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Development and Operation of a Low Cost Anaerobic Plant for Meat Wastes MAXWELL B. RANDS, Chief Chemist D. E. COOPER, Research Chemist Auckland Farmers' Freezing Cooperative Ltd. Auckland, New Zealand INTRODUCTION In anticipation of legislation on water pollution control, the study of meat waste treatment was commenced by Auckland Export Meat Packing Companies about 1950 in cooperation with the Auckland Metropolitan Drainage Board which assisted with laboratory and pilot plant studies (1). About this time also, considerable interest was taken in the work of Buswell (2), and that of Fullen and Associates (3), and Steffan (4) on the disposal of meat wastes by anaerobic digestion. The Moerewa treatment plant, which is the subject of this paper, handles the effluent of the northernmost meat packing plant in New Zealand in a mild climate with a temperature range of 10 to 25 C. The only water course available for receiving effluent is a small stream of approximately 20 cfs dry weather flow. Following encouraging pilot plant results it was decided to develop an anaerobic plant on the lines of those evolving overseas, but modified if necessary to suit the local conditions. The general layout of the present plant is shown in Figure 1. STANDARDS OF PURIFICATION The New Zealand Waters Pollution Act was passed in 1953 and was followed in 1963 by the regulations and explanatory booklet (5), which specify the minimum set of conditions for receiving waters. By putting the emphasis on the quality of the receiving water, rather than by giving directions as to treatment, the regulations provide for treatments of effluents according to their strength, the dilution factor and state of purity of the receiving waters. NATURE OF RAW WASTES Slaughtering Capacity The Moerewa plant is a comparatively small works by New Zealand standards. The slaughtering capacities for the various classes of animal are: Cattle 720 Per Day Lambs 7,000 Per Day Sheep 6,000 Per Day Bobby Calves 4,500 Per Day Pigs 600 Per Day - 613 -
Object Description
Purdue Identification Number | ETRIWC196652 |
Title | Development and operation of a low cost anaerobic plant for meat wastes |
Author |
Rands, Maxwell B. Cooper, D. E. |
Date of Original | 1966 |
Conference Title | Proceedings of the 21st Industrial Waste Conference |
Conference Front Matter (copy and paste) | http://earchives.lib.purdue.edu/u?/engext,12965 |
Extent of Original | p. 613-638 |
Series |
Engineering extension series no. 121 Engineering bulletin v. 50, no. 2 |
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 | 2009-05-20 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Resolution | 300 ppi |
Color Depth | 8 bit |
Description
Title | page 613 |
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 | Development and Operation of a Low Cost Anaerobic Plant for Meat Wastes MAXWELL B. RANDS, Chief Chemist D. E. COOPER, Research Chemist Auckland Farmers' Freezing Cooperative Ltd. Auckland, New Zealand INTRODUCTION In anticipation of legislation on water pollution control, the study of meat waste treatment was commenced by Auckland Export Meat Packing Companies about 1950 in cooperation with the Auckland Metropolitan Drainage Board which assisted with laboratory and pilot plant studies (1). About this time also, considerable interest was taken in the work of Buswell (2), and that of Fullen and Associates (3), and Steffan (4) on the disposal of meat wastes by anaerobic digestion. The Moerewa treatment plant, which is the subject of this paper, handles the effluent of the northernmost meat packing plant in New Zealand in a mild climate with a temperature range of 10 to 25 C. The only water course available for receiving effluent is a small stream of approximately 20 cfs dry weather flow. Following encouraging pilot plant results it was decided to develop an anaerobic plant on the lines of those evolving overseas, but modified if necessary to suit the local conditions. The general layout of the present plant is shown in Figure 1. STANDARDS OF PURIFICATION The New Zealand Waters Pollution Act was passed in 1953 and was followed in 1963 by the regulations and explanatory booklet (5), which specify the minimum set of conditions for receiving waters. By putting the emphasis on the quality of the receiving water, rather than by giving directions as to treatment, the regulations provide for treatments of effluents according to their strength, the dilution factor and state of purity of the receiving waters. NATURE OF RAW WASTES Slaughtering Capacity The Moerewa plant is a comparatively small works by New Zealand standards. The slaughtering capacities for the various classes of animal are: Cattle 720 Per Day Lambs 7,000 Per Day Sheep 6,000 Per Day Bobby Calves 4,500 Per Day Pigs 600 Per Day - 613 - |
Resolution | 300 ppi |
Color Depth | 8 bit |
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