| 摘要 |
<p>PURPOSE: To adjust a pH to a level suitable to an activity of methanogen with a low amount of pH adjusting agent and to efficiently execute an anaerobic treatment. CONSTITUTION: In an anaerobic treating method in which org. waste water is passed through an anaerobic reactor 1 keeping an anaerobic sludge 2 containing anaerobic microorganisms in one direction stream substantially, the pH at the vicinity of an inflow part 5 of a liq. to be treated in the anaerobic reactor 1 is measured with a pH measuring device 6, a quantity of the pH adjusting agent to be injected to the liq. to be treated from a chemical injecting pump 13 is controlled with a controlling device 14 so that this measured value may be kept at a prescribed value.</p> |
