| 摘要 |
A filter for purifying wastewater is provided to make cotton not to cut off the flow of wastewater by letting woof and thread of the cotton be formed in the same direction in which wastewater flows. A cotton filter(100) is manufactured by stacking cottons, and the cottons weaved from threads(111) and woofs(112) are stacked being laminated in the filter. The directions of the thread and woofs are identical to the direction of the flow of the waster. Microorganisms live at the cotton filter. |
