| A First Flush Device for
Rainwater Collected and Stored in Rural CisternsJosé Barbosa dos Anjos EmbrapaSemi-Árido Cx. Postal 23,CEP 56300-000 Petrolina-PE, Brasil E-mail: jbanjos@cpatsa.embrapa,br
Abstract In order to improve the quality of rainwater collected from roofs of rural buildings and storage in cisterns, a system composed of a collector tank, a siphon (T of PVC), a buoy and tubes was developed. The objective was to eliminate some of the impurities contained in the reception area. The water collected from the first 4 millimeters of each rainfall, is deviated through a "by pass" together with the impurities and diverted into a collector tank, thus transporting all possible pollution and polluting agents. |
