Barragem subterrânea no Semiárido do Ceará: caracterização e análise da viabilidade econômica

Abstract

The limitations of soil and rainfall at Ceará´s semiarid challenge the government agents in pursuit of improving the living conditions of the countryside man and reduce pressure on the environment. An alternative that can contribute to this improvement is the underground dam. Through cost-benefit analysis, it was identified the financial and social viability of a standard dam. For investments of R$ 14,717.00 and operating costs of R$ 3,236.00 applied on the standart underground dam, it was found: 58,0% of profitability, 3,5 years for recovery of investments, family income of R$ 865,16 per month. About the economic cost-benefit (B/C) analysis of the project, the ratio B/C was 2.14 and the internal rate of return (IRR) was 212%. From a financial approach the IRR was 60.62% and the B / C was 1.63. The indicators found indicate the high viability of underground dam.