Method for desalting seawater by adopting porous graphene
A porous graphene, graphene technology, applied in chemical instruments and methods, seawater treatment, multi-stage water treatment, etc., can solve the problems of time-consuming and laborious cleaning, high cost of reverse osmosis technology, easy blockage, etc. High efficiency and anti-clogging effect
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Embodiment 1
[0038] Such as figure 1 As shown, the present embodiment provides a method for desalinating seawater using porous graphene, comprising the following steps:
[0039] S1. Seawater pretreatment: Pretreatment of seawater, the ambient temperature is lower than 25°C, and repeated filtration to obtain seawater that can be used for desalination, as follows:
[0040] S11. The seawater first filters large-volume garbage and algae through the interception net, and the interception net can be nylon net or steel wire net;
[0041] S12. Then filter free substances, microorganisms and heavy metal ions in seawater through an activated carbon filter;
[0042] S13. Use a 60-100-mesh filter to screen out fine sand and mud to obtain seawater with suspended matter less than 50 mg / L that can be used for desalination.
[0043] S2. Desalination treatment: the seawater that can be used for desalination in step S1 is desalinated and desalted through a porous graphene tank, and the ambient temperature...
Embodiment 2
[0056] Such as Figure 2-5 As shown, this embodiment provides a seawater desalination device used in Embodiment 1, including a seawater pretreatment unit, an automatic cleaning unit, a porous graphene desalination unit and a water storage unit;
[0057] The seawater pretreatment unit includes an interception net 1, a water intake pipe 2, a first water pump 3, and a filter 4 in sequence according to the order of seawater pretreatment. The water inlet of the first water pump 3 is connected to the water intake pipe 2, and the water outlet is connected to the porous graphene desalination unit Seawater enters interception net 1, water intake pipe 2 and filter 4 successively after being sucked in by first water pump 3, and filter 4 is connected with porous graphene desalination unit, and wherein interception net 1 can be nylon net or steel wire net, is located at the intake Outside the water pipe 2, it is used to intercept large-volume substances, and the filter 4 is an activated ca...
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