Model for evaluating the ecological health of municipal solid waste treatment system

Abstract

Ecological municipal solid waste (MSW) treatment systems are complex systems engineering concerning with multiple objectives and hierarchical levels. By combining an extension method with fuzzy logic theory, this paper investigated key technologies required by the comprehensive evaluation of ecological health. The method includes the construction of an evaluation system, quantification of evaluation indices, development of a matter-element model, development of an extension evaluation method, and assignment of a blended weight that combines subjectively and objectively estimated weights. This approach was used to develop a comprehensive model for evaluating the ecological health of an ecological treatment system for MSW. The model was then applied to a case study, and the results demonstrated that the model is a reasonable and effective.

Shengmai Yin formula modulates the gut microbiota of spleen-deficiency rats

“…Microecological advances have provided accumulating evidence on the positive correlation between spleen deficiency and alterations in the composition of the gut microbiota [ 7 ]. Consistent with previous studies [ 30 , 31 ], the spleen-deficiency model rats in this study presented with diarrhea, reduced dietary intake, weight loss, different degrees of lymphocyte infiltration and aggression in the submucosa, and a significant reduction in richness and diversity of the gut microbiota. This study further revealed that SMY intervention could reverse the structural variations in the gut microbiota induced by spleen deficiency, and enhance the effects on microbial richness and diversity.…”

Multi-criteria decision making to support waste management: A critical review of current practices and methods

“…Another option is the association of data-centric methods with opinion-based approaches enabling the combination of desired properties of each one (Zheng et al, 2010). Among the studies investigated, only Wang and Zhang (2008) and Liu et al (2014b) presented a hybrid approach to define weights combining these two weight attribution streams. Wang and Zhang (2008) combined stakeholders opinion with weights defined based on the correlation between criteria scores and global index results, whereas Liu et al (2014b) associated expert judgments with objective weight defined based on the TOPSIS method.…”

“…Among the studies investigated, only Wang and Zhang (2008) and Liu et al (2014b) presented a hybrid approach to define weights combining these two weight attribution streams. Wang and Zhang (2008) combined stakeholders opinion with weights defined based on the correlation between criteria scores and global index results, whereas Liu et al (2014b) associated expert judgments with objective weight defined based on the TOPSIS method. The aforementioned article shows that subjective and objective methods result in different weights, and based on this finding they conclude that the unilateral assessment in only one method may lead to inaccurate and incomprehensive results.…”