Abstract
This study examines the environmental consequences arising from pond “tra” fish breeding in the Mekong Delta. It explores technically and economically feasible wastewater treatment options for bringing water pollution down to an acceptable level in accordance with Vietnam’s environmental standards. Results show that the farmers’ practice of exchanging water between fishponds and outside water bodies is one of the main causes of surface water pollution in tra fish-breeding areas. Water sample analysis indicated that the COD concentration in tra pond water was 34 mg/l, exceeding the limit of <10 mg/l according to Vietnam’s surface water quality standards (TCVN 5942-1995, class A). The pollution load rate in terms of COD per kilogram of fish produced was 0.098.
To cope with the pollution situation more effectively, some technical pollution control options are proposed, of which the trickling filter technology was found to be the most cost-effective. Some policy recommendations to address the environmental pollution caused by pond tra fish production in the Mekong Delta are also given.
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References
Can Tho Statistical Yearbook (2003) Can Tho Province Statistics Department, Can Tho City, Vietnam
Can Tho Statistical Yearbook (2004) Can Tho Province Statistics Department, Can Tho City, Vietnam
Field BC, Olewiler ND (2005) Environmental economics (Updated second Canadian edition), McGraw-Hill Ryerson Limited, Canada
Ky QV (2004) Research report on tra and basa fishpond water treatment options in Thotnot District. Can Tho City Environmental Monitoring Station, Can Tho City (In Vietnamese)
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© 2015 Springer Science+Business Media Singapore
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Vo, T.L., Ky, Q.V., Ngo, T.T.T. (2015). Environmental Consequences of and Pollution Control Options for Pond “Tra” Fish Production in Thotnot District, Can Tho City, Vietnam. In: James, D., Francisco, H. (eds) Cost-Benefit Studies of Natural Resource Management in Southeast Asia. Springer, Singapore. https://doi.org/10.1007/978-981-287-393-4_8
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DOI: https://doi.org/10.1007/978-981-287-393-4_8
Publisher Name: Springer, Singapore
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