| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a filter member which is used in a solid-liquid separation apparatus for separating a floating substance in sewage in the whole of a water treatment field, especially, a solid-liquid separation apparatus for separating a floating substance in biological treatment for biologically cleaning heavilly polluted organic sewage such as river water, lake and marsh water, excretion, sewage or industrial wastewater advanced and solved in problems at with a conventional precise filter film, a porous filter member or a nonwoven fabric, and an apparatus and method for solid-liquid separation using the same. SOLUTION: The filter member has at least two or more fixed layers wherein a first layer on an inflow side of a liquid to be treated is a separation function layer and a layer on and after a second layer is a flow dividing action layer. The apparatus and method for solid-liquid separation use this filter member.</p> |
