| 摘要 |
<p>The apparatus for waste water treatment has, in a tank (30), a contact circulation part (3) in which Bincho charcoal (9) is accommodated, a sprinkling circulation part (15) which is disposed above the contact circulation part (3) and in which black coal (12) is accommodated, air lift piping (7) for lifting treatment-object water from the contact circulation part (3) to the sprinkling circulation part (15), a water-sprinkling tube (14) for sprinkling the treatment-object water onto the sprinkling circulation part (15), an aquatic plant cultivation bed (11) disposed between the contact circulation part (3) and the sprinkling circulation part (15), and air-diffusing tubes (5) for introducing malodorous gas. Small quantity of surfactants and colorants are adsorbed by the Bincho charcoal (9) and the black coal (12) and decomposed by microorganisms that have grown in the Bincho charcoal (9) and the black coal (12). The microorganisms act to biologically decompose the malodorous gas. <IMAGE></p> |
