Summary of Design Recommendations
Domestic waste‒composition investigation into different solid waste‒generation sources shows that the largest amount of domestic waste is generated at dormitories and faculties. Managing and controlling domestic-waste generation at dormitories and cafeter
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Summary of Design Recommendations
7.1 Design of Solid-Waste Management Domestic waste‒composition investigation into different solid waste‒generation sources shows that the largest amount of domestic waste is generated at dormitories and faculties. Managing and controlling domestic-waste generation at dormitories and cafeterias has a significant effect of reducing organic waste and could reduce half of the total domestic waste. According to the comparison of recyclable materials generated from different sources, the results show that the most important sources of recyclable materials generation are dormitories because they generate 40 % of these materials follows by faculties, with 27 % generation. Therefore, dormitories and faculties are two hot spots in terms of recyclable-materials generation that should be considered. Comparing recyclable materials collected at the source and those existing in disposable waste shows that the greatest part of recyclable materials generated are transferred for disposal and more than 25 % could not be collected more than 25 % at the source. Furthermore, 3.6 tons of compostable waste, 1.6 tons of recyclable materials, and 1.9 tons of usable waste for the anaerobic-digestion method are generated per day. According to the solidwaste composition, some solid waste‒management scenarios were suggested, and they were compared using LCA and AHP. Combining of the life-cycle analysis (LCA) and analytical hierarchy process (AHP) results in the cluster-analysis method illustrates that scenario 5—by integration of 20 % RDF, 40 % composting, 20 % anaerobic digestion, and 20 % recycling—is the most appropriate solid waste‒management system.
© Springer International Publishing AG 2017 P.T. Ghazvinei et al., University Campus Solid Waste Management, SpringerBriefs in Environmental Science, DOI 10.1007/978-3-319-43228-1_7
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7 Summary of Design Recommendations
7.2 Conclusion of the Solid Waste‒Management Plan Considering the management of this amount of waste, life-cycle assessment and analytical hierarchy process, respectively, were applied to analyze the environmental and economic aspects of solid-waste management. The main focus of the investigation was on selecting the best solid waste‒treatment technology and integrated solid waste‒management system using AHP, LCA, and cluster-analysis methods. The selection of an appropriate solid waste‒treatment system is evaluated by a decision-maker to achieve defined goals by AHP and LCA methods. AHP was applied here to assign priorities to the alternatives based on the model hierarchy structure for solid-waste treatment, which is described in following paragraphs. 1. Solid waste from the campus shows a great potential for reutilization. Results show that the composition of waste are 20 % compostable, 20 % recyclable, 40 % usable for anaerobic digestion, and 20 % mixed waste. Six different solid waste‒ management scenarios were compared in terms of environmental and economic impacts. 2. The LCA investigation was conducted to determine the en
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