Harbin iron and manganese removal equipment

　　Product features

　　• aeration section: no need of aeration pool and tower, and no need of adding agents and catalyst, only little air filled, which can reduce the run cost.

　　• the main section of equipment is to make the strong oxidation reaction, sand removal and separation device, group suspended filter pond and so on together, the structure is unique.

　　• filter pond section: because the internal filter pond has no self-backwash device, no need of backwash water pump and water pool, which can reduce the working area, and project investment.

　　• the backwash strength of pressure filter pond is strong, which can flush the filter layer uniformly, completely, there is no dead corner, the backwash time is short, and the filtration cycle is long , wich can prolong the service life of filter material.

　　• this water treatment equipment can provide the users’ pipe network with water directly, no need of clear water pool and secondary stage pump station, which can reduce the equipment investment, avoid secondary pollution.

　　Technical performances

　　• mixture time of gas and water: 3-5min ;

　　• filter speed of filter pond: 10-14m/h ;

　　• backwash strength: 16-18L/m 2 .s ;

　　• thickness of filter layer: 1.0-1.2m ;

　　• inlet pressure≥ 0.06Mpa ;

　　• maximum pressure of equipment: 0.06-0.3 Mpa , 0.3-0.6 Mpa , 0.6-1.0 Mpa

　　Suitable applications

　　• feedwater Fe 2+ ≤ 20mg/L , Mn 2+ ≤ 10mg/L

　　• output water Fe 2+ ≤ 0.3 mg/L , Mn 2+ ≤ 0.1 mg/L

　　Purposes and principle

　　p LTLD series underground water iron and manganese removal filter are suitable for underground water iron and manganese removal in high-iron and high-manganese area, the pretreatment of industrial softened water, desalinized water equipment. This equipment has adopted the principles of aeration oxidation, manganese catalysis, adsorption, filtration. Take use of aeration device to make the oxygen in the air dissolve in water, and then make the oxidation of divalent Fe and Mn become the anti-soluble trivalent Fe and MnO2, in addition to the catalysis, adsorption and filtration of natural manganese, which can remove the iron and manganese ions. There are the following oxidation reaction of iron and manganese: iron oxidation: air: 4Fe2++3O2+6H2O=4Fe(OH)3 manganese MnOMn2O7+4Fe2++2O2+6H 2O=3MnO2 +4Fe(OH)3 ; manganese oxidation: Mn2++O2=MnO2, manganese Mn2++MnO2·H2O= MnO2·MnOH2O+2H+