| 摘要 |
A double filtration type pond purification apparatus is provided to neutralize various organic acids, and adsorb and remove various heavy metals by stacking block type filtering meshes in a filter tank such that water of a pond passes through the filtering meshes and filling crushed shell pieces in the filter tank such that microorganisms multiply on the crushed shell pieces. A pond purification apparatus is characterized in that a plurality of filtering chambers(11) are formed in a filter tank(10) by partitions(12), the filtering chambers are sequentially connected by passages(13) to flow and discharge contaminants in one direction, block type filtering meshes(20) containing crushed shell pieces are solidly filled in most of filtering chambers to provide an environment in which microorganisms can degrade organic matters in the contaminants; and filtering bags(30) containing shell grains are irregularly filled in residual filtering chambers to adsorb and remove heavy metals in the contaminants passing through the filtering meshes. The filter tank has an inlet(14) and an outlet(15) to circulate water of a pond or a lake. The partitions have the passages alternately formed in upper and lower end portions thereof. Further, widthxlengthxheight of the block type filtering meshes is 300mmx300mmx150mm. |
