Environmental Engineering FOURTH EDITION

Reuse, Recycling, and Resource Recovery 279

Feed rate, tonslh

Feed rate, tonslh

1

Moisture in feed, %

Figure 14-5. (A) Effect of feed rate and rotor speed on specific energy used in shred-

ding. (B) Effect of feed rate and feed particle size on specific energy. (C) Correlation

between moisture content in the refuse and motor speed.

Table 14-2. Typical Bond Work Indices‘

~~~

Location Material Bond work index (kWton)

Washington, DC

Wilmington, DE

Charleston, SC

St. Louis, MO

Pompano Beach, FL

Washington, DC

Washington, DC

Washington, DC

Washington, DC

MSW

MSW

MSW

MSW

MSW

Paper

Steel cans

Aluminum cans

Glass

463

45 1

400

434

405

194

262

654

8

“From Stratton and Alter (1978).

The Rosin-Rammler particle size distribution equation (Eq. (14.1)) may be com-
bined with the Bond work index concept. Equation (14.1) may be rewritten