基于物元可拓集法的蛟龙污水处理厂出水水环境质量评价

可以从定性、定量两个角度解决问题的物元可拓法已被广泛应用于各个领域。选取具有代表性的BOD5、NH3-N、石油类、CODcr、粪大肠菌群五项指标为待评物元,取Ⅰ至Ⅴ类水质标准对应的取值范围构造经典域物元矩阵,按照污染贡献率法确定各特征的权重,应用建立的水质评价物元模型计算出关联度0.10,得出该污水处理厂出水环境质量属于Ⅲ级。研究表明,运用物元可拓集模型评价水环境质量具有可信性和实用性。

Water Environmental Quality Assessment of Sewage Treatment Plant Effluent Based on Matter-Element Extension Set Method

Matter-element extension method which can solve the problem from both qualitative and quantitative has been widely applied in various fields.The typical BOD5,NH3-N,petroleum,CODcr,fecal coliform bacteria were chosen as the matter-element.The classical field matter-element matrix was built,the degree of association was calculated by the established water quality evaluation matter-element model and the result was 0.1 which showed the water environmental quality of sewage treatment plant effluent was grade Ⅲ.The study showed that evaluate water environment quality by using the matter-element extension model was crediblity and practical.