The Prediction of Pollution on Underground Water from Ash-Water of Power Plant Ash-Field

Abstract

On the basis of analysis of ash-water from Baoding power plant, chemical components of underground water and the condition of environmental hydrology the prediction on pollution from ash-water permeation was carried out by applying one- dimensional homogeneous mathematical model. The results show that ash-water will not take bad influence on the water quality of water source of Baoding city to ash-field 5000m in the short time. Keywords-ash-water; underground water pollution; pollution prediction At present, the domestic power plants in china use widely ash-hydraulic transport system, buck and fly ash are stored together in ash yard. Since most of ash yards belong to half closed circulating or half open system, there isn't ash yard becoming the center of underground water reverse filler. At the same time, the various contaminants in ash water seep with ash water to underground water causing pollution of underground water of ash yard around area. After contaminants enter underground water and move and spread in water, which will cause secure dangerous for the quality of water source for the resident living in the ash-field. Therefore the scientific prediction of pollution on underground water from ash-water is a very meaningful job for the power environmental protection workers. The ash yard of Baoding power plant is working object; we analyze the content of each contaminant in ash-water and underground water, and at the same time make detailed investigation of the environmental hydrogeology condition of ash yard around. On this foundation applying one-dimensional homogeneous mathematical model predict the moving condition in underground water of the contaminant Cl- and COD which is very important in ash-water in order to offering scientific basis for preventing pollution on underground water from ash-water.