Tag Archives: Bill Gates

Amusing Monday: Bill Gates talks toilets again

Microsoft founder Bill Gates remains obsessed with human waste — in a good way, of course. His goal is to improve sanitation throughout the world and thereby reduce suffering from disease.

Poop is a subject that never goes out of style with comedians, and Ronny Chieng of “The Daily Show with Trevor Noah” is right on top of the subject. In a conversation with Bill Gates, shown in the first video, Chieng demands to know why Gates has been carrying around a jar of human feces.

“Toilets are something that we take for granted,” Gates responds, “but billions of people don’t have them.”

The Bill and Melinda Gates Foundation is funding a major campaign to get engineers and other smart people to design a small-scale treatment device that generates energy while producing useable water. It’s called the Reinvent the Toilet Challenge.

Ronnie Chieng is asking some good questions, but I’m not sure why he needs to blurt out a bunch of four-letter words, when five-letter words like “waste” and “feces” work quite well.

“We’ve put several hundred million into this to show it can be done,” Bill says.

“Several hundred million dollars?” Ronnie responds. “Oh my god, is Bill Gates literally flushing his fortune down the toilet?”

Those who have been following Bill Gates’ efforts for a few years won’t be surprised at his desire to improve sanitation in places around the world where flush toilets are just a pipe dream.

Last month, Gates carried a jar of human feces onto the stage with him in Beijing where he addressed an audience at the Reinvented Toilet Expo.

“This small amount of feces could contain as many as 200 trillion rotavirus cells, 20 billion shigella bacteria and 100,000 parasitic worm eggs,” Gates said, as quoted by National Public Radio. His prepared speech can be found on the website of the Gates Foundation, along with a press release.

About 20 exhibitors were able to show off their inventions, including household toilets capable of internally processing small amounts of waste as well as commercial-sized treatment plants that turn waste into drinking water, electricity and ash.

Sedron Technologies, based in Sedro Woolley, is working at both ends of the spectrum. On the larger scale, its Janicki Omni Processor dries out solid waste and uses it as fuel. On the smaller scale, its new Firelight Toilet was just unveiled at the recent expo and explained in a news story by reporter Julia-Grace Sanders of the Skagit Valley Herald.

Gates discusses what he calls “clever toilet” technologies in the second and third videos on this page. In addition to NPR, the Expo was covered by Popular Science and The Hindu, which localizes the story for its audience in India where sanitation is a monstrous issue.

As I said, Bill Gates has been obsessed with this issue for quite awhile. In 2015, I featured a video about the “ultimate taste test” using sewage effluent. The tasters were Gates and Jimmy Fallon of “The Tonight Show.” See Water Ways, Feb. 9, 2015.

Amusing Monday: Waste to water provides a drink for Jimmy Fallon

Jimmy Fallon and Bill Gates together make an interesting combination. One is about finding new ways to solve serious world problems, while the other is looking for new ways to surprise and delight people.

Bill gates recently challenged Jimmy Fallon to the “ultimate taste test” involving two glasses of water. Jimmy would try to tell the difference between bottled water and sewage effluent from an innovative treatment plant built in Sedro Woolley, south of Bellingham. As you’ll see from the video, there was a bit of trickery involved.

In his blog, “Gates Notes,” Bill Gates describes the Omniprocessor, designed by Janicki Bioenergy of Washington state. A video on that page (shown here) demonstrates how the processor works, with an ending in which Gates drinks water that had been in the form of human feces just minutes before.

Gates makes the most of this humorous but deadly serious issue, knowing that one of the greatest health threats in the developing world is contaminated drinking water — and that a machine could help solve the problem.

The Omniprocessor burns dried human waste as fuel to dry more waste as it comes into the plant, providing an endless supply of fuel that can be burned at a very high temperature, thus controlling air emissions. The drying process produces steam, which can run a generator for electricity. The water vapor is cooled and goes through a final filter to produce clean drinking water.

I’ve read many articles written about the Omniprocessor over the past month, but Mark Stayton of the Skagit Valley Herald wrote the most informative piece I’ve seen.

A working prototype is scheduled to be fabricated this spring in Dakar, Senegal, West Africa, and go into use soon after. Graphics and photos are available on the Omniprocessor home page.

I’ll be interested to see how this entire operation works in practice. Not much is said about getting the waste to the machine. Apparently, some locations have trucks that pump out latrines and then dump the untreated waste someplace else, risking contamination to groundwater or surface water. Transportation of the waste/fuel might be less of an issue in cities with inadequate sewage-treatment plants, but I don’t know how efficient trucks would be in rural areas, where roads are often a problem.

Anyway, I will try to keep you informed about the Omniprocessor and similar technology in the months to come.