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Product details
In addition to iron and manganese filter
1、 Product Features
The iron and manganese removal filter is mainly used to remove iron and manganese substances in the system and purify water quality; It can also be used for decolorization and deodorization of water.
2、 Scope of application
Used for food, beverage, papermaking, brewing industry, treatment of water with excessive iron content, removal of iron from groundwater and well water as drinking water, geothermal engineering, and circulating water in swimming pools.
3、 Product Features
1. The unique multi filter chamber structure enables online backwashing (simultaneous filtration, sewage discharge, and backwashing).
2. Energy saving: The effluent is directly supplied to the pipeline network without the need for a secondary water supply system; It has its own backwash function and does not require a separate backwash water pump.
3. Water saving: This equipment adopts a "plum blossom water distributor" to shorten the distance between the filter layer and the water distribution pipe, which can save a lot of backwash water.
4、 Technical parameters
1．Processing effect:
①. Iron content: ≤ 0.3mg/L；
②. Manganese content: ≤ 0.1mg/L；
③. Turbidity of effluent:< 3FTU.
2Water inlet requirements:
①. Iron content: ≤ 20mg/L；
②. Manganese content: ≤ 3mg/L；
③. Inlet turbidity:< 20FTU；
④. Alkalinity: ≤ 2mg/L；
⑤ PH value:>6.0 (for iron removal),>7.5 (for manganese removal).
3Work environment parameters
①. Working temperature: 5-60 ℃ (special temperature can be customized);
②. Work pressure: ≤ 0.6MPa.
4Operating parameters
①. Working mode: pressure based;
②. Operation mode: Water flow from top to bottom, in series (high iron and manganese content) or parallel;
③. Filtration speed: 6-10m/h (for iron removal), 5-8m/h (for manganese removal);
④. Operating cycle: Depending on the quality of the raw water, the minimum duration should not be less than 8 hours;
⑤. Backwashing method: water washing, or a combination of air and water backwashing;
⑥. Backwash time: 10-15 minutes;
⑦. Backwash water consumption: 1-3%;
⑧. Backwash strength: 15-20L/s · m2
5、 Working principle
The iron and manganese removal filter consists of an aeration device and a manganese sand filtration tank; Using oxidation method to oxidize low valent iron ions and low valent manganese ions in water into high valent iron ions and high valent manganese ions, and then removing them through adsorption filtration to reduce the iron and manganese content in water.
1Process flow
Aeration → Contact oxidation → Adsorption filtration → Backwashing
2Running process
①.aeration process
According to the water quality, deep well water residual pressure jet aeration or compressed air aeration methods are used, and the pipeline is mixed with dissolved oxygen for stability and reliability. On the one hand, aeration method increases the dissolved oxygen in water; The second is to eliminate CO2To increase the pH value of water, divalent iron is oxidized to trivalent iron precipitate, and then filtered.
②. contact oxidation
The filter material adopts natural manganese sand filter material, which has a dual layer effect of catalysis and filtration.
The main component of natural manganese sand is manganese dioxide (Mno)2）It is made of Fe2+Oxidation to Fe3＋A good catalyst.
When the pH value of iron containing groundwater is greater than 5.5, contact with natural manganese sand can remove Fe3＋Oxidation to Fe3＋The reaction is as follows:
a. 4MnO2+3O2=2Mn2O7b. Mn2O7+6Fe2++3H2O=2MnO2+6Fe3++6OH-
Generated Fe3+Immediately hydrolyzed into flocculent iron hydroxide precipitate: Fe3++3OH-=Fe(OH)3↓
③. adsorption filtration
a. Remove Fe through manganese sand filter layer3＋The formed floc (Fe (OH))3Sediment);
b. Remove most of the unoxidized Fe2+Catalytic oxidation and ion exchange of hydroxyl oxidation for iron removal.
The mechanism of removing iron from manganese sand relies not only on its own catalytic effect, but also on the gradual formation of a layer of iron filter membrane on the surface of the manganese sand filter material during filtration as an active filter membrane, which can play a catalytic role. The newly generated hydroxylated iron oxide serves as the active filter membrane material and participates in the new catalytic iron removal process, so the iron removal process by the active filter membrane is an automatic catalytic process.
The removal principle of manganese is the same as the removal method of divalent iron.
④. Backwash
The system can be controlled manually or automatically. Regular backwashing of manganese sand is required to remove suspended solids and other impurities that may be intercepted, while loosening the manganese sand and cushion layer. Due to the presence of a backwash device inside the filter, there is no need to equip a backwash water pump.
6、 Specifications, models, and external dimensions
1Outline dimension diagram
2List of Specifications and Models
List of Specifications and Models for Iron and Manganese Removal Filters
| Model |
Tank size φ×H （mm） |
Handling traffic （m3/h） |
interface size（mm） | |||
|
Filter the incoming water Backwash water |
Filter out the water Backwash water inflow |
Washing with water Washing drainage |
exhaust port | |||
| JD-CTM400 | φ400×2580 | ～1 | DN32 | DN32 | DN32 | 15 |
| JD-CTM600 | φ600×2730 | ～3 | DN50 | DN50 | DN50 | 25 |
| JD-CTM800 | φ800×2830 | ～4 | DN50 | DN50 | DN50 | 25 |
| JD-CTM1000 | φ1000×3000 | ～6 | DN50 | DN50 | DN50 | 25 |
| JD-CTM1200 | φ1200×3150 | ～9 | DN50 | DN50 | DN50 | 25 |
| JD-CTM1400 | φ1400×3250 | ～12 | DN65 | DN65 | DN65 | 25 |
| JD-CTM1500 | φ1500×3400 | ～14 | DN80 | DN80 | DN80 | 32 |
| JD-CTM1600 | φ1600×3450 | ～16 | DN80 | DN80 | DN80 | 32 |
| JD-CTM1800 | φ1800×3580 | ～20 | DN100 | DN100 | DN100 | 32 |
| JD-CTM2000 | φ2000×3650 | ～25 | DN100 | DN100 | DN100 | 32 |
| JD-CTM2200 | φ2200×3880 | ～30 | DN125 | DN125 | DN125 | 32 |
| JD-CTM2400 | φ2400×4000 | ～36 | DN125 | DN125 | DN125 | 40 |
| JD-CTM2500 | φ2500×4150 | ～40 | DN150 | DN150 | DN150 | 40 |
| JD-CTM2600 | φ2600×4200 | ～42.5 | DN150 | DN150 | DN150 | 40 |
| JD-CTM2800 | φ2800×4400 | ～49 | DN200 | DN200 | DN200 | 40 |
| JD-CTM3000 | φ3000×4500 | ～56 | DN200 | DN200 | DN200 | 40 |
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