Reserve pit waste treatment system

A self-contained, transportable waste treatment apparatus comprising:

• a. an elongated, transportable, structural sled;
• b. a fluid inlet discharging into the bottom of at least one mixing tank at one end of the sled for supplying a waste stream containing a chemical enhancing the formation for floc thereto;
• c. a hollow tube disposed vertically within the tank and surrounding the inlet, and means for circulating fluid through and around the tube so that the circulating fluid discharges from the top of the tube and then circulates around the tube in a direction which returns the fluid into the bottom of said tube to the area adjacent the inlet;
• d. a plurality of vertically standing intersecting walls disposed about the periphery of the sled to define a settling tank on the sled;
• e. outlet means at the end of the settling tank opposite the mixing tank for removing supernatent liquid from the settling tank so that flow proceeds through the tank in a general direction from the fluid inlet to the outlet means;
• f. a plurality of vertically disposed baffle sections with small spaces therebetween forming a baffle structure extending from the top to the bottom of said settling tank that is placed interiorly of the settling tank transverse to the direction of flow, dividing the settling tank into primary and secondary sections, said spaces allowing the passage of water therethough to maintain a constant fluid level in said settling tank while enhancing floc size and solids deposition;
• g. inlet wier means for transmitting supernatant liquid from the mixing tank to the primary section of the settling tank;
• and
• h. sludge drawoff means supported by the sled and disposed at the lower portion of the settling tank for removing settled sludge material from the primary and the secondary sections of the settling basin.