Process and system for treating waste water
Abstract
A process of treating raw or primary waste water using a powdered, activated carbon/aerated biological treatment system is disclosed. Effluent turbidities less than 2 JTU (Jackson turbidity units), zero TOC (total organic carbon) and in the range of 10 mg/l COD (chemical oxygen demand) can be obtained. An influent stream of raw or primary waste water is contacted with an acidified, powdered, activated carbon/alum mixture. Lime is then added to the slurry to raise the pH to about 7.0. A polyelectrolyte flocculant is added to the slurry followed by a flocculation period -- then sedimentation and filtration. The separated solids (sludge) are aerated in a stabilization sludge basin and a portion thereof recycled to an aerated contact basin for mixing with the influent waste water stream prior to or after contact of the influent stream with the powdered, activated carbon/alum mixture.
- Inventors:
-
- Kennewick, WA
- Pasco, WA
- Publication Date:
- Research Org.:
- Battelle Memorial Institute, Columbus, OH (United States)
- OSTI Identifier:
- 863020
- Patent Number(s):
- US 4076615
- Assignee:
- Battelle Pacific N. W. Laboratories (Richland, WA)
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; treating; waste; water; raw; primary; powdered; activated; carbon; aerated; biological; treatment; disclosed; effluent; turbidities; jtu; jackson; turbidity; units; zero; toc; total; organic; range; 10; mg; cod; chemical; oxygen; demand; obtained; influent; stream; contacted; acidified; alum; mixture; lime; added; slurry; raise; ph; polyelectrolyte; flocculant; followed; flocculation; period; sedimentation; filtration; separated; solids; sludge; stabilization; basin; portion; recycled; contact; mixing; prior; organic carbon; stream prior; water stream; waste water; activated carbon; treating waste; oxygen demand; chemical oxygen; total organic; /210/
Citation Formats
Olesen, Douglas E, and Shuckrow, Alan J. Process and system for treating waste water. United States: N. p., 1978.
Web.
Olesen, Douglas E, & Shuckrow, Alan J. Process and system for treating waste water. United States.
Olesen, Douglas E, and Shuckrow, Alan J. 1978.
"Process and system for treating waste water". United States. https://www.osti.gov/servlets/purl/863020.
@article{osti_863020,
title = {Process and system for treating waste water},
author = {Olesen, Douglas E and Shuckrow, Alan J},
abstractNote = {A process of treating raw or primary waste water using a powdered, activated carbon/aerated biological treatment system is disclosed. Effluent turbidities less than 2 JTU (Jackson turbidity units), zero TOC (total organic carbon) and in the range of 10 mg/l COD (chemical oxygen demand) can be obtained. An influent stream of raw or primary waste water is contacted with an acidified, powdered, activated carbon/alum mixture. Lime is then added to the slurry to raise the pH to about 7.0. A polyelectrolyte flocculant is added to the slurry followed by a flocculation period -- then sedimentation and filtration. The separated solids (sludge) are aerated in a stabilization sludge basin and a portion thereof recycled to an aerated contact basin for mixing with the influent waste water stream prior to or after contact of the influent stream with the powdered, activated carbon/alum mixture.},
doi = {},
url = {https://www.osti.gov/biblio/863020},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1978},
month = {Sun Jan 01 00:00:00 EST 1978}
}