4.7 Article

Implementation of a constructed wetland for the sustainable treatment of inland shrimp farming water

期刊

JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 279, 期 -, 页码 -

出版社

ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2020.111782

关键词

Shrimp culture; Constructed wetland; Nitrification; Denitrification; Pathogen removal; Continuous water reuse; Vietnam

资金

  1. Vietnam National University Ho Chi Minh City (VNU-HCM) [TX 2020-2401]
  2. CODEV
  3. etuRESCIF (EPFL)

向作者/读者索取更多资源

The project describes the implementation of a laboratory-based continuous closed recirculation aquaculture system in the Mekong delta region. The system utilizes a constructed wetland as a water treatment filter, operating under high loading rate conditions and significantly improving shrimp culture water quality.
In the Mekong delta, inland-based shrimp breeding requires significant inflow of high-quality freshwater. In turn, discharge of substantial loads of poor-quality effluents negatively impacts adjacent water bodies and favors disease outbreaks. This project describes the implementation of a laboratory-based continuous closed recirculation aquaculture system composed of a constructed wetland (CW) with horizontal subsurface flow as a water treatment filter for mesohaline conditions, functioning under high loading rate (HLR = 1.54 m/d with HRT = 1.31 h). This CW was equipped of successive compartment dedicated to the successive elimination of the contaminants of interests. CW performance was measured over a complete growth cycle of the White-leg shrimps (Litopenaeus vannamei). Results showed that the designed system was pertinent, improving water quality of the shrimp culture substantially. Complete removal of nitrite was attained, with a concomitant reduction of respectively 78% and 76% of nitrate and COD. Bacteria enumeration tests showed that Vibrio sp. cells were fully removed, and that a 3 Log reduction was reached in total aerobic bacteria.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据