Can saltwater be desalinated with nanobots?

  • Thread starter Thread starter AL168
  • Start date Start date
Click For Summary

Discussion Overview

The discussion revolves around the feasibility of desalinating saltwater using a two-step process involving magnetizing the water and employing nanobots to separate the resulting compositions. Participants explore theoretical approaches, existing technologies, and the practicality of such methods in the context of water scarcity.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants propose that magnetizing water could change its composition, allowing for desalination through nanobots.
  • Others argue that water does not possess special magnetic properties and that magnetizing it would not alter its composition or facilitate desalination.
  • One participant mentions that nanobots capable of desalination have not yet been developed and raises concerns about their potential to rust.
  • Another participant suggests that if nanobots were invented, they might be used for purposes other than desalination.
  • One contribution emphasizes that desalination requires energy, and breaking ionic bonds in saltwater would necessitate energy input, complicating the proposed method.
  • A participant raises the idea of genetically modifying bacteria to bind sodium using sunlight as a potential alternative to nanobots.
  • There is a discussion about the blurred lines between chemical reactions and mechanical methods in achieving similar outcomes.
  • Some participants express interest in existing research on nanobots for desalination and seek collaboration in this area.

Areas of Agreement / Disagreement

Participants express a range of views, with some supporting the initial idea of using magnetization and nanobots, while others challenge its feasibility based on scientific principles. There is no consensus on the proposed method, and the discussion remains unresolved.

Contextual Notes

Limitations include the lack of existing nanobot technology for desalination, the dependence on energy sources for the proposed methods, and unresolved questions about the effectiveness of magnetizing water.

AL168
Messages
1
Reaction score
0
Here is a challenge,
Can you desalinate saltwater simply by:
1) magnetizing the water (which will change the composition)
2) then using nanobots to separate the compositions.

This will enable inexpensive desalination of salt water, through inexpensive means.
Fresh water is diminishing every day, and we have an abundance of salt water. This means of de-salination will work almost instantly, providing a stream of water continuously without steaming, heating, etc. Has anyone tried it? or is willing to take on the challenge
 
Engineering news on Phys.org
AL168 said:
Here is a challenge,
Can you desalinate saltwater simply by:
1) magnetizing the water (which will change the composition)
2) then using nanobots to separate the compositions.
I have a better approach: use magic! Then again, this is basically the approach you are proposing :smile:
 
  • Like
Likes   Reactions: davenn, phinds and Bystander
Saltwater nanobots have not been made yet. They would rust being robots and all. Snicker.
 
  • Like
Likes   Reactions: russ_watters
bhusebye said:
Saltwater nanobots have not been made yet.
Right. I'm pretty sure if I invented nanobots, I'd find another use for them besides desalination.
 
AL168 said:
Can you desalinate saltwater simply by:
1) magnetizing the water (which will change the composition)
2) then using nanobots to separate the compositions.

1 No, water does not have any special magnetic properties, water subjected to a magnetic field does not change composition.
2 Therefore is not feasible, whatever kind of nanobot you are thinking of.
 
AL168. Welcome to PF.

Firstly, to desalinate water requires a source of energy. You must buy that energy, or buy something to collect that energy.

1) magnetizing the water (which will change the composition)
The problem is that the NaCl still has an ionic bond and so is neutral when in solution. You would not be able to easily use a magnet to separate the ions from a saline fluid moving through a magnetic field. It takes energy to break that bond and separate the ions.

2) then using nanobots to separate the compositions.[/QUOTE]
If nanobots were used they would need to receive energy to perform the desalination.
It is more probable that a bacteria could be genetically modified to bind sodium in sunlight. Would that be a nanobot?
 
  • Like
Likes   Reactions: krater
At some point there certainly is fuzziness,
What really is the difference between a calculated chemical reaction, and a mechanical method that produces the same result.
 
Al168,

I agree with you. I recently had the same idea and start browsing to get latest technology of nanobots and wonder if there're already applied this technique to desalinate sea water. Perhaps there already research on this topic.
If there any group who in a research in this field, I am interest to join.

Thanks for Al168 for sharing your idea.

AL168 said:
Here is a challenge,
Can you desalinate saltwater simply by:
1) magnetizing the water (which will change the composition)
2) then using nanobots to separate the compositions.

This will enable inexpensive desalination of salt water, through inexpensive means.
Fresh water is diminishing every day, and we have an abundance of salt water. This means of de-salination will work almost instantly, providing a stream of water continuously without steaming, heating, etc.Has anyone tried it? or is willing to take on the challenge
 
DrClaude said:
I have a better approach: use magic! Then again, this is basically the approach you are proposing :smile:
 
  • #10
It is usually not a good idea to add new posts to year-old threads. The original posters are not likely to see the replies or to remember the thread.

Thread closed.
 
  • Like
Likes   Reactions: russ_watters

Similar threads

  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 46 ·
2
Replies
46
Views
16K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 21 ·
Replies
21
Views
6K
  • · Replies 38 ·
2
Replies
38
Views
26K
  • · Replies 19 ·
Replies
19
Views
10K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 9 ·
Replies
9
Views
9K
  • · Replies 59 ·
2
Replies
59
Views
12K
  • · Replies 4 ·
Replies
4
Views
9K