PROCESS FOR RECOVERY OF PHOSPHOROUS VALUES FROM DILUTE PLANT EFFLUENTS

摘要

The process of recovering phosphorus values from plant effluents by precipitating the phosphorus values with lime to obtain a sludge which is difficult to handle is improved by treating the sludge with phosphoric acid so as to convert phosphorus values in the sludge from basic calcium phosphate to crystalline calcium phosphates which are readily filterable and useful as an animal feed supplement.