Patent ID: 11964892
Assignee: MONSANTO TECHNOLOGY LLC
Field: Environmental technology (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A process for recovery of phosphorus from a waste stream comprising inorganic phosphorous, the process comprising:
subjecting at least a portion of the waste stream to biological treatment by microorganisms to form a biologically treated waste stream;
contacting the biologically treated waste stream with an oxidizing agent to form an oxidized treated waste stream, wherein the oxidizing agent is selected from the group consisting of calcium hypochlorite, sodium hypochlorite, bleach, and combinations thereof;
contacting the oxidized treated waste stream with a precipitant, thereby forming within the oxidized treated waste stream phosphate containing precipitates, wherein the precipitant comprises a metal selected from the group consisting of calcium, aluminum, iron, magnesium, and mixtures thereof; and
recovering a phosphate containing cake from the oxidized treated waste stream, thereby forming a treated waste stream.