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Treatment of Apple Wastes Using Rotating
Biological Contactors
RICHARD W. CORNEILLE, Project Engineer
Metcalf and Eddy Engineers, Inc.
Boston, Massachusetts 02116
JAMES C. O'SHAUGHNESSY, Assistant Professor
Civil Engineering Department
Northeastern University
Boston, Massachusetts 02115
INTRODUCTION AND EXPERIMENTAL OBJECTIVES
General
The use of rotating biological contactors (RBCS), is gaining momentum in this
country. More research information and data from pilot and full scale installations is
becoming available. Process parameters for municipal waste treatment have been fairly well
established. However, information on the process applicability and advantages in treating
many industrial wastes is lacking.
Limited work has been reported on treating apple wastes from apple processing
facilities with RBCS. The highly carbohydrate apple wastes should be of the type which
responds well to biological treatment. Also, a synthetic waste can be readily made to
approximate the actual clarified food processing waste. This paper describes the results of a
bench scale study using RBCS to treat a synthetic apple waste.
Experimental Objectives
The main experimental objectives of this study were to evaluate differing operational
parameters when treating the apple waste. The effects of staging, detention time, hydraulic
loading rates, and organic loading rates were studied with regard to their affect on effluent
concentrations in terms of BOD, COD, and TOC removals.
Secondary objectives of the study included an evaluation of excess sludge production
and studying process resistance to shock organic loadings.
MATERIALS AND METHODS
Experimental Apparatus
The experimental apparatus consisted of four treatment units with three stages in each
unit. A layout of one of the units appears in Figure 1. The units were made with semicircular
plexiglass approximately 8'/2 inches in diameter and 24 inches long. The units were
separated into three stages by two baffles each with a submerged opening to pass the flow.
The flow was pumped to the units through plastic tubing perpendicular to the rotation of
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Object Description
| Purdue Identification Number | ETRIWC1975058 |
| Title | Treatment of apple wastes using rotating biological contactors |
| Author |
Corneille, Richard W. O'Shaughnessy, James C. |
| Date of Original | 1975 |
| Conference Title | Proceedings of the 30th Industrial Waste Conference |
| Conference Front Matter (copy and paste) | http://earchives.lib.purdue.edu/u?/engext,25691 |
| Extent of Original | p. 675-688 |
| 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 | 2009-06-29 |
| Capture Device | Fujitsu fi-5650C |
| Capture Details | ScandAll 21 |
| Resolution | 300 ppi |
| Color Depth | 8 bit |
Description
| Title | page675 |
| 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 |
| Capture Device | Fujitsu fi-5650C |
| Capture Details | ScandAll 21 |
| Transcript | Treatment of Apple Wastes Using Rotating Biological Contactors RICHARD W. CORNEILLE, Project Engineer Metcalf and Eddy Engineers, Inc. Boston, Massachusetts 02116 JAMES C. O'SHAUGHNESSY, Assistant Professor Civil Engineering Department Northeastern University Boston, Massachusetts 02115 INTRODUCTION AND EXPERIMENTAL OBJECTIVES General The use of rotating biological contactors (RBCS), is gaining momentum in this country. More research information and data from pilot and full scale installations is becoming available. Process parameters for municipal waste treatment have been fairly well established. However, information on the process applicability and advantages in treating many industrial wastes is lacking. Limited work has been reported on treating apple wastes from apple processing facilities with RBCS. The highly carbohydrate apple wastes should be of the type which responds well to biological treatment. Also, a synthetic waste can be readily made to approximate the actual clarified food processing waste. This paper describes the results of a bench scale study using RBCS to treat a synthetic apple waste. Experimental Objectives The main experimental objectives of this study were to evaluate differing operational parameters when treating the apple waste. The effects of staging, detention time, hydraulic loading rates, and organic loading rates were studied with regard to their affect on effluent concentrations in terms of BOD, COD, and TOC removals. Secondary objectives of the study included an evaluation of excess sludge production and studying process resistance to shock organic loadings. MATERIALS AND METHODS Experimental Apparatus The experimental apparatus consisted of four treatment units with three stages in each unit. A layout of one of the units appears in Figure 1. The units were made with semicircular plexiglass approximately 8'/2 inches in diameter and 24 inches long. The units were separated into three stages by two baffles each with a submerged opening to pass the flow. The flow was pumped to the units through plastic tubing perpendicular to the rotation of 675 |
| Resolution | 300 ppi |
| Color Depth | 8 bit |
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