(KR99068372-A)   NOVELTY - Organism and an oxidation filtration equipment having a contact filtration part where a filter medium which filters the suspended matter of in water and provides a proliferation environment of a microorganisms group is stored, and a microorganisms group is made to contact by introducing water to the upward side of this filter medium, while filtering water, is new.    USE - Used as filtration equipment which can be used for pretreatment, post-processing or sewage and waste water treatment in a water works.    ADVANTAGE - Since the proliferation environment of a microorganisms group can be preserved by the aeration function when dissolved oxygen is increased, the organism contact effect is improved. Since abundant air and/or oxygen are made to contact raw water, the heavy metal which is the inhibition component of the proliferation environment of a microorganisms group can be treated by oxidation. It is possible to adjust a structure and filtration rate of a filter medium for the objective of water purification. It is possible to heighten the processing effect according to the objective of water purification.    DETAILED DESCRIPTION - Organism and an oxidation filtration equipment has:    (a) a contact filtration part where a filter medium which filters the suspended matter of in water and provides a proliferation environment of a microorganisms group is stored, and a microorganisms group is made to contact by introducing water to the upward side of this filter medium, while filtering water;    (b) a catchment means which catches the filtration clean water which passes through this filter medium and flows out while supporting the filter medium in this contact filtration part;    (c) a filtration water-purifying flowing means to flow out the water caught in this catchment means to the outside; and    (d) an oxidation treatment air supply installation which supplies oxidation air between the filter mediums and catchment means in order to make oxidation air contact the water which passes through the filter medium at the same time increasing the amount of dissolved oxygen for maintaining the proliferation environment of the microorganisms group propagated in the filter medium.    DESCRIPTION OF DRAWING(S) - Figure 1 is a sectional drawing which shows the whole organism and oxidation filtration-equipment structure.    Raw-water inflow part (10)    Raw-water inflow part (11)    Raw-water inflow weir (14)    Organism contact filtration part (20)    Filter medium (21, 22)    Catchment chamber (23)    Catchment block (24)    Flow trough (25)    Drainage channel (26)    Drainage channel (29)    Filtration water-purifying flow part (30)    Filtration water-purifying outflow pipe (34)    Outflow weir (37)    Oxidation treatment air supply installation (40)    Oxidation air blower (41)    Air reverse washing installation (50)    Water reverse washing installation (60).