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hw-1 - Homework Set 1 CE485 Spring 2005 Homework Due...

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Homework Set # 1 Homework Due Time/Date: 8:30AM, 1 Feb 2006 CE485, Spring 2005 Student Name : ______________________________________________ (Note: Please attach this page to the front of your completed homework.) ____________________________________________________________________________________ 1. Using the data presented in the table below, estimate the as discarded specific weight of typical residential MSW. Use the typical distribution of waste components given in Column 3 of Table 3-4 presented in the text book by Tchbanoglous (in library on reserve). Component % by Weight Moisture Content (%) Dry Weight*, lb Organics Food Waste 9 70 2.7 Paper 34 6 30 Cardboard 6 5 7.7 Plastics 7 2 6.9 Textiles 2 10 1.8 Rubber 0.5 2 0.5 Leather 0.5 10 0.4 Yard Wastes 18.5 60 7.4 Wood 2.0 20 1.6 Misc. Organics -- -- -- Inorganics Glass 8 2 7.8 Tin Cans 6 3 6 Aluminum 0.5 2 0.5 Other Metal 3 3 2.7 Dirt, ash, etc. 3 8 2.8 * Based on as delivered sample weight of 100 lb 2. Using the data presented in the above table, estimate the specific weight of all three wastes (A, B, and C) presented below. Percent by Weight Component A B C Food Wastes 15 45 70 Paper 35 25 10 Cardboard 7 5 2 Plastics 3 3 8 Yard Wastes 25 22 5 Wood 15 0 5 Page 1 of 2 1/23/2006
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