Scientific American reports that Wichita Falls, Texas has taken an unusual step, precipitated by the years-long drought that Texas has faced: it's using treated sewage for drinking water. From the article: To launch what it calls its "Direct Potable Reuse Project," the city pipes water 12 miles from its wastewater treatment plant to this treatment facility where it goes through microfiltration. A pump pulls water through a module filled with fibers that removes most of the impurities. Then it is forced through a semi-permeable membrane that can remove dissolved salts and other contaminants. The process, called reverse osmosis, is used by the U.S. military, in ships and in the manufacture of silicon chips. The water then gets blended with lake water before going through the regular water treatment system. ... At 60 cents per 1,000 gallons, it's far cheaper than any other source of water, [Wichita Falls' public works director Russell] Schreiber said. ... He said there have been few complaints so far. A glass of the finished product, sampled at a downtown restaurant, tasted about average for West Texas.
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