Laboratory studies on teh differential segregation behavior of airborne quartz and coal dusts

Laboratory studies on teh differential segregation behavior of airborne quartz and coal dusts

15 Environment (pollution, health protection, safety) 95103051 The homo eneous, gas- hase formation of chlorinated and bromlnated d7 benzo-o-dlox...

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15

Environment

(pollution,

health protection,

safety)

95103051 The homo eneous, gas- hase formation of chlorinated and bromlnated d7 benzo-o-dlox Pn from 2.4.5~trlchloro,I--~~~ and2,4,6-trlbromophenols ’ Sidhu, S. S. er aZ., Combusrion & Flame, Jan. 1995, 100, (l), 11-20. The homogeneous, gas-phase formation of polychlorinated dibenzo-pdioxins and polybrominated dibenzo-p-dioxins has been observed from the high-temperature thermal decomposition of 2,4,6-trichlorophenol and 2,4,6-tribromophenol, respectively. Experiments were conducted in a l.Ocm.i.d. flow reactor over a temperature range of 300”-800°C with reactant concentrations of approximately 3.0 X lo” mol/L in a reaction atmosphere of dry air. How gas-sate Is Holland? 95103052 Vlieg, F. Gas (Netherlands), Dec. 1994, 114, (121, 656-657. (In Flemish) Studyes show that technical .improvemedts aid‘adaptations of‘ regulation; have made gas appliances in the Netherlands operate safer. The number of accidents went down during the last decade, in spite of an increase in the number of connections. Proposes to make a comparison of gas accident sttatistics internationally.

95103061 Laboratory studies on the dlfferentlal segregation behavior of airborne quartz and coal dusts Bhasker, R. et al., Tram. Sot. Min. Metall. Explor., 1994, 294, 1906-1911. The objective of this study is to develop a better understanding of the collection characteristics of dust measurement instruments used in mine dust control research with respect to properties of quartz and coal dust. 95103062 Land contamlnatlon Is all washed up Keegan, C. P. and Dietrich, A. J. Nuclear Engineering Int., Jan.-Feb. 1995, 40, (488), 39-40. In land remediation there is the common perception that soil washing is a technology that is still in its infancy. This may be changing with the development of a new washing system that could have a major impact on the remediation industry. The technology has been developed by Scientific Ecology Group, a Westinghouse subsidiary, and the Westinghouse Science and Technology Center, which provides an alternative to the usual methods (incineration, stabilisation or landfilling) for treating large volumes of contaminated materials. It is applicable to soil contammated with radioactive, hazardous, toxic and mixed waste.

95103053

The ideas of secondary school children concerning ozone layer damage Boyes, E. and Stanisstreet, M. Global Environmental Change, Dec. 1994, 4.7 141~ '311.324. \.I’ ----.. The understanding of pupils between the ages of 11 and 16 about the ozone layer - what it is, what will damage it and what will be the likely result of such damage - has been studied. Following the use of a preliminary openform questionnaire, the ideas of a large cohort of children have been probed by closed-form questionnaire and by interviews with a subset of this Prouu. The authors exulain that most ouoils seem aware that the ozone laye;is a layer of gas ardund Earth, but’less sure what that gas is. They also know that it protects Earth from ultra-violet rays from the sun, and that further depletion will allow more ultra-violet to Earth and cause more skin cancer. The authors provide evidence to suggest that such confusion of ideas is strongly held and that, even with this relatively new and abstract phenomenon, icie& are held in a consistent similar framework by most pupils. Increasing the accuracy In measuring concentra95103054 tlons of gases and dust In a mine atmosphere Onishchenko, A. M. and Ivashev, A. V. Izmer. Tekh., 1994, (2), 64-68. (In Russian) Describes the monitoring of coal, sandstone, and limestone dust and CH, in coal mine air by IR spectrometry. 95103056 Influence of coal propertles on emlsslon characterlstlcs of NO, and unburned carbon In fly ash In pulverlzed coal combustion Makino, H. et al., Nippon Enerugi Gakkaishi, 1994, 73, (lo), 906-913. (In Jauanesel TGe expdrimental research is perfomred to elucidate the influence of coal properties on the emission characteristics of NO, and the unburned carbon in fly ash from the pulverized coal combustion test facility. The conversion of the fuel-bond nitrogen to NO, increased with the fuel ratio of coal and with a decrease in the fuel-bond nitrogen content. A correlation to predict the NO, concentration from coal properties on pulverized coal combustion is presented and was found to be valid also for the combustion of coal blends. lnstltutlons for global envlronmental change. The 95/03056 United Natlons Framework Convention on Climate Change: The First Conference of the Partles openlng In Berlln Werksman, J. Global Environmental Change, Dec. 1994,4, (4), 339-340. The lnvlslble killer 95103057 Fender, J. Energy World, Feb. 1995, (225), 9-10. Carbon monoxide poisoning kills at least 30 people a year the true death toll is probably much higher. The article examines the problems and its possible solutions. Is this the gram that caused a mllllon cancers? 95103056 Neddennan, J. Nuclear Engineering Int., Jan.-Feb. 1995,40, (488), 17-19. Is plutonium, as it has been described, the most dangerous subsiance on earth? Calculations tell a different story. 95103059 JIP checks out toppling Offshore Engineer, Mar. 1995, 18-19. Reports that a joint industry project on the abandonment of offshore structures by in-situ demolition is currently under way in the hands of PATC (Platform Abandonment Technology Consortium), the joint venture formed by John Brown E&C and SLP Engineering. Klnetlcs of NO reduction by CO on quartz glass 95103060 surfaces Berger, A. and Rotzoll, G. Fuel, Mar. 1995, 74, (3), 452-455. The reduction of NO by CO was studied in a tubular reactor filled with small pieces of quartz glass tubing. The influence of residence time, concentration of CO and temperature on the reaction was investigated.

216

Fuel and Energy Abstracts

May 1995

95103063 Laser lonlzatlon time-of-flight mass spectrometry combined with resldual gas analysls for the lnvestlgatlon of moderate temperature benzene oxldatlon ;;_yIudez, G. and Pfefferle, L. Combusfion & Fkzme, Jan. 199.5, 100, (l), The simultaneous use of 10.5-eV vacuum ultraviolet photo ionization timeof-flight mass spectrometry and residual gas analysis using standard electron ionization for the study of the oxidation of a typical aromatic hydrocarbon fuel is shown to provide reliable estimates of species concentration, including radical reaction intermediates. The advantages and limitations of the combined techniques are discussed, with special emphasis on the factors bringing about uncertainties in the concentration measurements and spurious signals arising in quantitative photo ionization time-of-flight mass spectrometry. 95103064 Martln: Envlronmental remedlatlon Nation Nuclear News, Feb. 1995, 38, (2), 50-51. An interview with Bernadine Martin who is director of doned Mines Land Reclamation Department (AML). responsibility to the Navajo Nation, which spans three New Mexico, and Utah. The interview was conduced Associate Editor Richard A. Michal.

on the Navajo

the Navajo AbanThe AML has states - Arizona, by Nuclear News

Mescalero Indians reject lnterlm store - United 95103065 States Nuclear Engineering Int., Jan.-Feb. 1995, 40, (488), p. 12. Reports that a plan by 33 US nuclear utilities to build a temporary, above ground facility in New Mexico to store spent fuel from commercial nuclear plants was rejected in January 1995, by the Mescalero Apache tribe, which turned the proposal down by a vote of 490 to 362. Methane emlsslons 95103066 Williams, W. (editor), Waft Committee Report No. 28, Watt Committee on Energy, London, 1994. A report from the Watt Committee on the environmentally important question of methane emissions, with attention focused on UK emissions. 95103067 Williams, 97-109. Discusses

Methane emlsslons from coal mining Issues Environ. Sci. TechnoZ., 1994, 1, A. and Mitchell, C. methane emissions

Methane 95103066 ment systems &;t3; and Hashimoto,

from coal mining.

emlsslons A. G.

from typical

Bioresource

manure

Technology,

manage-

1994, 50, (2),

Methand is the most abundant organic chemical in the earth’s atmosphere, and its abundance is increasing with time and has reached levels not seen in recent geological history. Methane is produced both naturally and anthropogenically. One of the sources of anthropogenic methane is manure from domesticated animals. A methodology had previously been developed to estimate the amount of methane generated from this source. This was done by estimating the methane -conversion factor (MCF’) typically achieved by various waste management systems. The present study was conducted to evaluate these MCF assumptions using dairy manure as the representative livestock manure. Method and apparatus for wet process flue gas 95/03069 desulfurlzatlon (Assigned to) Babcock Hitachi m JAP. Pat. Takamoto, N. er al., JP.O6,246,131, Sep. 1994. 95103070 Unger, P. E. 1994.

Method of reducing halldes In synthesls gas (Assigned to) Shell Oil Co., PCT. Int. WO.94,24,230,

Oct.