一、官方网站膜组分的污染物
在官方网站膜设备运行一段时间后，官方网站膜元件将被水中的悬浮固体或不溶物质污染。这些污染物中比较常见的是碳酸钙垢，硫酸钙垢，金属氧化物垢和硅沉积物。和有机或生物沉积物。污染物的性质和污染率与供水条件有关。污染正在慢慢发展。如果不及早采取措施，污染将损害官方网站膜元件的性能并在相对短的时间内减少官方网站膜的使用时间。
定期检查系统的整体性能是确认膜组件污染的好方法。不同的污染物会对膜组件的性能造成不同程度的损害。
二、去除官方网站膜污染物
官方网站膜污染物的去除可以通过化学清洗和物理冲洗来实现，有时通过改变操作条件来实现。作为一般规则，当发生下列情况之一时，应进行官方网站膜清洁。
1.在常压下，产出水的水流量下降到正常值的10到15%。
2.为了保持产品的出水流量，经过温度校正的给水压力增加10到15？
3.官方网站水的水质降低10至15℃，盐渗透率增加10至15℃
4.使用压力增加10到15？
5. RO膜的压差在不同时间段内显着增加。
三、官方网站膜的常见污染物及其去除方法：
1，碳酸钙垢
当阻垢剂添加系统失效或出现酸系统时，进水的pH升高，然后可沉积碳酸钙。应尽早发现碳酸钙垢的沉淀，以防止晶体在官方网站膜表面生长。造成损害，并且早期发现碳酸钙垢。可以通过将进料水的pH值在3.0和5.0之间运行1至2小时来除去。对于沉淀时间较长的碳酸钙垢，应使用柠檬酸清洗液进行循环清洗或过夜浸泡。
确保任何清洁溶液的pH值不低于2.0，否则可能会对RO膜元件造成损坏，尤其是在温度较高时。比较高pH值不应高于11.0。使用氨来增加pH值，使用硫酸或盐酸来降低pH值。
2，硫酸钙垢
清洁溶液是从官方网站膜表面除去硫酸钙垢的比较佳方法。
3，金属氧化物垢
可以使用如上所述的去除碳酸钙垢的方法除去沉积的氢氧化物。
4，硅标度
对于不与金属化或有机材料共生的硅垢，它们只能通过特殊的清洁方法去除。详细方法是联系海德能源。
5，有机沉积物
可以用清洁溶液除去有机沉积物（例如微生物粘液或霉菌）。为了防止再传播，应使用专业的灭菌解决方案在系统中循环和浸泡。通常，浸泡它需要很长时间，例如官方网站设备。使用三天后，必须进行消毒。
四、清洗官方网站膜组件的一般步骤：
1.将清洁，无游离的无氯官方网站产品水从清洗罐泵入压力容器并将其排出几分钟。
2.使用干净的产品水在清洁槽中准备清洁溶液。
3.将清洁溶液在压力容器中循环1小时或预设时间。
4.清洁完成后，排空清洗槽并冲洗，然后用清洁的产品水填充清洗槽进行进一步清洗。
5.冲洗官方网站系统后，运行官方网站系统，打开产品排水阀，直至产品水清洁，无泡沫或无清洁剂。
官方网站膜需要定期冲洗，如果官方网站膜受到污染后要清洗消毒，保证官方网站设备运行正常、出水水质合格。
I. contaminants of reverse osmosis membrane components
After the reverse osmosis membrane equipment runs for a period of time, the reverse osmosis membrane elements will be contaminated by suspended solids or insoluble substances in the water. The most common of these pollutants are calcium carbonate scale, calcium sulfate scale, metal oxide scale and silicon sediment. And organic or biological sediments. The nature and rate of pollutants are related to water supply conditions. Pollution is slowly developing. If measures are not taken early, pollution will damage the performance of reverse osmosis membrane elements and reduce the use time of reverse osmosis membrane in a relatively short period of time.
Regular inspection of the overall performance of the system is a good way to identify membrane component contamination. Different pollutants will damage the performance of membrane components to different degrees.
Remove reverse osmosis membrane pollutants
The removal of pollutants from reverse osmosis membrane can be achieved by chemical cleaning and physical flushing, and sometimes by changing operating conditions. As a general rule, reverse osmosis membrane cleaning should be performed when one of the following conditions occurs.
1. At normal pressure, the flow of produced water drops to 10 to 15% of normal.
2. To maintain the water flow of the product, increase the feed pressure through temperature correction by 10 to 15?
3. Reverse osmosis water quality decreased by 10 to 15℃, salt permeability increased by 10 to 15℃
4. Increased stress by 10 to 15?
5. The pressure difference of RO membrane increased significantly in different time periods.
Common pollutants in reverse osmosis membrane and their removal methods:
1. Calcium carbonate scale
When a scale inhibitor is added to the system, or an acid system occurs, the pH of the water increases, and then calcium carbonate can be deposited. The deposit of calcium carbonate scale should be found as early as possible to prevent the crystal from growing on the surface of reverse osmosis membrane. Cause damage, and early detection of calcium carbonate scale. This can be removed by running the feed water pH between 3.0 and 5.0 for 1 to 2 hours. For calcium carbonate scale with long precipitation time, citric acid cleaning solution should be used for circular cleaning or overnight soaking.
Make sure that any cleaning solution has a pH of no less than 2.0, otherwise damage to the RO membrane elements may occur, especially at high temperatures. The maximum pH value should not be higher than 11.0. Use ammonia to increase the pH and sulfuric or hydrochloric acid to decrease the pH.
2. Calcium sulfate scale
Cleaning solution is the best way to remove calcium sulfate scale from reverse osmosis membrane surface.
3, metal oxide scale
The deposited hydroxide can be removed using the method described above for removing calcium carbonate scale.
4. Silicon scale
For silicon stains that do not co-exist with metallized or organic materials, they can only be removed by special cleaning methods. The detailed method is to contact Hyde energy.
5. Organic sediments
Organic sediments (such as microbial slime or mold) can be removed with a cleaning solution. To prevent re-transmission, a professional sterilization solution should be used to circulate and soak the system. Usually, it takes a long time to soak, such as reverse osmosis equipment. After three days, it must be sterilized.
General steps for cleaning reverse osmosis membrane components:
1. Pump clean, free, chlorine-free reverse osmosis product water from the cleaning tank to the pressure vessel and discharge it for several minutes.
2. Prepare a cleaning solution in a cleaning tank using clean product water.
3. Circulate the cleaning solution in the pressure vessel for 1 hour or a preset time.
4. After cleaning, empty the cleaning tank and rinse, and then fill the cleaning tank with clean product water for further cleaning.
5. After flushing the reverse osmosis system, run the reverse osmosis system and open the product drainage valve until the product water is clean without foam or detergent.
Reverse osmosis membrane needs to be washed regularly. If the reverse osmosis membrane is polluted, it should be cleaned and disinfected to ensure the normal operation of reverse osmosis equipment and qualified effluent quality.
