Backflow collection system and method for reclaiming the same

A method for reclaiming backflow from a wellbore, comprising:

• collecting solid and liquid matter from a wellbore within a collection receptacle, the collection receptacle including;
• an enclosure;
• and
• an elevated auger extending into the enclosure and configured to remove the solid matter from the enclosure, wherein the auger includes a housing having an outside radius rh, a flighting having a radius rf, and a shaft of the flighting having a radius of r5, wherein a ratio (rs/rf) ranges from about 0.5 to about 0.6, and further wherein a relationship between the flighting radius rf and shaft radius rs promotes separation of the solid matter from the liquid matter as the solid matter travels up the auger and out of the enclosure;
• and
• operating the elevated auger in a manner configured to remove at least a portion of the solid matter from the enclosure.