Environmental Engineering

Download Aquatic Bioenvironmental Studies: The Hanford Experience by C.D. Becker PDF

By C.D. Becker

From 1944-1971, the Hanford achieve of the Colombia River in Washington kingdom acquired amounts of radioisotopes, warmth and chemical substances from as much as eight plutonium reactors. to that end, from 1971-1984 an analogous a part of the river supplied cooling water for three power-production facilities.

Environmental matters promoted a chain of continuous stories to envision a number of power antagonistic results. No major impairment of the rivers atmosphere was once detected.

This booklet reports those reviews and areas them in a ancient framework.

It offers a special evaluation of stories revamped a 40-year interval that are now scattered via numerous released and unpublished documents.

It may be of curiosity to all these all for aquatic ecology and environmental concerns.

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Sample text

The pH was adjusted toward neutrality with sulfuric acid, and sodium dichromate was added to inhibit corrosion (Conley 1954; 44 Fig. 3. Water treatment facilities at the KW and KE Reactors in the 100-K Area. For KE Reactor: A = main reactor building with adjacent stack B = main pumphouse supplying raw river water for cooling C = raw water filtration plants D = retention basins to allow decay of radioactivity and heat. Young 1956; Foster et al. 1961). Treated water was circulated through the reactor core by high-pressure, high-volume pumps.

Virtually all materials inside a reactor core were bombarded by neutrons and became, to a degree, radioactive. Activation products, the major source of radionuclides in the cooling effluent, resulted from neutron activation of elements dissolved in river water. An additional smaller source of activation products was materials corroded from the reactor piping and fuel elements (Davis 1958; Honstead et al. 1960; Foster et al. 1961; Foster 1972). Intricate adjustments of water chemistry were necessary to minimize the radionuclide content of effluents that entered the Columbia River (Conley 1954).

The radionuclides that appeared in the cooling effluent included both activation and fission products. Virtually all materials inside a reactor core were bombarded by neutrons and became, to a degree, radioactive. Activation products, the major source of radionuclides in the cooling effluent, resulted from neutron activation of elements dissolved in river water. An additional smaller source of activation products was materials corroded from the reactor piping and fuel elements (Davis 1958; Honstead et al.

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