Performance of recirculation aquaponic system in treating aquaculture wastewater.

Endut, Azizah and Jusoh, Ahmad and Ali, Nora’aini and Wan Nik, Wan Sani and Hassan, Anuar Performance of recirculation aquaponic system in treating aquaculture wastewater. In: Conference on Industry Best Practices, 19-21 May 2009, PWTC, Kuala Lumpur, Malaysia.

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2009 April 30 (Performance of recirculation aquaponic system in treating aquaculture wastewater) by Azizah.pdf
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Nutrients removal such as inorganic nitrogen and phosphate is essential for aquaculture wastewater treatment to protect receiving waters from eutrophication. In this study hydroponic trough planted with water spinach (Ipomoea aquatica) was integrated with a pilot-scale recirculation aquaponic system (RAS) for African catfish (Clarias gariepinus) culture. This study was carried out at an average inflow rate of 27 ml/sec to investigate performance of recirculation aquaponic system for controlling water quality. The results showed that, RAS effectively removed 5-day biochemical oxygen demand (65%), total suspended solids (83%), total ammonia nitrogen (78%), nitrite-nitrogen (89%), nitrate-nitrogen (65%), and total phosphorus (53%). This led to a water quality that was suitable for African catfish culture and effluent that always satisfied the discharge standard. The overall feed conversion ratio (FCR) and specific growth rate (SGR) are 1.22 g/g and 2.20 %/day respectively. Integration of water spinach into African catfish culture system is among the best alternatives for achieving economic and environmental sustainability.

Item Type: Conference or Workshop Item (Paper)
Keywords: African catfish, Aquaponic, Hydroponic, Recirculation aquaculture system,Water spinach.
Subjects: Q Science > Q Science (General)
Faculty / Institute: East Coast Environmental Research Institute (ESERI)
Depositing User: AP DR AZIZAH ENDUT
Date Deposited: 08 Nov 2015 04:32
Last Modified: 08 Nov 2015 06:32

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