| 摘要 |
<p>PURPOSE: An apparatus and a method for purifying river are provided to purify the river by purifying the river through bio modules as supplying oxygen required for growth of microorganisms using ultra-fine bubble inflow valves. CONSTITUTION: The apparatus comprises a filtering tank containing a contactor(304) for adsorbing, filtering, decomposing and settling contaminants of a river; sludge hoppers(403) installed at a lower part of the filtering tank to remove sludge settled in the filtering tank; ultra-fine bubble generators(412) installed at an outer part of the filtering tank to supply oxygen into the filtering tank; first transport pipe(404) for transporting some of river water passing through the filtering tank to the ultra-fine bubble generators; and second transport pipe(405) for transporting some of the river water transported to the ultra-fine bubble generators and ultra-fine bubbles produced in the ultra-fine bubble generators to the filtering tank, wherein the filtering tank comprises first reactor(407) connected to the second transport pipe and maintained in the aerobic conditions, and second reactor(408) that is not connected to the second transport pipe and maintained in the anaerobic conditions, and wherein the apparatus further comprises first storage tank(401) positioned in front of the first reactor to settle soil and sand in river water flown in from the outside, and second storage tank(402) positioned in rear of the second reactor to discharge purified river water and supply some of the purified river water to the ultra-fine bubble generators through the first transport pipe.</p> |
