| 摘要 |
<p>PURPOSE:To carry out waste water treatment without generating a foul odor, to unnecessitate treatment such as dilution even for water of high concentration waste and to reduce the quantity of precipitated sludge when organic waste water is subjected to decomposing treatment with microorganisms by adding aluminum ions to the organic waste water so that the aluminum ion concentra tion may be the specified value. CONSTITUTION:Waste water is introduced from a raw water tank 10 through a flow adjusting tank 12 into a primary aerator 14, where aluminum of low concentration is added to increase bacteria. Further, selected bacteria are cultured under conditions of 1mM aluminum ion concentration and into which mineral fragments are mixed. Next, organic waste water is added to this primary aerator 14 from the raw water tank 10 by 1/10 quantity to perform aeration. Here, aluminum ions are added to the organic waste water so that the aluminum ion concentration may be 0.1-0.5mM. To the organic waste water which has been subjected to decomposing treatment by this method, aluminum ions are further added so that the aluminum ion concentration may be >=4mM.</p> |
