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Water pollution by Pangasius production in the Mekong Delta, Vietnam: Causes and options for control

Anh P.T. Department of Environmental Technology and Management, Van Lang University, Ho Chi Minh City, Viet Nam|
Mol A.P.J. | Bush S.R. Environmental Policy group, Wageningen University, Wageningen, Netherlands| Kroeze C. Environmental System Analysis Group, Wageningen University, Wageningen, Netherlands|

Aquaculture Research Số 1, năm 2010 (Tập 42, trang 108-128)

ISSN: 1355557X

ISSN: 1355557X

DOI: 10.1111/j.1365-2109.2010.02578.x

Tài liệu thuộc danh mục: Scopus

Article

English

Từ khóa: anthropogenic source; biochemical oxygen demand; chemical oxygen demand; fishery production; fishing industry; nitrogen; phosphorus; sludge; suspended sediment; teleost; wastewater; water pollution; Mekong Delta; Viet Nam; Pangasianodon hypophthalmus; Pangasius
Tóm tắt tiếng anh
In this paper, we analyse water pollution caused by farming and processing Pangasianodon hypophthalmus in the Mekong Delta of Vietnam. The results show that 1 tonne of frozen fillets releases 740 kg BOD, 1020 kg COD, 2050 kg TSS, 106 kg nitrogen and 27 kg phosphorus, of which wastewater from fish ponds contributes 60-90% and sludge from fish ponds and wastewater from processing facilities contributes 3-27% of the total emissions. Overall, the combined waste emissions from Pangasius production and processing account for <1% of the total TSS, nitrogen and phosphorus loads in the Mekong Delta. Despite the relatively low contribution to water pollution, further reductions are possible through more efficient use of inputs and low-cost treatment and re-use of effluent streams. The use of cleaner production technologies and the development of wastewater treatment plants could be applied to large farms and processing facilities to reduce water pollution in Pangasius processing. Low-cost options for small-scale farms include the optimization of the discharge design for the re-use of wastewater. � 2010 The Authors. Aquaculture Research � 2010 Blackwell Publishing Ltd.

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