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Método para avaliação de viabilidade ambiental e econômica de sistemas de aproveitamento de água pluvial
| Content Provider | Semantic Scholar |
|---|---|
| Author | Marinoski, Ana Kelly |
| Copyright Year | 2012 |
| Abstract | The use of rainwater for non-potable uses in buildings has become an alternative that provides a reduction in potable water demand and minimizes problems related to availability of water resources. However, the installation of a rainwater harvesting system in a building requires greater amount of materials and equipment. Thus, there is a higher consumption of raw materials and embodied energy in the life cycle of the system components. The main objective of this work is to assess the environmental impact and investment feasibility analysis of rainwater harvesting systems by using the concepts of Life Cycle Analysis (LCA). In this method it is proposed to carry out environmental and investment feasibility for two scenarios, i.e., a scenario in which there is only a potable water system supplied by the water utility, and another scenario in which the potable water system is complemented by use of rainwater. For the environmental assessment, raw materials, embodied energy, emissions and waste generated by the major components of the systems were evaluated. As for the investment feasibility analysis, costs of materials, wages, operating costs, monetary benefit and corrected payback period were assessed. In order to assess the applicability of the proposed method, three case studies related to residential buildings design (low, medium and high standard) located in Florianópolis were conducted. Three types of rainwater storage tanks of were analyzed: plastic reinforced with glass fiber, high density polyethylene and reinforced concrete. The optimum rainwater tank capacity and the potential for potable water savings were verified by simulations performed using Neptune computer program. Results indicate that plastic tanks reinforced with glass fiber are more feasible in the environmental aspect, while concrete tanks are economically more feasible. The main conclusion is that the proposed method is suitable for assessing the environmental and investment feasibility of systems with rainwater utilization. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://repositorio.ufsc.br/bitstream/handle/123456789/94220/287387.pdf?isAllowed=y&sequence=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
