wood granular activated carbon for air purification

Specifications

wood granular activated carbon:
1) used for water treatment,gas adsorption
2) directly factory

1.Production process

1.Choosing the wood chips or sawdust as raw material

2.Sieving the raw material from wood sawdust to be sure the material is without pollution 

3.Drying the sawdust in the Drying Equipment to control the moisture be around 10

4.Adding the food grade Phosphoric acid solution and catalyst to the dried sawdust to soak for 30 mins

5.Carbonized  the wood sawdust which is with phosphoric acid in the rotary under high temperature, during the activation, the carbon molecular structure is changing so that the hole space and the specific surface area will be bigger

6.Testing the semi product (testing the product every 30 minutes, and 48 times a day)

7.Acid washing( washing the phosphoric acid and impurities to be divided from the carbon

8.Water washing (3 times by boiling water, 2 times by cooling water

9.Testing the semi product (testing the product every 30 minutes, and 48 times a day)

10.Drying and crushing (water and particles control)

11.Packing the product.  

2. Advantage 

1. High methylene blue: 300mg/g

2. High adsorption of caramel: 140%

3. Low metal content: Fe content is lower than 200ppm 

Method	H3PO4
Methylene Blue	180mg/g
Caramel Decoloration	100%
Fe	700ppm
Ash	5%
PH	2.5-5
Chloride	0.10%
Sulfate	0.10%
Particles	8X30mesh
Moisture	10%
Quantity	4.5 tons(20'FCL)