Method for processing aqueous wastes

Patent · Fri Jan 01 00:00:00 EST 1993

OSTI ID:869096

Pickett, John B ^[1]; Martin, Hollis L ^[2]; Langton, Christine A ^[3]; Harley, Willie W ^[4]

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1. 3922 Wood Valley Dr., Aiken, SC 29803
2. Rt. 1, Box 188KB, McCormick, SC 29835
3. 455 Sumter St. SE., Aiken, SC 29801
4. 110 Fairchild St., Batesburg, SC 29006

A method for treating waste water such as that from an industrial processing facility comprising the separation of the waste water into a dilute waste stream and a concentrated waste stream. The concentrated waste stream is treated chemically to enhance precipitation and then allowed to separate into a sludge and a supernate. The supernate is skimmed or filtered from the sludge and blended with the dilute waste stream to form a second dilute waste stream. The sludge remaining is mixed with cementitious material, rinsed to dissolve soluble components, then pressed to remove excess water and dissolved solids before being allowed to cure. The dilute waste stream is also chemically treated to decompose carbonate complexes and metal ions and then mixed with cationic polymer to cause the precipitated solids to flocculate. Filtration of the flocculant removes sufficient solids to allow the waste water to be discharged to the surface of a stream. The filtered material is added to the sludge of the concentrated waste stream. The method is also applicable to the treatment and removal of soluble uranium from aqueous streams, such that the treated stream may be used as a potable water supply.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• DOE Contract Number: AC09-89SR18035
• Assignee: Pickett, John B. (3922 Wood Valley Dr., Aiken, SC 29803);Martin, Hollis L. (Rt. 1, Box 188KB, McCormick, SC 29835);Langton, Christine A. (455 Sumter St. SE., Aiken, SC 29801);Harley, Willie W. (110 Fairchild St., Batesburg, SC 29006)
• Patent Number(s): US 5273661
• OSTI ID: 869096
• Country of Publication: United States
• Language: English

Related Subjects

method
processing
aqueous
wastes
treating
waste
water
industrial
facility
comprising
separation
dilute
stream
concentrated
treated
chemically
enhance
precipitation
allowed
separate
sludge
supernate
skimmed
filtered
blended
form
remaining
mixed
cementitious
material
rinsed
dissolve
soluble
components
pressed
remove
excess
dissolved
solids
cure
decompose
carbonate
complexes
metal
cationic
polymer
precipitated
flocculate
filtration
flocculant
removes
sufficient
allow
discharged
surface
added
applicable
treatment
removal
uranium
streams
potable
supply
concentrated waste
cementitious material
aqueous stream
excess water
waste water
waste stream
industrial process
water supply
treating waste
aqueous waste
soluble components
remove excess
aqueous streams
dissolved solids
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