| 摘要 |
<p>PURPOSE: A treatment method of waste water using filtration by aerobic microorganism is provided, which is characterized in that filtration media is filled in the reaction tank with aeration device and several nozzles. CONSTITUTION: Wastewater and air are mixed and flow up through the filtration media. Aeration device supplies air uniformly, so that clogging which microorganisms become rotten is prevented, and channeling which air supplies to only one side is prevented. Clay or fly ash to which microorganisms are stuck easily is used as filtration media. Aerobic microorganism in the media (22) disintegrates organic matters and nitrogen components, and treated water is discharged through the weir (19). Air is supplied to lower chamber (13) through the nozzle (30) for back washing, and programmable logic controller can control the system automatically.</p> |
