Activated Carbon Filter (ACF) Sewage Water Treatment Plant
AAA:
01. What is the raw water? What is the flow rate do you require?
02. What will the be treated water used for?
03. What is the power supply in your counrty?
Sand And Dual Media Filters : removal due to the impurity's particle size. The filtration of suspended solids by occlusion removes particles based on size. Particles are occluded, or held back, due to their inability to pass through the pores of a barrier of some sort. The barrier might be a packed bed of sand, a fiber mat, or a membrane surface. Filtration by occlusion is often called "surface filtration", since it occurs on the surface of the filtering media. Sand and Multi-Media filters are some of the filters working on this principle.
Activated Carbon Filters: Reduction : removal of free residual chlorine through conversion to chloride ions in the presence of activated carbon media. Chlorine is often added to water as a treatment chemical (e.g., for disinfection), and some residual chlorine may remain in the water after the treatment is complete. Residual Chlorine is the total amount of free and combined chlorine that remains in water after a designated contact time. Free available residual chlorine is the chlorine that exists in the water as hypochlorous acid and hypochlorite ions. De-chlorination partially or completely reduces the residual chlorine by chemical means. Free residual chlorine is converted to chloride ions in the presence of activated carbon by the following reaction:
C |
+ |
2Cl2 |
+ |
2H2O |
--> |
4HCl |
+ |
CO2 |
| Activated Carbon |
|
Chlorine (free residual) |
|
Water |
|
Hydrochloric Acid |
|
Carbon Dioxide |
Activated carbon has a nearly unlimited capacity for chlorine removal due to its large surface area and the above reaction. Activated carbon is a special form of carbon that is produced by heating organic material (such as coconut shells, walnut shells or coal) in the absence of oxygen. The heat removes trapped moisture and gases and dry activate most of the remaining organic material; it also leaves the remaining material with a slightly positive surface charge.Sodium bisulfite (SBS) injection is also frequently employed for chlorine removal in some systems. These systems tend to have a much lower capital cost than the pressure vessel system that uses activated carbon. However, activated carbon filtration has the advantage of being a passive technology with no normal risk of "non-treatment". Removal of chlorine with SBS may create side effects on subsequent treatment units such as Reverse Osmosis and was found to encourage the growth of bacteria in some cases. On the opposite side, the removal of the chlorine using activated carbon did not show such a phenomenon.
Adsorption: removal due to the impurity's adherence to the media. Adsorption refers to the removal of an impurity from a liquid to the surface of a solid. A water-born, suspended particle adheres to a solid surface when adsorption occurs. Adsorption differs from occlusion in that occluded particles are removed from a process flow because they are too large to pass through a physical restriction in the media. In most cases, adsorbed particles are affected by weak chemical interactions that allow them to adhere to the surface of a solid.
Adsorbed particles become attached to the surface of a given media, becoming a weakly held part of the solid.One Example is activated carbon bed, which can remove minute suspended particles, colloidal particles and dissolved organics due to its ability to adsorb or electro-statically hold particles. These particles would pass between the grains of carbon if not for the weak electrostatic attraction between the positive surface charge of the carbon and the negative surface charge of the particles. Particles can also be trapped in the porous structure of the activated carbon where they are then weakly held. Note that an activated carbon filter is not very efficient at removing most organic compounds from water and is rarely used in this manner.
Technical parameters sheet for Mechanical actived carbon filter
| TPYE |
TANK SIZE
(mm) |
TOTAL HIGH
(mm) |
FLOW RATE
(m3/hr) |
INLET AND OUTLET
(mm) |
QUARTZ SAND
(t) |
| YLD-MF-500 |
500*1500 |
2350 |
2 |
DN32 |
0.39 |
| YLD-MF- 600 |
600*1500 |
2380 |
2-3 |
DN32 |
0.56 |
| YLD-MF- 700 |
700*1500 |
2400 |
4 |
DN40 |
0.76 |
| YLD-MF- 800 |
800*1500 |
2400 |
5 |
DN40 |
1 |
| YLD-MF- 900 |
900*1500 |
2500 |
6 |
DN50 |
1.3 |
| YLD-MF- 1000 |
1000*1500 |
2600 |
8 |
DN50 |
1.6 |
| YLD-MF- 1200 |
1200*1500 |
2700 |
11 |
DN65 |
2.3 |
| YLD-MF- 1400 |
1400*1500 |
2800 |
15 |
DN65 |
3 |
| YLD-MF- 1500 |
1500*1500 |
2850 |
18 |
DN65 |
3.5 |
| YLD-MF- 1600 |
1600*1500 |
2900 |
20 |
DN80 |
4 |
| YLD-MF- 1800 |
1800*1500
1800*1800 |
3000 |
25 |
DN80 |
5 |
| YLD-MF- 2000 |
2000*1500 |
3100 |
30 |
DN100 |
6 |
| YLD-MF- 2200 |
2200*1500 |
3180 |
38 |
DN100 |
7.5 |
| YLD-MF- 2400 |
2400*1500 |
3330 |
45 |
DN100 |
9 |
| YLD-MF- 2500 |
2500*1500 |
3380 |
50 |
DN100 |
9.7 |
| YLD-MF- 2600 |
2600*1500 |
3430 |
55 |
DN125 |
10 |
| YLD-MF- 2800 |
2800*1500 |
3530 |
60 |
DN125 |
12.5 |
| YLD-MF- 3000 |
3000*1500 |
3630 |
70-80 |
DN125 |
14 |
| YLD-MF- 3200 |
3200*1500 |
3730 |
80~100 |
DN150 |
16 |
Applications for sand filtration
Preparation of cooling water
Treatment of waste water
Production of drinking water
Filtration in swimming pools
Pre filtration for membrane systems
Filtration of gray or surface water
Swimming pool water
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