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<p>Shrimp farming encounters numerous global difficulties, especially viral, bacterial, and fungal illnesses, notably the white spot syndrome virus (WSSV), which can result in fatality rates of up to 100%. A proficient recirculating water system is essential to guarantee that the recirculated water is devoid of germs, parasites, and viruses. Thus, this study examines whether an ultrafiltration (UF) membrane system is appropriate for controlling viruses in shrimp cultivation water. Polyvinylidene fluoride (PVDF) membranes with molecular weight cut-offs (MWCO) of 30, 40, and 60&#xa0;kDa were utilized in finding the ideal pore size for the removal of WSSV. The findings demonstrated that at a transmembrane pressure of 0.3&#xa0;bar and a crossflow velocity of 3 L/min, a molecular weight cut-off of 30&#xa0;kDa was sufficient to eliminate the virus. The membrane system’s virus elimination efficacy was evaluated using distilled and pond water contaminated with WSSV. The filtered pond water tested positive for WSSV alone for the initial 20&#xa0;min of filtration and was undetectable after 40&#xa0;min. In both investigations, WSSV DNA in distilled water and aquaculture effluent was effectively eliminated using membrane filtration at temperatures of 30 to 40&#xa0;°C for durations exceeding 120&#xa0;min and 20 to 40&#xa0;min, respectively.</p>

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Ultrafiltration process for white spot syndrome virus (WSSV) mitigation strategy in indoor shrimp farming system

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年5月29日

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  • Diyana Kamarudin,
  • Nora’aini Ali,
  • Norhafiza I. Yatim,
  • Sandra C. Zainathan,
  • Siti N. K. Addis,
  • Che A. C. Johan,
  • Nor A. Kasan

摘要

Shrimp farming encounters numerous global difficulties, especially viral, bacterial, and fungal illnesses, notably the white spot syndrome virus (WSSV), which can result in fatality rates of up to 100%. A proficient recirculating water system is essential to guarantee that the recirculated water is devoid of germs, parasites, and viruses. Thus, this study examines whether an ultrafiltration (UF) membrane system is appropriate for controlling viruses in shrimp cultivation water. Polyvinylidene fluoride (PVDF) membranes with molecular weight cut-offs (MWCO) of 30, 40, and 60 kDa were utilized in finding the ideal pore size for the removal of WSSV. The findings demonstrated that at a transmembrane pressure of 0.3 bar and a crossflow velocity of 3 L/min, a molecular weight cut-off of 30 kDa was sufficient to eliminate the virus. The membrane system’s virus elimination efficacy was evaluated using distilled and pond water contaminated with WSSV. The filtered pond water tested positive for WSSV alone for the initial 20 min of filtration and was undetectable after 40 min. In both investigations, WSSV DNA in distilled water and aquaculture effluent was effectively eliminated using membrane filtration at temperatures of 30 to 40 °C for durations exceeding 120 min and 20 to 40 min, respectively.