超纯水制备过程与原理简介小型生活污水一体化处理技术介绍

超纯水制备过程与原理介绍

超纯水制备是一个复杂的过程，主要包括初步吸附过滤、反渗透净化和树脂离子交换三个阶段。这些阶段共同作用，能够将电导率降低至小于20uS/cm，使得超纯水的电阻率达到大于10MΩ·cm。

在设备生产操作中，我们需要先对整个系统进行检查，确保所有连接处没有泄露，以防止污染。在检查完成后打开原水阀，并逐步开启原水泵和高压泵。我们需要监控每个过滤设备的进出口压力，以及RO系统中的流量和压力，以保证输出的超纯水符合要求。

在装用超纯水时，我们还需注意观察混床槽中的存水量，不要抽空以免影响树脂寿命。在使用完毕后，关闭总电源并关闭原水进口和超纯出入口，以防止自来水倒流损坏设备。

关于超pure water production process and principle, the first step is initial filtration, which includes filter housings, activated carbon filters, compressed activated carbon filters and guard filters. The main function of these devices is to remove impurities larger than 10um from the raw water. Activated carbon filters are used to remove chlorine gas and small molecular organic compounds by adsorption. Compressed activated carbon filters further enhance this effect to meet the requirements for reverse osmosis (RO) pre-treatment. Finally, guard filters remove remaining suspended particles greater than 5um.

The second step is reverse osmosis (RO) treatment. RO membranes have a pore size smaller than that of suspended particles in water, allowing pure water molecules to pass through while rejecting impurities.

In summary, super pure water production involves a series of processes including preliminary filtration and RO treatment with strict control over pressure differences between each stage (<0.1MPa). This ensures that the final product has an electrical conductivity lower than 20uS/cm and resistance higher than 10MΩ·cm.

Source: Baidu Baike