Method for determining use end point of acidic wastewater after neutralization in biochemical sludge treatment

The invention belongs to the field of wastewater biochemical treatment, and particularly relates to a method for determining a use end point of acidic wastewater after neutralization in biochemical sludge treatment. The technical purpose is to provide a method for determining a use end point of acidic wastewater after neutralization in biochemical sludge treatment, wherein the sludge settling ratio, sludge concentration or sludge inorganic content of biochemical sludge are judged, thereby judging the use end point. The method determining the use end point of the acidic wastewater after the neutralization in the biochemical sludge treatment eliminates the environmental risk through sensory observation to approximately determine whether or not the biochemical sludge needs to be replaced, thereby guiding the specific time of sludge removal and fresh sludge adding in a wastewater treatment process, and providing a reliable basis for stable discharge standard for wastewater treatment. 本发明属于废水生化处理领域，具体涉及种生化污泥处理中和后酸