| 摘要 |
The present invention relates to an ash and solid concentrating filter for a biofilter apparatus in a fish farm used to purify culture water discharged from a fish farm on the ground. The culture water containing a solid such as ash separated from the culture water from which organic matter is removed by a microorganism accommodated in a bio-filtering water tank is supplied through an inflow pipe and the culture water containing the solid is allowed to flow to a flow path that is formed between a rise guide pipe, a lowering guide pipe, and a chamber pipe which have a predetermined gap and are configured to be overlapped. Then, the solid is moved through the flow path before being precipitated downward due to its own weight so that the concentrated ash flows below the chamber pipe to be utilized as a bio-filtering material while the remaining ash concentrated is discharged and the filtered culture water from which the solid is removed is discharged out of the chamber pipe through a discharge pipe positioned in the flow path formed between the lowering guide pipe and the chamber pipe. The culture water containing the solid flows into the hollow of the rise guide pipe first and then the culture water is allowed to flow through the flow path which is the space that is formed between the rise guide pipe, the lowering guide pipe, and the chamber pipe, and thus the solid contained in the culture water is precipitated downward from the chamber pipe and is discharged to the outside during the flow of the culture water upward and downward while the culture water from which the solid is filtered can be discharged out of the chamber pipe through the discharge pipe positioned in the flow path which is formed between the rise guide pipe, the lowering guide pipe, and the chamber pipe. |
