Sustainable aquaculture through water recycling

Jegatheesan, V. and Manicom, C. 2003, Sustainable aquaculture through water recycling, in Proceedings of the First International Symposium on Southeast Asian Water Environment, SACWET/RECWET, [Bangkok, Thailand].

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Title Sustainable aquaculture through water recycling
Author(s) Jegatheesan, V.
Manicom, C.
Conference name International Symposium on Southeast Asian Water Environment (1st : 2003 : Bangkok, Thailand)
Conference location Bangkok, Thailand
Conference dates 23-25 Oct. 2003
Title of proceedings Proceedings of the First International Symposium on Southeast Asian Water Environment
Editor(s) [Unknown]
Publication date 2003
Conference series International Symposium on Southeast Asian Water Environment
Place of publication [Bangkok, Thailand]
Keyword(s) activated carbon
engineering technology
sustainable development
water reuse
Summary The discharge of nutrient rich effluent from aquaculture systems into coastal waters is cause for concern. Direct filtration of aquaculture wastewater, using floating medium and sand with in line flocculation, and biological filtration using activated carbon, has the potential to improve water quality for recycling within aquaculture systems. This study looked at the performance of laboratory scale dual media and activated carbon filters in suspended solids and nutrient removal in the treatment of aquaculture wastewater. The dual media filter, with flocculant FeCl3 of 9mg/L, functioned best at a velocity of 7mJh with low headloss, and good turbidity and phosphorus removal (80% and 53% respectively). The activated carbon filter removed ammonia (84%) and nitrite (71 %) in the process of nitrification with a five-hour hydraulic retention time. This paper reports preliminary results from a longer term sustainable aquaculture project.
ISBN 9781843390985
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category E1.1 Full written paper - refereed
ERA Research output type E Conference publication
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Document type: Conference Paper
Collection: Faculty of Science, Engineering and Built Environment
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