Sewage treatment method for removing nitrogen and phosphorus

摘要

The present invention relates to sewage treatment. More particularly, the present invention relates to a sewage treatment method for effectively removing nitrogen and phosphorus contained in sewage, and more particularly, to a sewage treatment method capable of removing nitrogen and phosphorus using food waste. Examples of the organic acid used in the sewage treatment include conventional ethanol, acetic acid and the like, and food waste obtained by fermenting organic acid can be used. In addition to the food waste, the sewage sludge may be fermented with an organic acid. Among the sewage treatment facilities, sewage sludge generated from the sedimentation basin contains a large amount of organic substances, which can be economically treated with nitrogen and phosphorus when used effectively.