Read e-book online Advances in Sonochemistry: Ultrasound in Environmental PDF

By T.J. Mason, A. Tiehm

ISBN-10: 0444507051

ISBN-13: 9780444507051

ISBN-10: 1865843830

ISBN-13: 9781865843834

ISBN-10: 2076315500

ISBN-13: 9782076315509

Ultrasound in Environmental safeguard makes a speciality of one of many extra major advancements within the topic - environmental remediation - offering an outline on either the basics and functions of ultrasound in environmental safeguard, incorporating contemporary examine and cutting-edge details at the clinical foundation, modes of use, and engineering advancements. A wide spectrum of issues are lined: reactor layout, sonochemical pollutant degradation, built-in unltrasonic/ organic therapy, ultrasound in disinfection, leaching by way of ultrasound, and ultrasonically improved elimination of suspended solids. Ultrasound is generated and utilized at frequencies from 20 kHz to numerous MHz. The physio-chemical parameters of the sonicated media, reactor layout, utilized depth, and period of sonication, dramatically effect the results that may be accomplished. it really is was hoping that this compilation will give a contribution to a greater figuring out and extra improvement of sonochemistry as a fresh know-how not just for environmental remediation but additionally extra quite often. the root of this compilation used to be shaped in the course of a workshop that was once held on the Technical college of Hamburg-Harburg, Germany, in March 1999. This used to be the 1st workshop to be dedicated to 'Ultrasound in Environmental Engineering' and taken jointly event and information from a extensive spectrum of disciplines together with chemistry, biology, engineering, apparatus production, and plant layout.

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Khokhar, M. , and Oliver, R. Brit. J. Radiobiology, 48 (1975) 954. [17] Glazunova, A. , and Efimova, S. A. Acoustical Physics, 43 (1997) 45. [18] Lehninger, A. In Biochemistry, Worth Publishers, New York, 1975. [19] DeRobertis, E. D. , and DeRobertis, E. M. F. Cell and Molecular Biology, Holt-Saunders, Tokyo, 1980. [20] Griffin, J. , and Touchstone, J. C. Am. J. Phys. , 42 (1963) 77. [21] Julian, T. , and Zentner, G. M. J. Pharm. , 38 (1986) 871. , and Mizera, J. Ultrasonics, 9 (1971) 81. [23] Lorimer, J.

3. 1 Sonochemical Pre-treatment of Phenanthrene . . . . . 2 Simultaneous Sonication and Biodegradation . . . . . 4. Ultrasonic Pre-treatment of Dissolved Low Molecular Weight Pollutants . . . . . . . . . . . . . . 1 Mixtures of Chlorobenzene and Easily Biodegradable Compounds . . . . . . . . . . 2 Reduction of Dichlorophenol Toxicity . . . . . . . Advances in Sonochemistry Volume 6, pages 25±58. V. All rights reserved. 25 . . . . . . . . . . . . .

Ozonation is a technique suitable for the production of reaction products with increased polarity [1]. Sonication is another suitable method for increasing the mass transfer of hydrophobic compounds into the aqueous phase. Improved mass transfer can be achieved by the hydromechanical and/or the sonochemical e€ects of ultrasound. A schematic illustration of the two mechanisms resulting in an enhanced bio-availability of hydrophobic pollutants is shown in Figure 3. If the mechanism is based on hydromechanical e€ects only (Figure 3B), immediate biodegradation of the dissolved pollutants is necessary to maintain the driving force of the process.

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Advances in Sonochemistry: Ultrasound in Environmental Protection by T.J. Mason, A. Tiehm

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