| 摘要 |
PROBLEM TO BE SOLVED: To provide a composition estimation method of organic sludge, evaluating quickly the whole composition of the organic sludge in the water-containing state in a biomass methane fermentation facility or the like.SOLUTION: This composition estimation method of organic sludge has processes of: estimating the amount of calcium phosphate compounds from the amount of phosphorus and calcium measured by using a fluorescent X-ray method; and estimating the amount of calcium carbonate from a calcium residual amount not included in the calcium phosphate compounds. Methane fermentation sludge is preferable as the organic sludge. |
