METHOD AND THE INSTALLATION USED FOR PURIFICATION AND FILTRATION OF THE LIQUID WASTE DRAINS CONTAINING IN PARTICULAR SUSPENDED CONTAMINANTS Russian patent published in 2007 - IPC C02F9/02 

FIELD: environmental protection; methods and the devices used for purification and filtration of the liquid drains containing the suspended contaminants.

SUBSTANCE: the invention is pertaining to the field of environmental protection, in particular, to the method and the installation used for purification and refiner and filtration of the liquid mediums, namely the liquid waste drains provides for application of the means of the gravity separation and also the means of the membrane separation applied at the stage of the final purification. At that before usage of the device, of the gravity separation they introduce the first powdery adsorbing reactant into the being purified stream and before usage of the membrane separation device they introduce the second powdery adsorbing reactant. The coagulant necessary for realization of the separation process is introduced before introduction of the first powdery adsorbing reactant, and the indicated second powdery adsorbing reactant returned in the cycle feeding it from the outlet of the means of the membrane separation to the inlet of the means of the gravitational separation. The indicated first and second powdery adsorbing reactants have the different characteristics, namely - the different granulometric composition and the adsorption capacity corresponding to the characteristics of those contaminants, which should be removed. The technical result of invention is the increased effectiveness and productivity of the process of purification of the liquid waste drains.

EFFECT: the invention ensures the increased effectiveness and productivity of the process of purification of the liquid waste drains.

9 cl, 2 dwg, 2 tbl