净水器铅加标测试研究

Study on Lead Labeling Test of Water Purifier

对市场上活性炭、超滤、反渗透3类净水器进行弱碱性加标测试研究,结果表明反渗透类净水器对铅去除率可达到90%以上;超滤类净水器对铅去除率不到50%,而活性炭吸附类净水器几乎没有对铅去除的能力。此外,还研究了弱酸性和弱碱性铅加标液对净水器寿命与铅去除率的影响,结果表明两种铅加标液对净水器寿命均有影响,与弱酸性加标液相比,弱碱性铅加标液会导致净水器寿命衰减更快。

The weak alkalinity of activated carbon, ultrafiltration and reverse osmosis water purifiers in the market was tested and studied. The results showed that the lead removal rate of reverse osmosis water purifier could reach more than 90%;The lead removal rate of ultrafiltration water purifier was less than 50%, while the activated carbon adsorption water purifier had almost no lead removal ability. In addition, the effects of weak acid and weak alkaline lead adding liquids on the water purifier life and lead removal rate was also studied. The results showed that the two lead spiked solutions had an impact on the service life of water purifier. Compared with weak acidic spiked solution, weak alkaline lead spiked solution could lead to faster attenuation of service life of water purifier.