| 摘要 |
<p>PROBLEM TO BE SOLVED: To continuously and efficiently treat waste water by treating waste water of high concentration by using microorganisms which are mainly bacillus and further subjecting the waste water with lower concentration obtained in the above treatment to biofilm treatment. SOLUTION: The method for treating waste water by microorganisms has the following features. A culture tank of microorganisms is charged with the waste water, microorganisms which are mainly bacillus and an activating agent for the microorganisms so as to breed and culture the microorganisms under aerobic conditions. Then the treated water is subjected to biofilm treatment and sent to a precipitation tank, while a part of the sludge of microorganisms produced by the biofilm treatment is returned to one of or both of the culture tank of microorganisms and the biofilm treating tank.</p> |
