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用离子交换法制备注射用水,具有设备简单、使用方便、适合战备等优点。目前已为部队、农村、城市基层医疗单位及药厂所广泛应用。但是,由于阴离子交换树脂吸附有机质能力有限,使用一段时间后,消除热原的作用逐渐降低以至消失。加上在野战条件下,用水水源、水质多变,需要对原水进行预处理,除去所含混悬物、微生物、有机质和热原,再进行离子交换脱盐,才能制得符合要求的注射用水。为了寻找适合野战条件下使用的原水预处理方法,曾用液体和固体聚合氯化铝进行消除热原的实验,证明效果可靠,并在一些单位中使用。随着净水剂研究的进展,为了扩大对水质碱度适应范围和提高消除有机质的效率,又进行了含磷酸根型聚合氯化铝和活性炭粉的实验,现把实验结果介绍于下。
Preparation of ion exchange water for injection, with simple equipment, easy to use, suitable for combat readiness and so on. Currently for the military, rural areas, urban primary medical units and pharmaceuticals widely used. However, due to the limited ability of the anion exchange resin to adsorb organic matter, the effect of eliminating pyrogen gradually diminishes and disappears after a period of use. Coupled with the field conditions, water sources, water quality changes, the need for pre-treatment of raw water, remove the contained suspension, microorganisms, organic matter and pyrogen, and then ion exchange desalination, in order to obtain the required water for injection. In order to find a suitable method of pretreatment of raw water for field conditions, pyrolytic experiments with liquid and solid polyaluminum chlorides have proven to be reliable and are used in some units. With the research progress of purifying agent, in order to expand the scope of alkalinity adaptation to water and improve the efficiency of eliminating organic matter, experiments of phosphate-containing PAC and activated carbon powder have also been carried out. The experimental results are introduced below.