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Title: 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:
 [1];  [2]
  1. (Kennewick, WA)
  2. (Pasco, WA)
Publication Date:
Research Org.:
BATTELLE MEMORIAL INSTITUTE
OSTI Identifier:
863020
Patent Number(s):
US 4076615
Assignee:
Battelle Pacific N. W. Laboratories (Richland, WA) PNNL
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. Sun . "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 = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

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