Use Of Chemical And Biological Agents To Improve Water Quality Of Effluent Discharge From Abattoirs

Goopy, J. P., Murray, P. J., Lisle, A. T. and Al Jassim, R. A. M. (2004) Use Of Chemical And Biological Agents To Improve Water Quality Of Effluent Discharge From Abattoirs. Asian-Australasian Journal of Animal Science, 17 1: 137-145.

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Author Goopy, J. P.
Murray, P. J.
Lisle, A. T.
Al Jassim, R. A. M.
Title Use Of Chemical And Biological Agents To Improve Water Quality Of Effluent Discharge From Abattoirs
Journal name Asian-Australasian Journal of Animal Science   Check publisher's open access policy
ISSN 1011-2367
Publication date 2004-01-01
Sub-type Article (original research)
Open Access Status File (Author Post-print)
Volume 17
Issue 1
Start page 137
End page 145
Total pages 9
Editor Dr. J. K Ha (Editor-in-Chief)
Place of publication Korea
Publisher Asian-Australasian Association of Animal Production Societies
Language eng
Subject 290802 Water and Sanitary Engineering
309999 Agricultural, Veterinary and Environmental Sciences not elsewhere classified
671706 Agricultural chemicals
Abstract Intensive animal industries create large volumes of nutrient rich effluent which, if untreated, has the potential for substantial environmental degradationand to recover valuable nutrients that would otherwise be lost. Members of the family Lemnaceae are widely used in lagoon systems, to achieve inexpensive and efficient remediation of effluent. Only limited research has been conducted into their growth in highly eutrophic media and there has been little done to systematically distinguish between different types of media. This study examined the growth characteristics of duckweed in abattoir effluent and explored possible ways of ameliorating the inhibitory factors to growth on this medium. A series of pot trials was conducted to test the tolerance of duckweed to abattoir effluent partially remediated by a sojourn in anaerobic fermentation ponds, both in its unmodified form and after the addition of acid to manipulate pH, and the addition of bentonite. Unmodified abattoir effluent was highly toxic to duckweed, even at dilutions of 3:1. Duckweed remained viable and grew sub-optimally in simplified media with total ammonia nitrogen (TAN) concentrations of up to 100 mg/L. Duckweed grew vigorously in effluent diluted 1:4 v/v, containing 56 mg TAN/L when modified by addition of acid (to decrease pH to 7) and bentonite at 0.5%. The results of this study suggest that bentonite plays an important role in modifying the toxicity of abattoir effluent to duckweed.
Keyword ammonium
Agriculture, Dairy & Animal Science
Swine Lagoon Effluent
Q-Index Code C1
Additional Notes Copyright 2004 AJAS. All rights reserved.

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Created: Fri, 16 Dec 2005, 10:00:00 EST by P J McGinty on behalf of School of Land, Crop and Food Sciences