Abstract: A method for cleaning solids-laden aqueous fluids uses an apparatus comprising a settling tank having a sloping floor, which drops off into a collection area; primary and secondary mixing tanks, the lower regions of which are in fluid communication via fluid transfer means; and agitators in each of the mixing tanks. Solids-laden fluid is introduced into the primary mixing tank along with selected coagulant and/or flocculent chemicals, whereupon the agitator in the primary mixing tank is actuated to induce downward fluid flow toward the fluid transfer means and into the secondary mixing tank. The agitator in the secondary mixing tank is actuated to induce upward fluid flow in the secondary mixing tank, from which the fluid mixture overflows into the setting tank. Solids settle or precipitate into the settling tank, and then move downward along the settling tank's sloped floor and into the collection area, from which the solids can be removed for further treatment or disposal.

Abstract: A method for cleaning solids-laden aqueous fluids uses an apparatus comprising a settling tank having a sloping floor, which drops off into a collection area; primary and secondary mixing tanks, the lower regions of which are in fluid communication via fluid transfer means; and agitators in each of the mixing tanks. Solids-laden fluid is introduced into the primary mixing tank along with selected coagulant and/or flocculent chemicals, whereupon the agitator in the primary mixing tank is actuated to induce downward fluid flow toward the fluid transfer means and into the secondary mixing tank. The agitator in the secondary mixing tank is actuated to induce upward fluid flow in the secondary mixing tank, from which the fluid mixture overflows into the setting tank. Solids settle or precipitate into the settling tank, and then move downward along the settling tank's sloped floor and into the collection area, from which the solids can be removed for further treatment or disposal.

Abstract: An apparatus for cleaning solids-laden aqueous fluids includes a settling tank having a sloping floor, which drops off into a collection area; primary and secondary mixing tanks, the lower regions of which are in fluid communication via fluid transfer means; and agitators in each of the mixing tanks. Solids-laden fluid is introduced into the primary mixing tank along with selected coagulant and/or flocculent chemicals, whereupon the agitator in the primary mixing tank is actuated to induce downward fluid flow toward the fluid transfer means and into the secondary mixing tank. The agitator in the secondary mixing tank is actuated to induce upward fluid flow in the secondary mixing tank, from which the fluid mixture overflows into the setting tank. Solids settle or precipitate into the settling tank, and move downward along the settling tank's sloped floor and into the collection area, from which the solids can be removed for further treatment or disposal.

Abstract: An apparatus for cleaning solids-laden aqueous fluids includes a settling tank having a sloping floor, which drops off into a collection area; primary and secondary mixing tanks, the lower regions of which are in fluid communication via fluid transfer means; and agitators in each of the mixing tanks. Solids-laden fluid is introduced into the primary mixing tank along with selected coagulant and/or flocculent chemicals, whereupon the agitator in the primary mixing tank is actuated to induce downward fluid flow toward the fluid transfer means and into the secondary mixing tank. The agitator in the secondary mixing tank is actuated to induce upward fluid flow in the secondary mixing lank, from which the fluid mixture overflows into the setting tank. Solids settle or precipitate into the settling tank, and move the settling tank's sloped floor and into the collection area, from which the solids can be removed for further treatment or disposal.