Organic waste removal from process streams
AssigneePower Engineering Company
InventorsBryon J. Tarbet, Robert D. Hancock, Jeffrey W. Zidek
Life of this patent
Estimating the term…
Abstract
The precipitation and removal of suspended organic containing particles, such as starch, and other suspended solids from a given solution can be accomplished by the addition of multivalent metal ions and their complexes in order to form metal ion/organic particle complexes and the addition of a flocculating agent to flocculate the metal ion/organic particle complexes into insoluble particles capable of removal by conventional technology.
Claims19
A method for removing suspended sugar unit containing particles from a solution, said method comprising:
- treating said solution with at least one complexing agent;
- adding a flocculating agent to said solution in order to form a plurality of insoluble flocculate particles which contain said sugar unit containing particles, said solution having a pH which is not reduced below about 5 prior to treating said solution with said complexing agent;
- and
- removing at least a portion of said insoluble flocculate particles from said solution.
A method for precipitating sugar unit containing particles from an aqueous solution, said method comprising:
- treating said aqueous solution with an aluminate to allow said aluminate to complex with said sugar units contained in said particles to form aluminate/particle complexes said solution having a pH which is not reduced below about 5 prior to treating said solution with said aluminate;
- adding a flocculating agent to said aqueous solution in order to flocculate said aluminate/particle complexes into a plurality of insoluble flocculate particles;
- and
- removing at least a portion of said insoluble flocculate particles from said aqueous solution.
A method for reducing the COD content created from sugar unit containing particles and soluble components from an aqueous solution, said method comprising:
- treating said aqueous solution with a complexing agent to allow said complexing agent to complex with said sugar unit containing particles and soluable components, said solution having a pH which is not reduced below about 5 prior to treating said solution with said complexing agent;
- adding one of either an anionic or a cationic flocculating agent to said aqueous solution in order to flocculate said complexed sugar unit containing particles and soluble components into a plurality of insoluble flocculate particles;
- and
- removing at least a portion of said insoluble flocculate particles from said aqueous solution.
Dependencies are inferred from the claim text.