| 摘要 |
The present invention discloses auxiliary devices to improve drainage operation which are integral with the sewage and rain waters separation system for the achievement of the following purposes: 1.- To avoid emanation of toxic gases, polluting agents such as virus, and microbes which are harmful to humans' health. 2.- To prevent rain waters from contaminating sewage waters during COUNTER-FLOWS produced during raining periods, that cause faecal matter which contaminates houses interiors, footways and small town streets, to emerge from the sewer. 3.- By keeping sewage waters isolated from rain waters, it is possible to channel rain waters by means of suitable structures for restituting the underground Aquiferous Mantle from which liquid is extracted by pumping in order to provide drinking water to the inhabitants of Mexico, Federal District. 4.- This process, which is based on the AUXILIARY DEVICES mechanisms System, allows these works to be developed by zones and by stages, which makes them extremely easy and economical. 5.- The easiness with which these mechanisms are placed, dismounted and cleaned, makes them very practical and functional. 6.- The system allows for a separate handling of sewage and draining of rain waters at minimum costs.
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