System and Method for Reclaiming and Cleaning Sand

A system for cleaning and reclaiming sand, comprising:

• at least one pump configured to receive a mixture of manure, sand, and debris from a source of manure;
• at least one hydraulic classifier that receives the mixture from the at least one pump and processes the mixture for separating the sand from other portions of the mixture, thereby providing cleaned and reclaimed sand;
• at least one pressure sensor configured to measure fluid pressure within a portion of the at least one hydraulic classifier;
• at least one flow control valve configured to open and close for controlling flow of processing water into the at least one hydraulic classifier;
• and
• at least one controller configured to receive pressure measurements from the at least one pressure sensor and control flow of the mixture through the at least one flow control valve based, at least in part, on the received pressure measurements.

A method for cleaning and reclaiming sand, comprising:

• receiving a manure mixture comprising water, manure, sand, and debris from a livestock housing;
• moving the received mixture to an inlet of at least one hydrocyclone using a pump, wherein the at least one hydrocyclone is configured for dewatering and separating particles of the mixture;
• moving discharge from the at least one hydrocyclone to an inlet of at least one hydraulic classifier;
• activating the at least one hydraulic classifier to separate sand of a target particle gravity, density, and/or size from other particles and/or debris of the mixture;
• and
• moving a slurry comprising sand from the manure mixture to a dewatering screen for separating water from the slurry, thereby producing an amount of cleaned and reclaimed sand from the manure mixture.