| 摘要 |
<p>PURPOSE:To produce the subject material accelerating a self-purifying function of a river and a lake by microorganisms, maintaining an improving effect on water quality over a long period of time, and also capable of production inexpensively and easily and capable of handling easily. CONSTITUTION:A carrier 2 consisting of a porous substance is covered with a bag-like microorganism-sticking medium 3 of a net bag or a bag of cloth, and microorganisms are stuck both on this carrier 2 and the microorganism- sticking medium 3 and propagated. A contaminated water is treated by decomposing and removing an org. matter in water with the propagated microorganisms, etc.</p> |
