News tagged with byproduct
Solar thermal process produces cement with no carbon dioxide emissions
(Phys.org) -- While the largest contributor to anthropogenic greenhouse gas emissions is the power industry, the second largest is the more often overlooked cement industry, which accounts for 5-6% of all ...
Apr 10, 2012 |
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High-purity hydrogen generated from a single device
(PhysOrg.com) -- There are many ways to generate hydrogen, such as water electrolysis and steam reforming of gas, but the hydrogen produced by these methods tends to be combined with other byproduct and residual ...
Oct 07, 2011 |
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Saltwater boosts microbial electrolysis cells to cleanly produce hydrogen
A grain of salt or two may be all that microbial electrolysis cells need to produce hydrogen from wastewater or organic byproducts, without adding carbon dioxide to the atmosphere or using grid electricity, ...
Technology / Energy & Green Tech
Sep 19, 2011 |
4.6 / 5 (5) |
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Microbiologist discovers new super-preservative
(PhysOrg.com) -- In one of those freak accidents that sometimes occur in science, where someone is looking at something for one purpose and finds another for it, Dan O'Sullivan has found a use for a byproduct of harmless ...
Aug 17, 2011 |
4.6 / 5 (26) |
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Chemists devise better way to prepare workhorse molecules
In chemistry, so-called aromatic molecules compose a large and versatile family of chemical compounds that are the stuff of pharmaceuticals, electronic materials and consumer products ranging from sunscreen to plastic soda ...
Jun 09, 2011 |
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Nanotechnology promises better catalytic converter
(PhysOrg.com) -- Control over material properties would reduce the amount of platinum needed.
Nanotechnology / Nanomaterials
Sep 27, 2010 |
5 / 5 (3) |
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Researchers Discover How to Move Protons, Improve Hydrogen Fuel Cell Technology
(PhysOrg.com) -- In a breakthrough that should help to solve one of the biggest problems holding back development of affordable fuel cells, a team of University of Massachusetts Amherst scientists has discovered ...
Apr 26, 2010 |
4.6 / 5 (16) |
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Stanford researchers find electrical current stemming from plants
In an electrifying first, Stanford scientists have plugged in to algae cells and harnessed a tiny electric current. They found it at the very source of energy production - photosynthesis, a plant's method of converting sunlight ...
Nanotechnology / Bio & Medicine
Apr 13, 2010 |
4.8 / 5 (15) |
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What's in your water?: Disinfectants create toxic by-products
Although perhaps the greatest public health achievement of the 20th century was the disinfection of water, a recent study now shows that the chemicals used to purify the water we drink and use in swimming pools react with ...
Mar 31, 2009 |
4.2 / 5 (17) |
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New mosquito repellant could be frightening ... for the mosquitoes!
In a small, narrow, temperature-controlled lab room at Vanderbilt University live some of the most deadly and dangerous animals in the world.
Feb 28, 2012 |
3.5 / 5 (4) |
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Study: Ozone from rock fracture could serve as earthquake early warning
Researchers the world over are seeking reliable ways to predict earthquakes, focusing on identifying seismic precursors that, if detected early enough, could serve as early warnings.
Nov 17, 2011 |
4.8 / 5 (4) |
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New sensors streamline detection of estrogenic compounds
Researchers have engineered new sensors that fluoresce in the presence of compounds that interact with estrogen receptors in human cells. The sensors detect natural or human-made substances that alter estrogenic signaling ...
Aug 25, 2011 |
5 / 5 (1) |
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New pint sized particle accelerator leads the way to clean nuclear energy
(PhysOrg.com) -- Researchers at Daresbury science park in Britain have offered a glimpse into what might be the future of nuclear energy production by showcasing a scaled down particle accelerator; one, that ...
Jun 20, 2011 |
4.7 / 5 (30) |
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Chemistry with sunlight: Combining electrochemistry and photovoltaics to clean up oxidation reactions
The idea is simple, says Kevin Moeller, PhD, and yet it has huge implications. All we are recommending is using photovoltaic cells (clean energy) to power electrochemical reactions (clean chemistry). Moeller ...
Jun 09, 2011 |
4 / 5 (1) |
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Green and lean: Secreting bacteria eliminate cost barriers for renewable biofuel production
A Biodesign Institute at Arizona State University research team has developed a process that removes a key obstacle to producing low-cost, renewable biofuels from bacteria. The team has reprogrammed photosynthetic ...
May 26, 2011 |
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By-product
A by-product is a secondary product derived from a manufacturing process or chemical reaction. It is not the primary product or service being produced.A by-product can be useful and marketable or it can be considered waste.
IEA offers the following definition for the purpose of life cycle assessment:
For more information about By-product, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
