Patent ID: 8696907
Filing Date: 2014-04-15
Classification: C02F,Y02W

Abstract:
1. Plant for the treatment and disposal of waste water containing salts and oil, in particular water used in oil production, comprising a feeding duct for supplying the waste water, at least one reed bed area having plants for the uptake and degradation of contaminants in the waste water, at least one modular basin area having a plurality of utility basins, which are designed for the cultivation of plants, algae, for the culture of animals, fish, shrimps and/or micro-organisms whereby a utility basin, controlled by way of distribution means, can be supplied with treated waste water from the reed bed area and/or from at least one other utility basin and at least one saline area for the reception of the residual water from the modular basin area for the evaporation of water and the concentration of salt, wherein the reed bed area has several parallel arranged reed bed segments, which are each formed of several reed bed basins that are arranged and flowed through in series, in that between the feeding duct and the reed bed area one settling area is provided for receiving the waste water and in which a flow speed of the waste water is reduced for separating oil proportions, in that the settling area has several settling basins according to the number of reed bed segments and in that on the settling area a distribution channel is provided for the supply and distribution of the waste water to the settling basins, in that for recovering residual oil in the settling area with the several settling basins surface skimmers are provided, with which oil can be sucked off from the surface and directed to collecting tanks.