The effect of water filter pitchers on the mineral concentration of tap water.

Loai Wadea Hazzazi, Armando E Soto-Rojas, E Angeles Martinez-Mier, Hani M Nassar, George J Eckert, Frank Lippert
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Abstract

Objectives: To investigate the effect of water filter pitchers on the concentration of different minerals in tap water.

Methods: Nine water filter pitchers (A-I) were chosen based on consumer preferences and Amazon reviews. Each filter was tested for its ability to modify the concentrations of fluoride, calcium, magnesium, potassium, and sodium in tap water. Tap water samples were collected before and after filtration, at various intervals (1, 5, 10, 30, 50, 75, and 100 L) during filtration, and analyzed using an ion-specific electrode (fluoride) and atomic absorption spectrometry (other minerals). Statistical analyses were conducted to compare filtered and unfiltered water mineral concentrations.

Results: Water filter pitcher effect: Filters F (p < 0.001) and G (p = 0.030) decreased fluoride concentrations. All filters except I (p = 0.235) and H (p = 0.717) decreased calcium concentrations (p < 0.01). Filters E (p = 0.018), D (p = 0.014), and G (p = 0.010) decreased magnesium concentrations. Filters I (p = 0.028) and D (p = 0.009) increased potassium concentrations. Filter A (p = 0.002) increased sodium concentrations, while C (p = 0.034) decreased sodium concentrations. Effect of filter aging: All filters affected mineral concentrations over time but to varying extents. Filter G had the most pronounced effect on reducing mineral concentrations compared to all others. No filter was able to completely remove fluoride from tap water, contrary to the claims made by three manufacturers.

Conclusions: The present study highlighted that water filter pitchers vary greatly in their ability to affect mineral concentrations in tap water during their use. Further research is needed to develop more effective water treatment solutions.

滤水壶对自来水矿物质浓度的影响。
目的:研究滤水壶对自来水中不同矿物质浓度的影响:研究滤水壶对自来水中不同矿物质浓度的影响:根据消费者的偏好和亚马逊的评价,选择了九款滤水壶(A-I)。测试了每种滤水器改变自来水中氟、钙、镁、钾和钠浓度的能力。在过滤前后和过滤过程中的不同时间间隔(1、5、10、30、50、75 和 100 升)收集自来水样本,并使用离子特异性电极(氟化物)和原子吸收光谱法(其他矿物质)进行分析。进行统计分析以比较过滤和未过滤水的矿物质浓度:滤水壶效应:滤芯 F(p 结论:滤芯 F(p 结论:滤芯 F(p 结论:滤芯 F(p 结论:滤芯 F(p本研究强调,滤水壶在使用过程中影响自来水中矿物质浓度的能力差别很大。需要进一步研究,以开发更有效的水处理解决方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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