Recommendations for future work

The information exchange and the result of this exchange, i.e. this document, present an important step forward in achieving the integrated prevention and control of pollution from the foimdry industry. On a few topics, however, the information is incomplete and did not allow BAT conclusions to be reached. The main issues have been presented in Section 7.2. Future work could usefully focus on collecting the following information  

The information exchange has also exposed some areas where additional useful knowledge could be gained from research and development projects. These relate to the following subjects  

Dioxin monitoring and abatement In order to allow the full implementation of primary measures for dioxin prevention, there is a need for a better understanding of the contribution of the process parameters to the formation of dioxins. This requires the monitoring of dioxin emissions for various installations and under varying conditions. Additionally, there is a need for research on the use and effectiveness of secondary measures in the foundry industry. Secondary measures (e.g. additive injection, catalytic filter bags) have been implemented in other sectors (e.g. steel, waste incineration, non-ferrous metals production), but there is very little experience of their performance and of possible operational problems which may occur in applying then in foundries 

Hoffineister, J. Reichardt, N. and Alwast, H. (1997). NE-Metallindustrie -Betreiberleitfaden fur Anlagen zum Gielien in verlorenen Formen - SandguBverfahren , Ministerium Umwelt, Raumordnung u. Landwirtschaft NRW. 

Schneider, B. (1993). Verwertung von GieBereialtsanden durch thermisch-mechanische Aufbereitung in einer zentralen Anlage , Umweltbundesamt, 30 441-5/9. 

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Russell, L.B., Selby, P.B., von Halle, E., Sheridan, W. and Valcovic, L. The mouse specific-locus test with agents other than radiations Interpretation of data and recommendations for future work. Mutat. Res. 86 329-354, 1981. 

In conclusion, it is recommended for future work to use the LDF model. Because Langmuir isotherm has severe limitations, the use of the DR equation is also recommended. But in this case analytical solutions no longer exist and numerical calculations of the system of equations must be performed. 

Policy upon completion of each stage (DQ, IQ, OQ, PQ), a document review or report detailing results compared against the requirement and recommendations for future work must be prepared and accepted by appropriate management before proceeding to the next stage of validation or implementing the process. 

There is a great danger in making recommendations for future work on many counts, not least because a new experimental discovery or technique may completely invalidate or supercede the more conventional and current approaches in use. Nevertheless, rather than recapitulate the discussion of previous studies, it is probably of more interest and help to make a few suggestions about which directions on research into diffusion-limited reaction rates might be more fruitful. 

Recommendations for future work Either an empirical or a theoretical correlation for the pressure drop in a three-phase fluidized bed is needed. More experimental data for the pressure drop are needed with hydrocarbon systems. Equations (9-8o) and (9-8b) need to be tested against the experimental data with hydrocarbon systems. 

The committee reviewed, summarized, and critiqued the literature published between January 1988 and December 1995 that included original economic assessment of clinical pharmacy services or programs, thereby serving to update the original position statement of ACCP. Further intentions were to provide a barometer of the degree to which accepted techniques of economic analysis have been incorporated into this literature, and to make recommendations for future work in this area. 

Kinetic Modeling Approaches. This section contains some possible approaches to modeling of the data and mechanisms proposed in this paper. It also includes recommendations for future work to analyze the validity of the suggested models. The cases presented take into account the zero order behavior at low hydroxyl concentrations (Case I) and the second order reaction observed at high hydroxyl concentrations in conjunction with the three step mechanism proposed previously (Case II). 

Safety case report - a summary of the safety argument, including all salient issues and any recommendations for future work. 

Work in teams to effectively write a project report and give a presentation that describes the connection between the concepts of sustainable engineering and their work, the approach they took and their conclnsions and recommendations for future work. 

Table 1 Mean volume weighted particle sizes of the small and large sized sample of PbS and PbSe derived by apphcation of different thresholds during image analysis (evaluation of a minimum of 124 particles) and summary of parameters a, b, and c showing the best match with the PSDs in case of PbS(e) for THSmim THSniean and THSmax (bold values are recommended for future works [61, 68])...

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