Use of Chemical and Biological Agents to Improve Water Quality of Effluent Discharge from Abattoirs
Article
Article Title | Use of Chemical and Biological Agents to Improve Water Quality of Effluent Discharge from Abattoirs |
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ERA Journal ID | 5448 |
Article Category | Article |
Authors | Goopy, J. P. (Author), Murray, P. J. (Author), Lisle, A. T. (Author) and Al Jassim, R. A. M. (Author) |
Journal Title | Asian-Australasian Journal of Animal Sciences |
Journal Citation | 17 (1), pp. 137-145 |
Number of Pages | 9 |
Year | 2004 |
Place of Publication | Korea |
ISSN | 1011-2367 |
Digital Object Identifier (DOI) | https://doi.org/10.5713/ajas.2004.137 |
Web Address (URL) | https://www.animbiosci.org/journal/view.php?number=20650 |
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. |
Keywords | Ammonium; Nitrogen; Meatworks; Abattoir Effluent; Lemnaceae; Bentonite |
ANZSRC Field of Research 2020 | 410504. Surface water quality processes and contaminated sediment assessment |
410503. Groundwater quality processes and contaminated land assessment | |
300307. Environmental studies in animal production | |
410599. Pollution and contamination not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q639w/use-of-chemical-and-biological-agents-to-improve-water-quality-of-effluent-discharge-from-abattoirs
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