| 摘要 |
<p>PURPOSE:To efficiently purify water, by partitioning a part of lakes and marshes into sections by sheets to thickly grow an aquatic plant and blowing air in water to disperse dirty substances throughout the water. CONSTITUTION:A part of lakes and marshes is partitioned by providing sheets under tension so as to reach the bottom part of lakes and marshes and air is blown in water while a movement stand 5 combined with a submerged pump and an aerator is moved in the demarcated sections to disperse dirty substances on the bottom throughout water under stirring to subject the same to contact oxidation. Decomposed suspended substances, nutrients and heavy metals are absorbed and purified by an aquatic plant 2 and, after the completion of purification, the positions of the sheets are moved to perform similar purification.</p> |
