| 摘要 |
<p>An objective of the present invention is to avoid film flux deterioration in a collection processing assembly and sustain reliable operation over the long term when collecting and recycling biologically processed water of organic sewage which is processed with a filter device and a reverse osmosis membrane separation device. An organic sewage collection processing device biologically processes organic sewage, filters the obtained biologically processed water with a filter device (2), and thereafter desalinates the resulting filtered biologically processed water with a reverse osmosis membrane separation device (4). When supplying the reverse washed sewage of the filter device (2), the chemically washed sewage of the filter device (2), and the concentrated water of the reverse osmosis membrane separation device (4) to a biological processing device (1) for biological processing, the water which is supplied to the biological processing device (1) is processed with an agglutination/solid-liquid separation device (5) before being supplied to the biological processing device (1).</p> |
