The impact of high water level inflow impact load on the operation efficiency of water treatment processes

Abstract

Taking a water plant in Chongqing as the research object, this paper explored the impact of the water influent impact load on the process operation effect of the water plant during the high and low water level survey period of the Jialing River, which is the source water of the water plant. The results shown that under the constant changes of high and low water level influent impact loads, the structures of the water plant had strong impact load resistance. Under high water levels, the water plant had a strong impact on dissolved organic carbon (DOC), total nitrogen (TN), ammonia nitrogen (NH4+−N) and dissolved organic nitrogen (DON) increased by 5.91%, 16.35%, 2.34%, and 9.67% respectively compared with the low water level period; the effluent concentration of pollutants in each structure increases with the increase of influent concentration, and there was a significant linear relationship between the two; under high and low water levels, the pollutants gradually decrease along the treatment process of water plant. In addition, the study found that for water plants with large changes in influent load, high-density clarifier technology can be used to effectively remove pollutants.