Biological wastewater treatment: Comparison of heterotrophs (BFT) with autotrophs (ABFT) in aquaculture systems

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The present study was conducted to compare wastewater purification capacities between heterotrophs (BFT) and autotrophs (ABFT) and to evaluate the effects on the growth of fish (Nile tilapia, Oreochromis niloticus) in aquaculture systems. The wastewater treatment capacity of heterotrophs is far superior to that of autotrophs, but the BFT system requires more energy for aquaculture than does the ABFT system. Regardless, both systems effected positive influences on fish growth performance, showing excellent water-purification capacities compared with the control group (CON). No significant differences were found between CON and ABFT or between ABFT and BFT, but there were significant differences between CON and BFT. Both systems BFT and ABFT were revealed to be cost effective in relation to CON, having reduced water replacement by 82%. Therefore, the BFT and ABFT systems could be economical aquaculture systems if due advantage is taken of what both have to offer.
Publisher
ELSEVIER SCI LTD
Issue Date
2020-01
Language
English
Article Type
Article
Citation

BIORESOURCE TECHNOLOGY, v.296

ISSN
0960-8524
DOI
10.1016/j.biortech.2019.122293
URI
http://hdl.handle.net/10203/282126
Appears in Collection
RIMS Journal Papers
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