PL97048B1 - WATER TREATMENT METHOD AND WATER TREATMENT SYSTEM - Google Patents

Description

The subject of the invention is a method for purifying water and a system for purifying water in sewers, settling tanks or other water reservoirs containing industrial pollutants, especially phenol. Factory sewage, in which the oxygen content has fallen below a certain limit, are not capable of self-cleaning, they are dead waters It turned out that the introduction of oxygen to such water above the lower limit restores the possibility of self-purification and regeneration of this river and the resumption of biological life. There are known methods of purifying factory sewage or rivers into which sewage with a significant content of phenolic pollutants and the like is introduced by oxygenating them with pure oxygen or air. In the case of oxygenation with oxygen, it is continuously introduced into the water. The oxygen oxygenation system is equipped with an oxygen supply device for the sole purpose of regenerating the waste water, pipework and possibly fans. Oxygen is introduced into the water through known aerating devices. The known method of oxygenation and the system are expensive to operate, especially due to the significant costs of building and operating an oxygen generating plant. For a reason, this method was not widely used. The method of air oxygenation consists in introducing atmospheric air into polluted water by means of devices installed on the shores of these waters. In the solution according to the invention, oxygen is introduced into the polluted water cyclically in a shock manner. The oxygen content of the mix varies from 98 to 24 percent at a constant mix flow rate. In the system supplying the oxygen mixture, there are two valves controlled by a gate valve through the actuator. The valves are installed in the pipelines connecting the oxygen and air inlets. The application of the solution allows to restore the self-cleaning ability of the flowing waters by resuming biological life in them as a result of cyclic impulse introduction of oxygen. An additional advantage of the solution is the possibility of managing the excess oxygen created as a result of its non-cyclical reception in the plant's production cycle.2 97 048 The subject of the invention will be explained on the basis of an example of an embodiment presented in the attached drawing, which shows the sewage oxygenation system. Oxygen pipelines and air pipes / a 2. connecting the fan 3 with the oxygen 4 and air intake 5 have valves 6 and 7 controlled by a common damper 8 through the actuator 9. The fan 3 is connected to the aerating device 10 by a conduit 11. Fan 3 forcing the pipeline 11 the amount of the oxygen mixture is fed from the oxygen part 4 and air 5. The composition of the oxygen mixture is regulated by a common damper 8 installed on the valves hi 7. The amount of oxygen taken by the fan 3 depends on the production cycle of the plant and can vary from l) H to 24 percent . PL

Claims (2)

Claims 1. A method of purifying water containing contaminants, especially phenolic ones, by oxygenating it with oxygen in canals, settling tanks or other water reservoirs, characterized by the fact that oxygen penetrates the contaminated water cyclically in an impulse manner, and the oxygen content in the mixture is variable and ranges from 98 to 24 percent, with a constant amount of oxygen mix. 2. A system for purifying water containing pollutants, especially phenolic ones, consisting of an oxygen and air intake, a fan, aeration devices, characterized by the rear, pipelines (I) and [2) connecting the fan (3) with the oxygen (4) and air intake ( 5) have valves (6) and (7) controlled by the gate valve (8) through the actuator ozone (9). 5 7 8 Works. Typographer. UP PRL, circulation 120 + 18 Price PLN 45 PL