Bill Gates’s Shipping Containers Turn POOP into Energy!

Bill Gates, the founder of Microsoft literally threw millions of dollars into toilet as he together with his wife invested $42 million in a competition of designing toilet systems for developing countries. In the competition Duke’s Pratt School of Engineering presented a creative solution that uses shipping containers to sanitize human waste.

duke University

The university was offered a $1.18 million grant of its idea of turning human waste into energy.  The sanitation solution that starts with the individual and the toilet, includes the storage, transportation and treatment of human waste, and ends, ideally, with safe, usable by products such as fertilizer, fuel or clean water.

As the diagram above shows, human waste goes to an underground shipping container. This 20-foot shipping container uses enough heat and pressure to drive the internal water into so called ‘supercritical phase‘. Supercritical water can oxidize the waste and produce a sterile combination of water, carbon dioxide and salts. It also produces a lot of heat that can be directed back to the system or, say, to a power generator.

Supercritical Water Oxidization, portable sewage treatment, shipping container sewage treatment center, bill and melinda gates foundation, Duke Pratt School of Engineering, eco design, green design, raw sewage treatment, Reinvent the Toilet, sustainable design

The World Health Organization has stated that there 2.4 billion people that do not have access to any type of improved sanitation facility. In addition, about two million people die every year of diarrheal diseases; most of them being children under five years of age. Just like container hospitals and Coca-Cola’s container kiosks, the new container toilet system is a new example of how shipping containers can save lives!

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Shipping containers are an excellent tool for conducting CSR campaigns in developing countries. As the examples of Coca-Cola, Samsung and now Bill Gates go to show, shipping containers are worth more than their steel structure. It is the value that comes from the creative minds utilizing containers that makes a difference. We in Shanghai Metal Corporation are really proud of offering these instruments. Please see more information about our shipping containers in our website or just send us an inquiry. Don’t forget to follow us on Twitter, Facebook, LinkedIn and Instagram.

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Tuomas P. // SMC Editor

Pictures and original articles: Top 10 rate, The World Health Organization, Duke University, Inhabitat, Treehugger

Do You Know How The UK Coins Are Made And What Are They Made of?

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The processes involved in producing a coin can be broken down into three different sections: making the blanks, making the dies and striking the coins.

Making the blanks

Depending on the alloy required, the appropriate metals are melted in the necessary proportions in a furnace. The metal is then extracted from the furnace in the form of a continuous strip, which is cut to produce coils weighing up to 2.8 tonnes. The strip is passed through powerful rolling mills to reduce it to the thickness of a coin. Blank discs of metal are then punched from the strip in a blanking press at a rate of up to 10,000 a minute. Rolling metal under great pressure makes it hard so the blanks have to be softened, something which is achieved by heating them in an annealing furnace at up to 950°C.

Making the dies

Once a design has been approved, a plaster model is prepared at several times the diameter of the intended coin. The plaster model is scanned by a ruby-tipped probe which records the design as a digital file on a computer. Guided by this digital file, an engraving machine cuts the design into a piece of steel at the correct size of the coin. Known as a reduction punch, this piece of steel is then used to make the dies which will actually strike the coins.

Striking the coins

For the final stage of the process, the blanks are fed into a coining press containing a pair of dies. Applying a pressure of around 60 tonnes, the dies strike the blanks and turn them into coins at speeds of up to 850 a minute.

= 1 penny coin =

First Issued February 15, 1971

Diameter 20.3mm

Weight 3.56g

Thickness Bronze: 1.52mm. Copper-plated steel: 1.65mm

Composition Bronze (97pc copper, 2.5pc zinc, 0.5pc tin)

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= 2 pence coin =

First Issued February 15, 1971

Diameter 25.9mm

Weight 7.12g

Thickness Bronze: 1.85mm. Copper-plated steel: 2.03mm

Composition Bronze (97pc copper, 2.5pc zinc, 0.5pc tin)

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= 5 pence coin =

First Issued Smaller version in June 1990.

Diameter 18.0mm

Weight 3.25g

Thickness 1.7mm

Composition Cupro-nickel (75pc copper, 25pc nickel)

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= 10 pence coin =

First Issued Smaller version in September 1992.

Diameter (since 1992) 24.5mm

Weight 6.5g

Thickness 1.85mm

Composition Cupro-nickel (75pc copper, 25pc nickel)

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= 20 pence coin =

First Issued June 9, 1982

Diameter 21.4mm

Weight 5g

Thickness 1.7mm

Composition Cupro-nickel (84pc copper, 16c nickel)

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= 50 pence coin =

First Issued Smaller version introduced in September 1997. Diameter (since 1997) 27.3mm

Weight 8.0g

Thickness 1.78mm

Composition Cupro-nickel (75pc copper, 25pc nickel)

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= 1 pound coin =

Issue Date April 21, 1983

Diameter 22.5mm

Weight 9.5g

Thickness 3.15mm

Composition Nickel-Brass (70pc copper, 5.5pc nickel, 24.5pc zinc)

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= 2 pound coin =

First Issued June 15, 1998

Diameter 28.4mm

Weight 12g

Thickness 2.5mm

Composition, Outer Nickel-Brass (76pc copper, 4pc nickel, 20pc zinc). Inner Cupro-nickel (75pc copper, 25pc nickel)

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= 5 pound coin =

First Issued August 4, 1990. Previously crowns had a face value of 25p

Diameter 38.61mm

Weight 28.28g

Thickness 2.89mm

Composition Cupro-nickel (75pc copper, 25pc nickel)

Collector versions have been struck in precious metals

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As an international manufacturer and supplier for copper sheet and bronze sheet, Shanghai Metal Corporation produces slitting, edging, and oscillates winding to fit your specific copper requirements. To find out more, please visit our Website or send your inquiry here. Our English speaking personnel will be more than pleased to help you. Follow us on  LinkedInTwitter, FacebookInstagram and don’t forget to subscribe to our YouTube channel. Or you could try our new mobile app by scanning our QR code.

Sources: Royal Mint, The Telegraph, museumvictoria.com.au

William P.//SMC Editor

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The Best Steel For The Best Dish!

An interesting wok test compares the carbon steel wok again the stainless steel wok. There is a lot of debate over these two compositions of woks even if they look kite similar there are some important difference with their temperature reaction.

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Most people prefer the carbon steel wok over the stainless steel wok because it has the most regular heat dispersion. This is not the case with stainless steel overheated and these hot spots can totally ruin a cooking and reduces long-term quality cooking. On the other hand, the carbon steel has good resistance to high temperatures and retains heat much longer than stainless steel woks for future use.

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The only downside is that carbon steel requires slightly more maintenance to eliminate the appearance of rusting. We just needs to dry well and rub with 2 or 3 drops of oil to prevent any risk of rust.

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To have a good wok stainless steel we have to choose the best quality of stainless steel and the final price may be higher than the carbon steel wok.  Overall, the carbon steel wok is a better choice for short and long term use.

Shanghai Metal Corporation offers a large selection of carbon steel with the highest quality standard and an affordable pricing. To find out more, please visit our Website or send your inquiry here. Our English speaking personnel will be more than pleased to help you. Follow us on  LinkedInTwitter, FacebookInstagram and don’t forget to subscribe to our YouTube channel. Or you could try our new mobile app by scanning our QR code.

Source: ehow

Photo credit: Wikipedia, myntan, wcclippart, plus.google.com

Jonathan T.// SMC Editor

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Meet Solar Farm: The Future in City Light & Power

Resembling something out of a movie, the Ivanpah Solar Thermal is the world’s largest solar power plant located in Ivanpah Dry Lake,
California’s Mojave Desert. Occupying approximately 3,500 acres (14.2km2) and grounded on BrightSource’s solar tower technology, the thermal complex produces gross total of 392 MW of solar power.

Over 300,000 garage-door-size mirrors are used to attract the power of the sun in two dimensions and reflect the sunlight to boilers that sit atop three 459 foot tall power towers. A center of earth location in relation to the sun is used so that each mirror in its solar generating system is precisely aligned.

Atop one of the three 459 foot tall power towers

What is so special about Ivanpah Solar Thermal? Economic, social and environmental benefits are many. With the thermal’s construction 2,636 new local jobs were created, generating about $350 mi in local and state taxes. Clean, sustainable and reliable solar electricity serves 140,000 homes on average in California, while 400,000 metric tons of carbon dioxide emission per year is reduced, which equals to removing 72,000 vehicles off the road.

Not only that, the construction of this iconic project was a breakthrough as it kept the majority of the natural landscape untouched unlike other mega constructions. When BrightSource’s 173,000 heliostat pylons were installed, grading and concrete foundations were limited to the maximum, allowing the vegetation to co-exist within the solar field below the mirrors. The project also accounted with an innovative and customized design; excavators operated in the 130-foot wide no-drive zones, traveling in the same tracks through the solar field and installing between 75 and 125 pylons per day, per machine.

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Low environment impact heliostat pylon design

The innovative technology uses the same principal of electricity production i.e. high-temperature steam which turns a solar7conventional turbine, where electricity is produced and transmitted to homes and businesses. The big difference is that at Ivanpah, the concentrated sunlight (and not fossil fuel) strikes the boiler’s pipes and heats the water to create superheated steam. Besides, the technology uses 95 percent less water than competing wet cooled solar thermal plants by employing a dry-cooling process, which uses air instead of water to condense steam. All water used by the steam production cycle is recycled back into the system, or consumed to clean the mirrors, highlights BrightSource.solar8

The Ivanpah Solar Thermal System is “critical to establishing America’s leadership in large-scale, clean-energy technology that will keep our economy globally competitive over the next several decades,” says Tom Doyle, president at NRG Solar. This is the future and the Ivanpah has, for sure, started changing the way we produce and consume energy.

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Shanghai Metal Corporation is proud to follow on news that represent massive step forward for renewable energy as previously reported here. SMC manufactures a wide range of Solar panel aluminum extrusion widely used in solar panels and tin coated/plated copper strip used in solar panel batteries. To find out more, please visit our Website or send your inquiry here. Our English speaking personnel will be more than pleased to help you. Follow us on  LinkedInTwitter, FacebookInstagram and don’t forget to subscribe to our YouTube channel. Or you could try our new mobile app by scanning our QR code.

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Source: latimesblogs.latimes.com, dailyfusion.net, energy.ca.gov, blog.nrgsolar.com, infrastructurenews.co.nz, brightsourceenergy.com, forconstructionpros.com

Picture:flickr.com/photos/brightsourceenergy/sets/72157633434942709/show

Camilla G.//SMC Editor