What are the characteristics of COD adsorption by shell activated carbon?

Activated carbon has a well-developed pore structure, and the adsorbed molecules enter the adsorption pores through the macropores (R 50nm) and mesopores (2nm R 50nm) through the two transportation channels Micropores (R 2nm), and the molecules and surface groups on the pore surface are combined together by van der Waals force to complete adsorption. Founded in 1996, Nanjing Mulinsen Carbon Industry Co., Ltd. is a professional activated carbon production enterprise integrating scientific research, development, production and sales. Over the past 20 years, the company has been focusing on the production of activated carbon, and has now developed into a subsidiary of Nanjing Mulinsen (deep processing base, mainly producing high-end products such as high-grade pure activated carbon and activated carbon catalysts), Hainan Mulinsen (Southeast Asia coconut shell raw material base, mainly producing coconut shell activated carbon), Gansu Mulinsen (Northwest coconut...).

In the test of activated carbon for adsorbing COD, we summarized the following characteristics: The adsorption capacity of COD is generally very different with the raw materials of the activated carbon of the husk, for example, the activated carbon made of walnut shell is much better than the activated carbon made of other fruits, and the adsorption performance of adsorption of COD is much better. However, it is more difficult for us to judge the type of raw material of the activated carbon in the husk, we can only judge from the shape of the activated carbon, and the specific surface area is also an important factor affecting the adsorption of COD, and there is a positive proportional relationship between them.

If the specific surface area is large, the adsorption capacity will be large, and if the specific surface area is small, it will be the opposite. There is a consensus in the research of many scholars, that is, the ability of activated carbon to adsorb COD and its own pore size distribution are the most important, but they are currently in the experimental stage, which can only be said to be a consensus, not a conclusion. In order to more accurately grasp the characteristics of COD adsorption by shell activated carbon, it is necessary to do more relevant tests, communicate with experts, and select the shell activated carbon suitable for adsorption of COD according to experience.

Is the COD of activated carbon out pure or granular.

Acetic acid Sodium acetate buffer ( take sodium acetate, add 50ml of water to dissolve, adjust the pH value with glacial acetic acid, and then add water to dilute to 100ml.

Acetic acid sodium acetate buffer (take sodium acetate, add 1mol l acetic acid solution 20ml to dissolve, and dilute to 500ml with water.

Acetic acid potassium acetate buffer (take 14g of potassium acetate, add glacial acetic acid, and then dilute to 1000ml with water.

Acetate Ammonium acetate buffer (take ammonium acetate, add 50ml of water to dissolve, and add 6ml of glacial acetic acid and an appropriate amount of water to make 100ml.

Ammonium acetate buffer (take 100g of ammonium acetate, add 300ml of water to dissolve, add 7ml of glacial acetic acid, shake well, and obtain.)

Acetate Sodium acetate.

Buffer. Take sodium acetate, add 50ml of water to dissolve pure Qi, use.

Glacial acetic acid. Adjust the pH value to 100ml and dilute it to 100ml with water.

Acetic acid Acetate sodium acetate buffer (

Take sodium acetate, add 1mol l acetic acid solution 20ml to dissolve, add water to dilute to 500ml, that is.

Acetic acid Potassium acetate.

Buffer (take 14g of potassium acetate, add glacial acetic acid, and then add water to dilute to 1000ml.

Acetate Ammonium acetate.

Buffer (take ammonium acetate, add 50ml of water to dissolve, add 6ml of glacial acetic acid and an appropriate amount of water to make 100ml, that is.

Ammonium acetate acetate is used as a buffer (

Take 100g of ammonium acetate, add 300ml of water to dissolve, add 7ml of glacial acetic acid, shake well, and obtain.