Convert Pounds per day to Short tons per hour
Convert Pounds per day (lb/d) to Short tons per hour (ton/h) instantly and accurately.
Conversion Formula
ton/h = lb/d × 2.083333333e-5
About Pounds per day
The pound per day (lb/d) equals 0.45359237/86400 ≈ 5.249×10⁻⁶ kg/s, used in wastewater engineering for reporting biochemical oxygen demand (BOD) loads, nutrient loadings, and sludge production. US NPDES permits set effluent mass-load limits in lb/d; a municipal WWTP serving 10 000 people generates roughly 1 500-3 000 lb/d of dry sludge solids. 1 lb/d ≈ 5.249×10⁻⁶ kg/s.
About Short tons per hour
The short ton per hour (ton/h, US) equals 907.18474/3600 ≈ 0.25199 kg/s, the standard capacity unit for US aggregate crushers, coal-fired power plants, and pellet mills. ASHRAE steam-boiler size references, cement plant kiln output, and mine-hoist capacity are all quoted in short ton/h. A large gyratory crusher processes 1 000-3 000 short ton/h. 1 short ton/h ≈ 0.25199 kg/s ≈ 0.9072 t/h.
Quick Reference Table
| Pounds per day (lb/d) | Short tons per hour (ton/h) |
|---|---|
| 1 lb/d | 2.083 × 10-5 ton/h |
| 2 lb/d | 4.167 × 10-5 ton/h |
| 5 lb/d | 0.000104167 ton/h |
| 10 lb/d | 0.000208333 ton/h |
| 25 lb/d | 0.000520833 ton/h |
| 50 lb/d | 0.00104167 ton/h |
| 100 lb/d | 0.00208333 ton/h |