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Application of modern combined membrane technology in water supply treatment

 Last Update: 2021-06-18
 Source: Internet
 Author: User

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control water pollution

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In the 2008 Beijing Olympic Games, the direct drinking water technology adopted by the "Bird's Nest" applied nanofiltration membrane technology
.

The direct drinking water treatment system can provide 16 tons of drinking water per hour, which is equivalent to 50,000 bottles of 330mL bottled water, and the water quality can meet the latest national drinking water standards

Coagulation as a pretreatment of ultrafiltration shows a good effect
.

The alum flowers formed by coagulation are deposited on the surface of the membrane, and play a role of adsorbing neutral hydrophilic organics, which can improve the membrane filtration flux, slow down the membrane fouling and improve the removal effect of organics

Bastiaan Blankert et al.
used an online coagulation control system in the ultrafiltration process, which greatly reduced the amount of coagulant
.

Because online coagulation eliminates the need for a sedimentation tank, the process is simpler, and it is foreseeable that investment and water production costs will be lower

Figure 5-2 Diagram of different membrane modules

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