| 摘要 |
<p>It is intended to provide water−floating zeolite composites which do not immediately sediment but float in water and thus can remain in contact with various wastewaters or the like to be treated over a prolonged period of time.A water−floating zeolite composite composed of a zeolite powder layer(1)and a support which holds it and has an apparent density of from 0.9 to 1.0.The support may be in the form of grains,a hollow article(2),a fiber,a mesh,a tape,a honeycomb,etc.It may further hold a substance having a catalytic action,an aggregation aid,an adsorbent,etc.As a preferred example,a constitution wherein the support holds a microorganism capable of degrading organic matters and zeolite provided on the surface of the support holds an aggregate reagent may be cited.When such a composite is poured into town sewage,plant wastewater or the like and stirred therein,suspended matters first aggregate together to form flocks and sediment to give clarified transparent supernatant water.Next,organic contaminants dissolved in the transparent water are consumed and degraded by the microorganism.</p> |
