Iron-loaded activated carbon capable of synchronously and efficiently removing As (III) and Cr (VI) in water, and preparation method and application thereof
A technology for iron-loaded activated carbon and water removal, applied in chemical instruments and methods, water pollutants, and other chemical processes, etc., can solve problems such as blockage of pipelines or equipment in structures, large head loss, and difficulty in solid-liquid separation, and achieve carbon loss. The effect of small rate, optimized adsorption efficiency and low cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] (1) Select the activated carbon whose purity is analytically pure, the particle size is about 200 mesh, the iodine value is 1000mg / g; the methylene blue value is 120mg / g; the particle size exceeds 200 mesh, accounting for 90%; the moisture content is 10%, and the ash content is 9%. pink. Clean the activated carbon powder with ultra-pure water for more than 3 times at room temperature, fully stir and soak during the cleaning process to reduce its alkalinity, remove the ash and impurities on the surface of the activated carbon powder, and place the cleaned activated carbon powder in a vacuum at 60°C after filtering Dry it in a drying oven for 10 hours, and record the sample PAC after grinding as the first sample, and set it aside;
[0025] (2) At room temperature, take about 10 g of activated carbon powder PAC obtained in step (1), use dilute nitric acid with a concentration of 0.1 mol / L and a pH of about 1, and fully impregnate it for 24 hours under the condition of unif...
Embodiment 2
[0030] (1) Select the activated carbon whose purity is analytically pure, the particle size is about 200 mesh, the iodine value is 1000mg / g; the methylene blue value is 120mg / g; the particle size exceeds 200 mesh, accounting for 90%; the moisture content is 10%, and the ash content is 9%. pink. Clean the activated carbon powder with ultra-pure water for more than 3 times at room temperature, fully stir and soak during the cleaning process to reduce its alkalinity, remove the ash and impurities on the surface of the activated carbon powder, and place the cleaned activated carbon powder in a vacuum at 60°C after filtering Dry it in a drying oven for 10 hours, and record the sample PAC after grinding as the first sample, and set it aside;
[0031] (2) Under normal temperature, get about 10g of activated carbon powder PAC obtained in the step (1), with a concentration of 0.1mol / L, a dilute nitric acid with a pH of about 1, fully impregnated for 24h under 100r / min mechanical unifor...
Embodiment 3
[0036] (1) Select the activated carbon whose purity is analytically pure, the particle size is about 200 mesh, the iodine value is 1000mg / g; the methylene blue value is 120mg / g; the particle size exceeds 200 mesh, accounting for 90%; the moisture content is 10%, and the ash content is 9%. pink. Clean the activated carbon powder with ultra-pure water for more than 3 times at room temperature, fully stir and soak during the cleaning process to reduce its alkalinity, remove the ash and impurities on the surface of the activated carbon powder, and place the cleaned activated carbon powder in a vacuum at 60°C after filtering Dry it in a drying oven for 10 hours, and record the sample PAC after grinding as the first sample, and set it aside;
[0037] (2) At room temperature, take about 10 g of activated carbon powder PAC obtained in step (1), use dilute nitric acid with a concentration of 0.1 mol / L and a pH of about 1, and fully impregnate it for 24 hours under the condition of unif...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Particle size | aaaaa | aaaaa |
| Methylene blue value | aaaaa | aaaaa |
| Iodine value | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More