摘要
以实际湖水为原水,以葡萄糖溶液为汲取液,用一种便携式正渗透净水袋原理样机,研究了温度、压强等操作条件对其耐用性能的影响,探索了正渗透净水袋原理样机性能恢复的方法。结果表明,在25~45°C的范围内,随着温度的升高,净水袋原理样机的产水量在整个实验过程的衰减程度明显增大,最大可达37.72%;在0~1 700 Pa的范围内,随着压强的提高,产水量在整个实验过程的衰减程度有所增大,但增加幅度较小,衰减程度最大仅为12.85%;对受污染的正渗透膜进行简单的错流清洗即可恢复90%以上的产水量,最高可达到99.41%。
The effects of temperature and pressure on the durability performance of principled sample machine of portable forward osmosis water purifying bag were investigated using actual lake water as raw water, glucose solution as draw solution respectively.Then we explored the way for FO membrane performance resumption. It was found that, in the temperature ranging from 25°C to 45°C, as the temperature increased, the decreasing amplitude of principled sample machine’s water production in the whole performance period would ascend observably, which could reach the maximum value of 37.72%; in the pressure ranging from 0 to 1 700 Pa, as the pressure went up, although the decreasing amplitude of principled sample machine’s water production in the whole performance period would ascend, the amplification is not in wide with the highest decreasing amplitude of 12.85%; more than 90% of water production can be recovered after a simple water cross-flow rinsing on the contaminated FO membrane with the highest value of 99.41%.
出处
《环境科技》
2015年第4期33-37,共5页
Environmental Science and Technology
基金
重庆市重大科技攻关项目资助(cstc2012gg-sfgc00002)
2013年重庆高校创新团队建设计划资助项目(KJTD201340)
关键词
正渗透
净水袋
温度
压力
产水量
耐用性
Forward osmosis
Water purifying bag
Temperature
Pressure
Water production
Durability Performance
