Agricultural & Natural Resources Development Home Page | Land Reclamation Home Page | Effect of Digestion Method, Siderite Content, and Fizz Rating on Neutralization Potential of Overburden Samples
Table 9. NP values (metric tons per 1000
metric tons) of 8 overburden samples when samples were digested
in different amounts of acid by the CONSOL lab. 
| Acid Volume and Strength | ||
| Sample | 20 ml of 0.1M HCl | 80 ml of 0.1M HCl |
| metric tons per 1000 metric tons | ||
| Fe | ||
| 1 | 29 | 97 |
| 2 | 25 | 93 |
| 3 | 14 | 85 |
| 5 | 26 | 136 |
| S | ||
| 3 | 23 | 51 |
| 5 | 4 | 7 |
| Si | ||
| 11 | 22 | 58 |
| 15 | 6 | 20 |
