Page 243 - Materials Chemistry, Second Edition

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Sustainable Industrial Design and Waste Management
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FIGURE 6.15 Road ramp

that these wheels tend to embed themselves in unstable ground when car-
rying heavy loads, so they are best used on paved roads.

Road ramp
Road ramps are used to control vehicle speeds in residential areas, schools
and hospitals. Traditionally, road ramps are made from cast iron, rubber, or
asphalt mix. The new material made out of sand-plast mix can be used to
replace these traditional materials as shown in Figure 6.15. It provides an
excellent alternative from technical, economical, and environmental points
of view.

Questions

1. Estimate the quantity of MSW generated in your country and state the
recycling percentage of the total MSW.
2. Explain the method of disposing of the MSW in your country and how
much it costs per 1 ton of waste.
3. Discuss the types of MSW disposed in your country as well as the
quantity of such waste.
4. What are rejects?
5. Compare between a manhole cover and base produced in your country
and that produced from rejects, from technical, social, economical, and
environmental points of view.
6. What type of products do you recommend to be produced from rejects
according to the demand and need concept in your community?
7. Explain the rejects’ recycling technology. Develop a feasibility study,
technical study, and environmental study to develop such rejects’ recy-
cling plant.