| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for producing an organic fertilizer by which shellfishes such as Mytilus edulis thickly growing in a seawater intake channel, etc., of various kinds of plants such as power stations can simply be converted into a fertilizer at a low cost. SOLUTION: An operation to remove shellfishes in a water intake channel→a step for grading shells and shell fleshes (vibrating type or rotating type grading)→a step for dehydrating treatment with a centrifugal separator to a pulverizing step with a shell pulverizer are performed in the spot. An organic fertilizer is then produced by a step for fermentation treatment with a primary fermenting machine→a step for secondary fermentation treatment in a room→a step for pelletizing. The pulverized shells or shell fleshes, etc., are blended with an organic fertilizer raw material for promoting the fermentation such as poultry manures, coffee bean pulps or organic sludges to thereby recycle most of the shells, algae, sludges, etc., collected from the water intake channel to the organic fertilizer. The cost can remarkably be reduced by the treatment on the spot.</p> |
