针对我国目前广泛开展的农村生活污水治理中收集处理模式较难抉择的问题:从技术、经济及生态环境的角度出发,确定方案评价指标体系。分别采用层次分析法(Analytical Hierarchy Process,AHP)、AHP-熵权法确定指标综合权重;结合逼近于理...针对我国目前广泛开展的农村生活污水治理中收集处理模式较难抉择的问题:从技术、经济及生态环境的角度出发,确定方案评价指标体系。分别采用层次分析法(Analytical Hierarchy Process,AHP)、AHP-熵权法确定指标综合权重;结合逼近于理想解排序法(Technique for Order Preference by Similarity to An Ideal Solution,TOPSIS)进行方案排序。然后以典型的合肥市某地区农村污水治理为例,结合不同方案中污水收集处理模式的特点,对该方案优选模型的有效性进行验证。结果表明,采用两种方法确定指标权重时四种方案与最优方案的接近程度分别依次为0.770、0.319、0.259、0.026和0.970、0.236、0.060、0.003,两种方法方案优选结果基本一致,均表现为方案一明显优于方案四。展开更多
In this study, 8 kinds of desiccation models and 3 kinds of collection models were studied for banana stems. The results showed that the crushing-com- pression-air drying processing model showed the best desiccation e...In this study, 8 kinds of desiccation models and 3 kinds of collection models were studied for banana stems. The results showed that the crushing-com- pression-air drying processing model showed the best desiccation effect for banana stems. Under this desiccation model, the moisture content was reduced from 90.5% to 19.93% with weight reduced by 75.2%; after 3 to 6 months of storage, the mois- ture content was still remained within 17%-20%, and the volume was decreased to 30%-40% of the original volume of fresh banana stems. This desiccation model made banana stems basically meet the requirements by drying storage. The plant- cutting down-crushing-compression-transportation-desiccation-storage production model was initially developed for desiccation and collection of banana stems, which would lay a certain foundation for the utilization of banana stem resource by enterprises.展开更多
文摘针对我国目前广泛开展的农村生活污水治理中收集处理模式较难抉择的问题:从技术、经济及生态环境的角度出发,确定方案评价指标体系。分别采用层次分析法(Analytical Hierarchy Process,AHP)、AHP-熵权法确定指标综合权重;结合逼近于理想解排序法(Technique for Order Preference by Similarity to An Ideal Solution,TOPSIS)进行方案排序。然后以典型的合肥市某地区农村污水治理为例,结合不同方案中污水收集处理模式的特点,对该方案优选模型的有效性进行验证。结果表明,采用两种方法确定指标权重时四种方案与最优方案的接近程度分别依次为0.770、0.319、0.259、0.026和0.970、0.236、0.060、0.003,两种方法方案优选结果基本一致,均表现为方案一明显优于方案四。
基金Supported by Key Project of the National Twelfth-Five Year Research Program of China(2012BAC18B03)Natural Science Foundation of Hainan Province(414195,313106)~~
文摘In this study, 8 kinds of desiccation models and 3 kinds of collection models were studied for banana stems. The results showed that the crushing-com- pression-air drying processing model showed the best desiccation effect for banana stems. Under this desiccation model, the moisture content was reduced from 90.5% to 19.93% with weight reduced by 75.2%; after 3 to 6 months of storage, the mois- ture content was still remained within 17%-20%, and the volume was decreased to 30%-40% of the original volume of fresh banana stems. This desiccation model made banana stems basically meet the requirements by drying storage. The plant- cutting down-crushing-compression-transportation-desiccation-storage production model was initially developed for desiccation and collection of banana stems, which would lay a certain foundation for the utilization of banana stem resource by enterprises.
