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50 PERFORMANCE OF WORLD'S LARGEST CYCLICAL
ACTIVATED SLUDGE PROCESS TREATING
COMBINED MUNICIPAL/PACKING HOUSE
WASTEWATER
Kevin S. Young, Vice-President
J. R. Wauford & Company
Consulting Engineers, Inc.
Jackson, Tennessee 38305
INTRODUCTION
A new cyclical activated sludge wastewater treatment plant having a design base flow hydraulic
capacity of 6.0 MGD was placed on line in Union City, Tennessee in early October 1986. Influent flow
consistently includes over 1.0 MGD of packing house wastewater pretreated by an anaerobic lagoon.
The packing house wastewater contributes extremely high suspended solids and oxidizable nitrogen
loadings to the new plant. This paper presents the startup procedure used and the process reaction to
influent BOD5, suspended solids and ammonia nitrogen loadings since startup. The results of a dye
tracer study at near-average design flow and two different MLVSS operating schemes are also presented.
PROCESS DESIGN PARAMETERS AND DESCRIPTION
The Union City plant incorporates the ICEAStm variation of the cyclical activated sludge process in
a four tank configuration. The rationale for design of the Union City continuously fed-intermittemly
aerated, settled and decanted activated sludge process is described in a previous paper.1 The design
flows and waste loadings for the Union City cyclical activated sludge process are listed in Table I.
Design effluent requirements are listed in Table II.
Pretreatment includes coarse screening (one-half inch) and grit removal. No primary treatment is
provided.
Table I. Design Flows and Waste Loads Union City, Tennessee
Parameter
Value
Summer Base Flow
Winter Base Flow
Seasonal Sustained Flow
Instantaneous Peak Flow
Summer BOD5 Loading
Winter BOD5 Loading
Summer TKN Loading
Winter TKN Loading
Summer Suspended Solids Loading
Winter Suspended Solids Loading
4.03
MGD
6.03
MGD
9.03
MGD
15.7
MGD
4,600
LBS/DAY
6,200
LBS/DAY
2,353
LBS/DAY
2,000
LBS/DAY
6,672
LBS/DAY
10,008
LBS/DAY
Table II. Effluent Requirements Union City, Tennessee
BOD5
Suspended Solids
Ammonia Nitrogen
Dissolved Oxygen
30 mg/L
30 mg/L
15 mg/L
1.0 mg/L
483
Object Description
| Purdue Identification Number | ETRIWC198750 |
| Title | Performance of world's largest cyclical activated sludge process treating combined municipal/packing house wastewater |
| Author | Young, Kevin S. |
| Date of Original | 1987 |
| Conference Title | Proceedings of the 42nd Industrial Waste Conference |
| Conference Front Matter (copy and paste) | http://e-archives.lib.purdue.edu/u?/engext,38818 |
| Extent of Original | p. 483-490 |
| Collection Title | Engineering Technical Reports Collection, Purdue University |
| Repository | Purdue University Libraries |
| Rights Statement | Digital object copyright Purdue University. All rights reserved. |
| Language | eng |
| Type (DCMI) | text |
| Format | JP2 |
| Date Digitized | 2009-08-03 |
| Capture Device | Fujitsu fi-5650C |
| Capture Details | ScandAll 21 |
| Resolution | 300 ppi |
| Color Depth | 8 bit |
Description
| Title | page 483 |
| Collection Title | Engineering Technical Reports Collection, Purdue University |
| Repository | Purdue University Libraries |
| Rights Statement | Digital copyright Purdue University. All rights reserved. |
| Language | eng |
| Type (DCMI) | text |
| Format | JP2 |
| Capture Device | Fujitsu fi-5650C |
| Capture Details | ScandAll 21 |
| Transcript | 50 PERFORMANCE OF WORLD'S LARGEST CYCLICAL ACTIVATED SLUDGE PROCESS TREATING COMBINED MUNICIPAL/PACKING HOUSE WASTEWATER Kevin S. Young, Vice-President J. R. Wauford & Company Consulting Engineers, Inc. Jackson, Tennessee 38305 INTRODUCTION A new cyclical activated sludge wastewater treatment plant having a design base flow hydraulic capacity of 6.0 MGD was placed on line in Union City, Tennessee in early October 1986. Influent flow consistently includes over 1.0 MGD of packing house wastewater pretreated by an anaerobic lagoon. The packing house wastewater contributes extremely high suspended solids and oxidizable nitrogen loadings to the new plant. This paper presents the startup procedure used and the process reaction to influent BOD5, suspended solids and ammonia nitrogen loadings since startup. The results of a dye tracer study at near-average design flow and two different MLVSS operating schemes are also presented. PROCESS DESIGN PARAMETERS AND DESCRIPTION The Union City plant incorporates the ICEAStm variation of the cyclical activated sludge process in a four tank configuration. The rationale for design of the Union City continuously fed-intermittemly aerated, settled and decanted activated sludge process is described in a previous paper.1 The design flows and waste loadings for the Union City cyclical activated sludge process are listed in Table I. Design effluent requirements are listed in Table II. Pretreatment includes coarse screening (one-half inch) and grit removal. No primary treatment is provided. Table I. Design Flows and Waste Loads Union City, Tennessee Parameter Value Summer Base Flow Winter Base Flow Seasonal Sustained Flow Instantaneous Peak Flow Summer BOD5 Loading Winter BOD5 Loading Summer TKN Loading Winter TKN Loading Summer Suspended Solids Loading Winter Suspended Solids Loading 4.03 MGD 6.03 MGD 9.03 MGD 15.7 MGD 4,600 LBS/DAY 6,200 LBS/DAY 2,353 LBS/DAY 2,000 LBS/DAY 6,672 LBS/DAY 10,008 LBS/DAY Table II. Effluent Requirements Union City, Tennessee BOD5 Suspended Solids Ammonia Nitrogen Dissolved Oxygen 30 mg/L 30 mg/L 15 mg/L 1.0 mg/L 483 |
| Resolution | 300 ppi |
| Color Depth | 8 bit |
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