[Prepper] Off-grid DIY thread

[Huat Zai]

38 minutes ago, The_King said:

this video got ban by YT.

 

knoweldge is power

 

https://rumble.com/vy8s04-turpentine-uses-and-benefits.html

Err,  heroin was used in pop sodas, there's a reason why all these have been removed...

[Huat Zai]

 

I should probably practice a lot more with clips than my tools..

[The_King]

https://www.youtube.com/watch?v=WqJtKztG8u0

 

 

lol, she copy me, hahaha

 

i also need a dehydrator + portable induction cooker, a mutli story shelf (but my is all cover up and not as much space (may change when i see the real home)

Edited April 12, 2022 by The_King

[The_King]

i also wanted this and try to find way to install in my home but it just too big

 

 

[The_King]

 

 

 

mine is this

 

[Huat Zai]

 

[The_King]

i am so jelly of this room

 

 

[The_King]

@Huat Zai

 

 

how do you categorize them together in word? what the correct word?

 

off grid, homestead, self sufficient, self sustaining, DIY, prepper

 

 

thanks

[Huat Zai]

7 hours ago, The_King said:

@Huat Zai

 

 

how do you categorize them together in word? what the correct word?

 

off grid, homestead, self sufficient, self sustaining, DIY, prepper

 

 

thanks

 

To be honest, I don't think the labels are so clearly defined, they all have elements of each other that are inseparable. My take is that the only thing that separates them is whether you wear a tinfoil hat, and if that hat comes with tinfoil underwear. 

[The_King]

1 hour ago, Huat Zai said:

 

To be honest, I don't think the labels are so clearly defined, they all have elements of each other that are inseparable. My take is that the only thing that separates them is whether you wear a tinfoil hat, and if that hat comes with tinfoil underwear. 

i need a name for my video. any idea what the best?

 

home preparedness?

 

[Huat Zai]

30 minutes ago, The_King said:

i need a name for my video. any idea what the best?

 

home preparedness?

 

If you want more views, I would go with Home DIY, appeal to a wider viewership.

[The_King]

53 minutes ago, Huat Zai said:

If you want more views, I would go with Home DIY, appeal to a wider viewership.

Thanks, good choice, anything about home should be home diy.

 

So no more headache for me

[The_King]

2 hours ago, The_King said:

Thanks, good choice, anything about home should be home diy.

 

So no more headache for me

hope my tile will not be weird

 

like this video for example

 

Minimalist 4-RM HDB Resale Flat without an ID | White, Airy & Bright Home Tour | The Lim Haus

 

 

 

 

mine should be say 

Ep 1. Minimalist 4-RM HDB Resale Flat without an ID | Home DIY

Ep 2 home reno design | Home DIY

 

etc..?

 

sound ok?

 

[Huat Zai]

1 hour ago, The_King said:

hope my tile will not be weird

 

like this video for example

 

Minimalist 4-RM HDB Resale Flat without an ID | White, Airy & Bright Home Tour | The Lim Haus

 

 

 

 

mine should be say 

Ep 1. Minimalist 4-RM HDB Resale Flat without an ID | Home DIY

Ep 2 home reno design | Home DIY

 

etc..?

 

sound ok?

 

All that not important, the most important points of the example you gave were

1. Chiobu

2. low cut

[The_King]

i thought i can save money by printing (heng my cousin pay but he dont know i at his home) but the book so thick, how to bring out to read and use as shtf

 

 

 

 

 

the real book so much smaller

 

 

Update: his laser printer toner was full, now left 50%

 

Muhahahahaha

Edited April 29, 2022 by The_King

[Huat Zai]

From seawater to drinking water, with the push of a button

 

 

The user-friendly unit, which weighs less than 10 kilograms and does not require the use of filters, can be powered by a small, portable solar panel. Credit: M. Scott Brauer

MIT researchers have developed a portable desalination unit, weighing less than 10 kilograms, that can remove particles and salts to generate drinking water.

The suitcase-sized device, which requires less power to operate than a cell phone charger, can also be driven by a small, portable solar panel, which can be purchased online for around $50. It automatically generates drinking water that exceeds World Health Organization quality standards. The technology is packaged into a user-friendly device that runs with the push of one button.

Unlike other portable desalination units that require water to pass through filters, this device utilizes electrical power to remove particles from drinking water. Eliminating the need for replacement filters greatly reduces the long-term maintenance requirements.

This could enable the unit to be deployed in remote and severely resource-limited areas, such as communities on small islands or aboard seafaring cargo ships. It could also be used to aid refugees fleeing natural disasters or by soldiers carrying out long-term military operations.

"This is really the culmination of a 10-year journey that I and my group have been on. We worked for years on the physics behind individual desalination processes, but pushing all those advances into a box, building a system, and demonstrating it in the ocean, that was a really meaningful and rewarding experience for me," says senior author Jongyoon Han, a professor of electrical engineering and computer science and of biological engineering, and a member of the Research Laboratory of Electronics (RLE).

Joining Han on the paper are first author Junghyo Yoon, a research scientist in RLE; Hyukjin J. Kwon, a former postdoc; SungKu Kang, a postdoc at Northeastern University; and Eric Brack of the U.S. Army Combat Capabilities Development Command (DEVCOM). The research has been published online in Environmental Science and Technology.

 

 

MIT researchers have created a portable desalination unit that can automatically remove particles and salts simultaneously to generate drinking water. “This is really the culmination of a 10-year journey that I and my group have been on,” says senior author Jongyoon Han, right, pictured with Junghyo Yoon, seated. Credit: M. Scott Brauer

Filter-free technology

Commercially available portable desalination units typically require high-pressure pumps to push water through filters, which are very difficult to miniaturize without compromising the energy-efficiency of the device, explains Yoon.

 

Instead, their unit relies on a technique called ion concentration polarization (ICP), which was pioneered by Han's group more than 10 years ago. Rather than filtering water, the ICP process applies an electrical field to membranes placed above and below a channel of water. The membranes repel positively or negatively charged particles—including salt molecules, bacteria, and viruses—as they flow past. The charged particles are funneled into a second stream of water that is eventually discharged.

 

 

The process removes both dissolved and suspended solids, allowing clean water to pass through the channel. Since it only requires a low-pressure pump, ICP uses less energy than other techniques.

But ICP does not always remove all the salts floating in the middle of the channel. So the researchers incorporated a second process, known as electrodialysis, to remove remaining salt ions.

Yoon and Kang used machine learning to find the ideal combination of ICP and electrodialysis modules. The optimal setup includes a two-stage ICP process, with water flowing through six modules in the first stage then through three in the second stage, followed by a single electrodialysis process. This minimized energy usage while ensuring the process remains self-cleaning.

"While it is true that some charged particles could be captured on the ion exchange membrane, if they get trapped, we just reverse the polarity of the electric field and the charged particles can be easily removed," Yoon explains.

They shrunk and stacked the ICP and electrodialysis modules to improve their energy efficiency and enable them to fit inside a portable device. The researchers designed the device for nonexperts, with just one button to launch the automatic desalination and purification process. Once the salinity level and the number of particles decrease to specific thresholds, the device notifies the user that the water is drinkable.

The researchers also created a smartphone app that can control the unit wirelessly and report real-time data on power consumption and water salinity.

Beach tests

After running lab experiments using water with different salinity and turbidity (cloudiness) levels, they field-tested the device at Boston's Carson Beach.

Yoon and Kwon set the box near the shore and tossed the feed tube into the water. In about half an hour, the device had filled a plastic drinking cup with clear, drinkable water.

"It was successful even in its first run, which was quite exciting and surprising. But I think the main reason we were successful is the accumulation of all these little advances that we made along the way," Han says.

The resulting water exceeded World Health Organization quality guidelines, and the unit reduced the amount of suspended solids by at least a factor of 10. Their prototype generates drinking water at a rate of 0.3 liters per hour, and requires only 20 watts of power per liter.

"Right now, we are pushing our research to scale up that production rate," Yoon says.

One of the biggest challenges of designing the portable system was engineering an intuitive device that could be used by anyone, Han says.

Yoon hopes to make the device more user-friendly and improve its energy efficiency and production rate through a startup he plans to launch to commercialize the technology.

In the lab, Han wants to apply the lessons he's learned over the past decade to water-quality issues that go beyond desalination, such as rapidly detecting contaminants in drinking water.

"This is definitely an exciting project, and I am proud of the progress we have made so far, but there is still a lot of work to do," he says.

For example, while "development of portable systems using electro-membrane processes is an original and exciting direction in off-grid, small-scale desalination," the effects of fouling, especially if the water has high turbidity, could significantly increase maintenance requirements and energy costs, notes Nidal Hilal, professor of engineering and director of the New York University Abu Dhabi Water research center, who was not involved with this research.

"Another limitation is the use of expensive materials," he adds. "It would be interesting to see similar systems with low-cost materials in place."

 

https://techxplore.com/news/2022-04-seawater-button.html

[Huat Zai]

 

No, don't get the shitty gotex boots that they issue to our soldiers here.

[The_King]

 

 

[Huat Zai]

 

 

 

[Huat Zai]

 

[The_King]

 

[Huat Zai]

22 minutes ago, The_King said:

 

Looks pretty tough on clothes though, all the delicate will chui. Probably need to wash separately.

[The_King]

3 minutes ago, Huat Zai said:

Looks pretty tough on clothes though, all the delicate will chui. Probably need to wash separately.

her machine cost moeny to buy, i prefer this

 

 

[Huat Zai]

1 minute ago, The_King said:

her machine cost moeny to buy, i prefer this

 

 

Your solutions all very rough on clothes, think if really blackout I'll just toss everything into a barrel and

 

 

 

[The_King]

2 minutes ago, Huat Zai said:

Your solutions all very rough on clothes, think if really blackout I'll just toss everything into a barrel and

 

 

 

how to roll in my 2 room?

 

the washing bucket is the cheapest and more lasting. if gentle here a few