Using a water hose or hosepipes to clean a desert environment can be an effective way to get rid of bacteria and algae, and the process can also remove some contaminants that might otherwise be present.
The technique, which is also known as disinfection or scrubbing, involves removing all the contaminants, such as salt and minerals, from a desert water source and leaving a clean stream of water behind.
While this method can be effective in a small amount of time, it is less effective when compared to cleaning with hand-held devices like hand-washing machines or vacuuming.
But it can also work for larger desert landscapes.
In one study, researchers used a hand-powered water purifier that could purify about 1,000 gallons of water per minute.
“It is a very effective way of cleaning up an entire landscape,” said study co-author Eric Kohn, a professor of geography and environmental studies at Ohio State University.
In addition to removing harmful contaminants, the process also can help to remove water and other pollutants from the environment, as well as to reduce pollution from runoff from farm runoff, irrigation and waste treatment plants.
“In terms of environmental health, I think it is really a really good thing because it reduces the environmental footprint and the pollution associated with the waste disposal,” Kohn said.
“And it can actually be very cheap.”
In addition, he added, the purification process can help remove some pollutants from agricultural land, which might otherwise leach into groundwater, or help clean up polluted groundwater in the cities where desert populations live.
“We have a lot of waste management issues in the desert, so if you can get rid a lot or all of the pollution in a desert, that can be really beneficial,” Kato said.
The process is particularly effective when combined with a handwashing machine or other cleaning equipment.
But it can be used to clean the environment in many ways, including removing bacteria and mold, as long as it’s done with the right amount of water.
In some cases, like cleaning a desert site with a water purification machine, the clean water will be diluted, but in other cases, the water will need to be pumped to a clean source.
“I think that’s really important,” Kami said.
“If you are using hand washing equipment, it might not be an option because the water might not work.”
While water purifiers are useful in large deserts, it can take some time to get the process right.
Kato’s study looked at using a machine for about 20 minutes a day for two weeks, or less than two hours, on a large desert landscape.
The machines in his study could be used on a desert scene of 10,000 acres, or one-third of the surface area of California.
“There’s a big difference in what we can accomplish with hand washing versus using a vacuum pump, which will take a lot longer,” Kano said.
But, he said, the benefits of hand washing outweigh the drawbacks.
For example, the machine removes more contaminants from the air than a vacuum.
And the machine cleans up water that gets into your mouth and nose, and that’s also a major source of pollution.
The study also used a similar process to purify a city water supply.
“If you want to clean it, you don’t need to clean everything,” Katsumoto said.
He added that while the machines in the study were more efficient than hand washing, they did take longer to purification.
“A lot of the time, you have to use one hand, but I think the purifying process is actually a lot faster and less expensive than using a hand machine,” Katsu said.