Scholarlink

<p>Vanadium (V), released from both natural and anthropogenic sources, occurs in groundwater and surface waters at 0.2–100&#xa0;µg&#xa0;L<sup>−1</sup> (freshwater) and 0.2–29&#xa0;µg&#xa0;L<sup>−1</sup> (seawater). This work evaluates V removal with low-pressure membranes (MV020 and UP150) enhanced with FeCl<sub>3</sub>. The effects of Fe/V molar ratio, transmembrane pressures (TMPs), and membrane type on removal efficiency and flux performance were examined. In a 60-min operational period, V rejection at Fe/V = 0 remained below 61.8% (UP150) and 24.5% (MV020). Raising the ratio at Fe/V = 1 increased removal to 73.9% (UP150) and 53.3% (MV020); at Fe/V = 3 the values rose to 88.3% and 60.2%, respectively. In 6-h operational period with UP150 at Fe/V = 3, peak removal reached 95.1%, but progressive fouling caused flux decline; after backwashing cycles the flux partially recovered while removal stabilised around 86%. SEM–EDS and FTIR analyses confirmed Fe–V interactions on membrane surfaces. Overall, FeCl<sub>3</sub>-assisted low-pressure UF offers high V rejection with moderate chemical demand, making it a compact and energy-efficient option for decentralised water treatment.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Vanadium removal from water assisted by FeCl3 using low pressure membranes

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月4日

查看全文
  • O. K. Turk,
  • M. Cakmakci,
  • F. Acar

摘要

Vanadium (V), released from both natural and anthropogenic sources, occurs in groundwater and surface waters at 0.2–100 µg L−1 (freshwater) and 0.2–29 µg L−1 (seawater). This work evaluates V removal with low-pressure membranes (MV020 and UP150) enhanced with FeCl3. The effects of Fe/V molar ratio, transmembrane pressures (TMPs), and membrane type on removal efficiency and flux performance were examined. In a 60-min operational period, V rejection at Fe/V = 0 remained below 61.8% (UP150) and 24.5% (MV020). Raising the ratio at Fe/V = 1 increased removal to 73.9% (UP150) and 53.3% (MV020); at Fe/V = 3 the values rose to 88.3% and 60.2%, respectively. In 6-h operational period with UP150 at Fe/V = 3, peak removal reached 95.1%, but progressive fouling caused flux decline; after backwashing cycles the flux partially recovered while removal stabilised around 86%. SEM–EDS and FTIR analyses confirmed Fe–V interactions on membrane surfaces. Overall, FeCl3-assisted low-pressure UF offers high V rejection with moderate chemical demand, making it a compact and energy-efficient option for decentralised water treatment.