By James R. Pfafflin, Edward N. Ziegler
Thoroughly revised and up to date, Encyclopedia of Environmental technology and Engineering, 5th version spans the full spectrum of environmental technological know-how and engineering. nonetheless the main complete, authoritative reference on hand during this box, the enormous two-volume encyclopedia has increased to incorporate 87 articles on themes starting from acid rain, pollution, and group wellbeing and fitness, to environmental legislation, instrumentation, modeling, replacement power, toxicology, radioactive waste, and water remedy. The articles were widely revised and up-to-date, new ones were extra to hide the most recent advancements regarding modern day environmental difficulties. the result's a reference paintings that offers the data essential to comprehend, deal with, and reply to threats to the human surroundings.
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Additional info for Encyclopedia of Environmental Science and Engineering, Fifth Edition, Volumes One and Two
Example text
If resins are regenerated, the regenerants (acids, alkalis, or salts) will appear as a liquid waste for disposal. Otherwise, the resin will be handled within its original container or as a powder or slurry. The radioactive content of gaseous effluents from reactors depends upon the design of the reactor. If air passes through the core very large amounts of argon-41 may be emitted from the stack. Although 41Ar is a hard gamma emitter it has a short half-life (about two hours) so its effects are only noticeable within or very near to the plant.
Every human activity is associated with some risk, however small. Normally we do not solemnly calculate the risk, weigh it against the benefit we expect to obtain, and then decide for or against the activity. Yet to decide to do something—such as driving a car, getting up in the morning, or going mountain climbing—must involve some sort of conscious or unconscious weighing of risk against benefit. In deciding upon a particular waste management system, or in deciding to license a particular kind of nuclear power station, a much more deliberate weighing of cost vs.
Sufficient activity remains for them to be highly dangerous to the unwary, so they are dealt with in special ways, usually after return to the supplier. 300 nuclear ships could be dumped safely if this were done only on the high seas. Apart from these sources wastes from nuclear shipping consist of clean-up solutions, laboratory wastes, laundry effluent and other minor sources common to all reactor operations. Except in submarines, practically all wastes can if necessary be retained on board for disposal ashore.
