Page 51 - Materials Chemistry, Second Edition

L1644_C01.fm Page 27 Monday, October 20, 2003 11:46 AM

TABLE 1.1
Waste Composition of the MSWI Plant in
Tarragona, Spain a

Component Percentage
Organics 46
Paper and cardboard 21
Plastics 13
Glass 9
Metals 3
Ceramics 2
Soil 1
Others 5
Total 100
a Average, 1999.

1
5 6 7 8
9

10
3 11

2 4 12 15 16
18 13
14
17 21
19 20

FIGURE 1.9 Scheme of the MSWI plant in Tarragona. (From Nadal, 1999.) 1. crane bridge;
2. fans; 3. oven; 4. slag extractor; 5. boiler; 6. combustion gases; 7. reactor; 8. separation
cyclone; 9. active coal; 10. recycling; 11. silo; 12. silo; 13. heat pump; 14. fan; 15. fan; 16.
chimney; 17. slag treatment; 18. ashes; 19. feeder hydraulic station; 20. extractor hydraulic
station; 21. slag.

Material inputs and outputs for subprocesses important for the process chain
and taken into account with their site-specific data in the LCA (see Chapter 2) are
mentioned in Tables 1.2 and 1.3. An overview of the process chain and the origin
of the material is given in Figure 1.10.
On the basis of the model described by Kremer et al. (1998) and a spreadsheet
version by Ciroth (1998), a modular steady-state process model with several
enhancements has been created by Hagelüken (2001), in cooperation with the Envi-

© 2004 CRC Press LLC