欧氏贴近度模糊物元分析法优选制浆造纸中段水处理工艺

Selection of intermediate water treatment processes for pulp and paper industry using the fuzzy matter-element analysis based on eucli approaching degree

制浆造纸中段水处理工艺优选属于多方案、多指标的综合评价问题,本研究在模糊物元分析的基础上,结合优选理论中贴近度的概念,建立了制浆造纸中段水处理工艺优选的欧氏贴近度模糊物元分析法(FMEA),并通过均方差法确定指标权重。通过建立评价指标体系,从技术性能、经济费用和管理效果3个方面对传统活性污泥法、完全混合活性污泥法、氧化沟法和序批式活性污泥法(SBR)进行评价,结果表明,SBR法技术性能和经济费用最优,氧化沟法管理效果和综合评价最优,为不同条件下优选制浆造纸中段水处理工艺提供了参考依据。

The best selection of wastewater treatment processes for pulp and paper industry is a comprehensive problem consisting of multi schemes and indexes. On the basis of fuzzy matter-element analysis(FMEA) and the concept of approaching degree in preferred theory,FMEA based on euclid approaching degree was made in this study and the index weights were determined by the mean variance method. An analysis was made on the four kinds of processes:traditional activated sludge method,completely mixed activated sludge method,oxidation ditch method and sequencing batch reactor( SBR) by establiment of the evaluation criteria system including technical performance,economic benefit and management effect. The results show that SBR is the best in technical performance and economic benefit,oxidation ditch method is the best in management effect and comprehensive evaluaiton. The study provides the references for selecting indermediate water treatment processes for pulp and paper industry in various conditions.