EVALUATION OF POTENTIAL USE OF DOMESTIC TREATED EFFLUENTS FOR IRRIGATION IN AREAS SUBJECT TO CONFLICTS OVER WATER USE IN PARACATU RIVER BASIN

• Autor(a) principal: Melo, Marilia Carvalho
• Data de Publicação: 2020
• Outros Autores: Pereira Santos, Ana Silvia, Pinheiro Santos, Nádia Antônia, Magalhães de Araújo, Bruna, Rosa Silva de Oliveira, Josiane, Ribeiro Campos, Alessandro
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Caminhos de Geografia
• Texto Completo: https://seer.ufu.br/index.php/caminhosdegeografia/article/view/50442
• topic: Reuso; Estação de tratamento de esgoto; Agricultura irrigada; Reuse; Sewage treatment plants; Irrigated agriculture

The water crisis experienced in recent years in the State of Minas Gerais, Brazil, has corroborated the need of conscientious use of water, based on use-efficient technologies, capable of inducing reuse. Considering worldwide experiences, this study had the objective of analyzing the potential use of domestic sewage treated in irrigated agriculture in the Paracatu river basin, a region recognized as a water conflict area by the State Government. The methodology consisted of evaluating current uses and comparing the volume of raw water demand for irrigation to the volume generated in the sewage treatment plants in the Paracatu river basin; estimating the cost of effluent trucking down to the treatment plants; and comparing the established values paid for the use of raw water and the estimated cost of treated effluent transportation. Water demand for irrigation is approximately 182 x 106 m3/year and the volume produced by the sewage treatment plants is 8,36 x 106 m3/year, approximately 4,6% of the irrigation demand. The comparison between the established values paid for the use of raw water and the estimated cost of treated effluent transportation indicates a relationship between 12 e 2%.