更多的能量书呆子的沉思
Unless you live in a drought-stricken region, you probably take your water service for granted. After all, most North American homes have safe drinking water on tap, provided by either a municipal water system or a drilled well.
然而，在世界大部分地区，水很少。河流可能被污染或不存在，降雨可能是斑点。在钻井钻机可接近的深度可能不可用接地水。此外，气候科学家预测，上升的温度将在世界大部分地区增加干旱的频率。
In these areas with limited water resources, including many Caribbean islands, the traditional solution to the water problem is to gather rainwater that falls on a home’s roof and direct the water to a cistern. If annual rainfall is adequate and dependable, such a rainwater collection system can supply enough water to support a family. This approach won’t work, though, in areas of the world where rainfall is not dependable.
Another possible solution to water shortages is to build a desalination plant—but that solution is expensive, and it doesn’t help communities that are far from an ocean.
For the millions of people who now live in houses without running water, someone in the family (usually a woman or a child) must travel on foot every day to a distant well to draw water, or must stand in line to have the family’s bucket filled from a water truck.
在信封之外思考
从空气中生产饮用水呢？
简短的答案是一个合格的是的。水从空气方案的主要缺点是水的高成本。除了成本问题外，还有气候局限性：水 - 空气方法在热潮湿的气候下最佳。
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5条点评
这是一个优秀和及时的文章。希望使用这项技术来获得我们的湾区家庭净零用水。
Curious if you think there are any legal constraints to using this technology? In CA and other parts of the Cadillac desert where water laws are weird I wonder if use of this technology would violate riparian laws? In SF it technically wasn't legal to collect rainwater until an explicit law was passed (I think in 2013) to allow it because water could not be "damned" unless you had rights to it.
Nicholas,
据我所知，使用这项技术没有法律束缚。
Your question reminds me of a law school exam hypothetical! Here is how it would be argued in class:
在某些干旱的地方，水被视为稀缺的商品（财产权），这些商品（财产权）根据一系列建立所有权利益的财产权协议（这假定您所谈论的法律旨在确保持续流动水进入系统，后来在河岸的权利中倾斜而言）。因此，收集雨水可以被视为最终减少另一个利益相关者的权利和利益而无需赔偿。在将水拉出大气中，您会争辩说，这并没有将供应递减给其他利益相关者，并因此不能通过这些法律控制的行为。为了反击这一论点，这些利益相关者可能必须表明，从空气中拉动湿度以某种方式减少了进入系统的雨水量。
Interesting article....In NJ we have a 900 ft well that does not frack well (no pun intended) and so we conserve water. When I run the Fujitsu mini splits for dehumidification or cooling I collect the water in a big vat for use in watering our gardens. It is amazing how many gallons it produces on humid Spring or Summer days. Why waste it?
这些机器可以在某些第三个世界领域工作。在中非，我的组织参与农村村庄，这种方法的问题往往是缺乏电力。我们最终运行了4000英尺的管道，以将水带到一个村庄：有时相比，与安装这些机器使用太阳能光伏运行时，有时可以采用更便宜的方法。我会注意到，在其他领域，问题并不缺水，而是缺水，水质差，特别是水污染的水，污水污染和饮用标准的净化成本。在这种情况下，也许这些机器可以提供相对较小的饮用水供应，而是可以对其他用途进行调节局部水。
Producing water from air at about 50 cents a gallon seems cheap compared to the $1+ per gallon water at grocery stores in the northeast US.
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