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When hazardous materials packagings may be used more than once?
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Do aromatics disappear as fuel oil ages?
No the aromatic compounds will be still there as long as this is kept in an air tight container. Once the available air space is saturated with the compound in that air IT will not allow the release of more then that.
What is extended batch fermentation?
Imagine a vessel where you are growing E. coli and after some time it reaches the highest density it can so it stops growing. Take half of that culture and put it into another vessel so now you have two vessels. Dilute them to the original volume with fresh nutrients etc. Those cultures will start to grown once more. Keep doing this over and over or however many times you need.It is a way of getting more biomass from the original culture.
What is the relationship between boilup ratio and number of contact stages?
The boilup ratio will help determine the bottom operating line of your column. Once you have both your bottom and top operating lines you can step off the number of stages (given the desired compositions at the top and bottom of your column).
How do Merseyside and Rotterdam projects compare on the basis of Diamond Chemicals investment criteria?
Using the original analysis, it looks like Rotterdam wins over Merseyside in the 4 criteria. But there are modifications that need to be done in the analysis pertaining to relevant costs and some departmental concerns. Once the analysis has been polished, the answer will be obvious.
What is supercritical boiler?
The following extract taken from an article by Ingo Paul in Energy Issues No 19 April 1999 published by the World Bank [external link] briefly describes the difference between a subcritical and a supercritical boiler. "Supercritical" is a thermodynamic expression describing the state of a substance where there is no clear distinction between the liquid and the gaseous phase (i.e. they are a homogenous fluid). Water reaches this state at a pressure above 22.1 megapascals (MPa) The "efficiency" of the thermodynamic process of a coal fired power (sic) describes how much of the energy fed into the cycle is converted into electrical energy. The greater the output of electrical energy for a given amount of energy input, the higher the efficiency. If the energy input to the cycle is kept constant, the output can be increased by selecting elevated pressures and temperatures for the water-steam cycle. Up to an operating pressure of around 19 MPa in the evaporator part of the boiler, the cycle is sub-critical. This means, that there is a non-homogeneous mixture of water and steam in the evaporator part of the boiler. In this case a drum-type boiler is used because the steam needs to be separated from water in the drum of the boiler before it is superheated and led into the turbine. Above an operating pressure of 22.1 MPa in the evaporator part of the boiler, the cycle is supercritical. The cycle medium is a single phase fluid with homogeneous properties and there is no need to separate steam from water in a drum. Once-through boilers are therefore used in supercritical cycles. www.whizkris.com
How often must hazardous materials employees be trained?
The US DOT requires hazardous materials training at least once every three years for those involved in transportation of hazardous materials.
Identify the two areas where workers should place their remaining hazardous materials once they have finished using them?
* return them to the proper storage area * dispose of them in a designated hazardous waste area
Are aluminum ingots considered hazardous materials?
Aluminum ingots are hazardous because they are heavy and could injure you if they dropped on your foot or leg. Other than that, they present no particular hazard once they have cooled.
Why once approved an Emergency Operations Plan should never be revised?
Under existing laws, States do not have broad authority to control how hazardous materials are stored, used, transported, and disposed of within their borders
Can lead be recycled?
Lead cannot be recycled. Once lead is used to its capacity, it cannot be used for other purposes. For example, lead batteries can only be used until the battery dies, then the battery falls under the category of Hazardous Materials.
What are disposable and non disposable wastes?
materials that cannot be used more than once are called disposable wastes.
What materials equipment and tools can be re used?
no tools can be used more than once, materials may be used numerous times and equipment can be re-used if the packaging says so.
How Materials of mountains once under water?
nope
Is it true the more you poop the more calories you burn?
no; doing so only gets rid of the food materials that the body cannot make use of once all of the energy has been absorbed into the body
How do you get a academy in evony?
You have to rollover where it says 'BUY' and then collect the required amount of materials. Once you have the materials, you will be able to make an academy!
Why are trains useful?
they can transport large amount of materials or people at once
Minerals that do not come from once-living materials are said to be?
Inorganic minerals.
