| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To perform purification treatment for sewage using a simple apparatus over a long period. <P>SOLUTION: In the purification membrane for the treatment of sewage, shells are stuck to a network structure with a sieve mesh size of 9 to 400 cm<SP>2</SP>composed of a beltlike or round rope, and, in a state where the shells are stuck, the network structure has a mesh size of a net. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
