UV pilot testing: intensity distribution and hydrodynamics

Article Abstract:

A study has been conducted on the hydrodynamics and intensity distribution of ultraviolet pilot testing. Intensity distributions were computed around three low-pressure mercury arc lamps of various lengths. The end-effects region was found to be 20% of the length of a lamp with an arc length of 36 cm, but only 5% of the length of a 147 cm lamp. Test costs can be reduced by using computational simulation and more precise measurements, since these would allow for smaller pilot test facilities.

Research, Ultraviolet radiation, Hydrodynamics

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Evaluation of uncertainty in a site-specific risk assessment

Article Abstract:

The computer software, SoilRisk, can be utilized in determining the carcinogenic risks of contaminated soil by combining data about carcinogens and by the use of systematic probability theory. Such a software may help researchers in investigating such pervasive problem and its effects to human health. Although the software may have limited applications, it can be useful in the analysis of soil contamination sites.

Health aspects, Soil degradation

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Model studies

Article Abstract:

Comments on Wayne J. Parker et al.'s second paper on volatile organic compounds in film fixed process are presented. In the second paper, Parker et al. applied a nonlinear regression to compute the values of volatilization and biodegradation for the trickling filter. An evaluation of the uncertainties associated with the parameter estimation is discussed.

Analysis, Volatile organic compounds

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