end of the settling tank's sloping floor, said collection chamber having an outlet port; (c) a primary mixing tank; (d) primary agitation means associated with the primary mixing tank; (e) a secondary mixing tank; (f) secondary agitation means associated with the secondary mixing tank; (g) fluid transfer means whereby fluids can flow from a lower region of the primary mixing tank into a lower region of the secondary mixing tank; (h) overflow means whereby fluids can flow from an upper region of the secondary mixing tank into the settling tank; and (i) a generally horizontal spillway adjacent to an upper region of the settling tank, said spillway having: i.1 a clean water outlet port: i.2 a gate operable to allow fluid flow from the settling tank into the spillway or from the spillway into the settling tank; and i.3 a gate operable to allow fluid flow from the spillway into the primary mixing tank.