水质模型与CMB相耦合的河流污染源源解析技术

开发了水质模型与化学质量平衡模型(CMB)相耦合的河流污染源源解析技术,用于解析上游断面、直排工业源、支流源和未知源对河流受体断面的污染贡献。该技术可解析具体污染源对环境受体的相对贡献率和绝对贡献值,并附有诊断指标以判断拟合结果的优劣。利用开发出的源解析模型对山东省小清河主要断面进行了解析,发现解析结果与实际情况相符且满足诊断指标要求。扩散模型与受体模型的有机结合,提高了解析结果与实际情况的符合程度。

SOURCE APPORTIONMENT TECHNOLOGY OF RIVER POLLUTION SOURCE BY WATER QUALITY MODEL COUPLING WITH CMB MODEL

Source apportionment technology of river pollution source with water quality model coupling with chemical mass balance ( CMB) model was developed． This model was used to analyze the contribution of the upstream section，direct discharge industry sources，branch sources and unknown sources to the receptor section of the river． The technology could analyze the relative ratio and absolute value of the specific sources' contributions to the receptor，and have the assessment indexes to evaluate the results． The source apportionment model was applied to the main sections of Xiaoqing River in Shandong Province． It was found that the analytical results coincided with the reality and could meet the demands of the assessment indexes． The organic combination of diffusion and receptor model enhanced the conformity degree between source apportionment results and the actual conditions．