Verbrennung polychlorierter Biphenyle und ähnlicher Verbindungen

Mischer, Günter; Schnabel, Werner Wilhelm

doi:10.1002/cite.330620913

Cited by 1 publication

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“…The joint combustion of concentrated sewage and liquid PCB-containing waste makes it possible to avoid the formation of PCDD and PCDF. 231 A twochamber apparatus, consisting of a rotary furnace and a final combustion chamber, 6,18,42,77,179,183 in which a temperature higher by 200 8C than in the first chamber is maintained to ensure the completion of the process and the suppression of the PCDD and PCDF formation reactions, is used in certain cases. The twochamber apparatus proved to be the most effective device for the combustion of liquid waste and its universal application has been recommended by the Environmental Protection Agency in the USA.…”

Section: Oxidative Methodsmentioning

confidence: 99%

Polychlorobiphenyls: problems of the pollution of the environment and technological neutralisation methods

Занавескин¹,

Aver’yanov²

1998

Russ. Chem. Rev.

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Cylindrical pipes are widely used in industries such as nuclear power plants and micro total analysis systems (mTAS). Measuring the flow rate of fluid in such pipes is critical. Ultrasonic flowmeters are noncontact, nondestructive, and easy-to-use devices, and are therefore widely used. However, typical bulk-wave-based ultrasonic flowmeters cannot be used for pipes narrower than the wavelength of bulk waves. For such pipes, we are currently developing a ''guide wave flowmeter'' that uses guide waves instead of bulk waves. Previously, we theoretically and experimentally investigated a pipe filled with quiescent fluid for all modes [Jpn. J. Appl. Phys. 45 (2006) 4573]. In this study, we expanded our theoretical investigation to a cylindrical pipe containing flowing fluid, and then compared the results with experimental results. Both the theoretical and experimental results revealed that the flow rate can be determined by measuring the sound velocity (propagation time) of guide waves. This is the operating principle of our guide wave flowmeter.

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Section: Oxidative Methodsmentioning

confidence: 99%