Avaliação dos sistemas de reutilização da água de lavagem dos filtros de uma estação de tratamento de água: estudo de caso
DOI:
https://doi.org/10.5902/2236130814057Keywords:
Economic viability, RecirculationAbstract
This article presents a study of technical and economic feasibility of recirculation of washing water filters Water Treatment Plant City Goianesia -GO. Through laboratory tests the raw water and filtered water washing water after use in the filter was determined that the wash water could be used for recirculation in the system, it is necessary to make one settling tank, which was calculated so that the total volume would supply flushing of all the filters for one day and one lift was designed to pump water to enter the system. After technical analysis confirm that there is feasibility for the deployment of the system was made an economic analysis if the investment to be made for the implementation of the system would be economically feasible and what would be the period when there is water utility (SANEAGO) could profit in deployment. After the economic evaluation of the best alternative is concluded that ETA for the relevant recirculating water from the washing of filters is both economically and technically feasible. The return on investment with the implementation of this system will be 14 years and 9 months for the worst case scenario analysis (based financing from BNDES to 13.5 % and considering only the savings of pumps.Downloads
References
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