| 摘要 |
<p>Provided is an anaerobic treatment method which enables the treatment of organic discharged water having a high solid concentration with high efficiency and at low facility cost. Raw water having a solid concentration of 1000 mg/L or more is treated in an acid generation vessel (1), then the treated water is supplied to a pH adjusting vessel (2) by means of a pump (P1) to adjust the pH value of the water, and then the pH-adjusted water is allowed to pass through a reaction vessel (3), in which a fluid non-biological carrier (4) is filled, in an upward flow direction by means of a pump (P2). A portion of outflowing water from the reaction vessel (3) is circulated into the pH adjusting vessel (2) as circulating water, and the remainder of the outflowing water is discharged to the outside of the system as treated water.</p> |
