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Modified activated carbon compound adsorption treatment material for wastewater treatment

A technology of wastewater treatment and composite adsorption, which is applied in water/sewage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problem that activated carbon is expensive, restricts the application of activated carbon, and reduces the treatment effect. problems, to achieve the effect of reducing wastewater treatment costs, expanding applications, and reducing costs

Inactive Publication Date: 2016-07-20
SUZHOU YUNSHU NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, activated carbon is expensive, and the efficiency of wastewater treatment needs to be improved; the existing activated carbon adsorbents are not very effective in reducing SS, BOD, etc. in wastewater. These reasons limit the use of activated carbon in wastewater treatment to a certain extent. application

Method used

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  • Modified activated carbon compound adsorption treatment material for wastewater treatment

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Embodiment 1

[0018] Embodiment 1: A modified activated carbon composite adsorption treatment material for wastewater treatment, comprising the following raw materials: modified activated carbon, particle expanded graphite, glass microspheres, hollow brick particles and composite flocculation aids; the mass percentage of the raw materials is: 40% modified activated carbon, 20% granular expanded graphite, 7% glass beads, 10% hollow brick particles, and 23% composite flocculation aids;

[0019] The preparation method of the modified activated carbon: 1) pretreatment: take a certain amount of ordinary coal-based activated carbon, and crush it to a particle size of 0.5-5mm; 2) acid leaching treatment: put the activated carbon particles obtained in step 1 in a container, add a concentration It is 10% HCl solution, the solid-to-liquid ratio is 4:1, impregnated at room temperature for 2.5h, washed with water after impregnated and dried at a constant temperature of 120°C for 45min; Add 8% NaOH solu...

Embodiment 2

[0021] Example 2: A modified activated carbon composite adsorption treatment material for wastewater treatment, including the following raw materials in mass percentage: 30% modified activated carbon, 25% particle expanded graphite, 10% glass beads, 15% hollow brick particles, composite flocculation Auxiliary agent 20%; The preparation method of described modified activated carbon, its concrete steps are with embodiment 1.

[0022] Further, the particle size of the particle expanded graphite is 0.05~0.5mm; the particle size of the hollow brick particle is 0.1~2mm; the composite flocculation aid is cationic polyacrylamide and polyepichlorohydrin, and its mass part ratio is 1:1.

Embodiment 3

[0023] Example 3: A modified activated carbon composite adsorption treatment material for wastewater treatment, including the following raw materials in mass percentage: 50% modified activated carbon, 10% particle expanded graphite, 5% glass beads, 5% hollow brick particles, composite flocculation Auxiliary agent 30%; The preparation method of described modified activated carbon, its concrete steps are with embodiment 1.

[0024] Further, the particle size of the particle expanded graphite is 0.05~0.5mm; the particle size of the hollow brick particle is 0.1~2mm; the composite flocculation aid is cationic polyacrylamide and polyepichlorohydrin, and its mass part ratio is 3:1.

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Abstract

The invention discloses a modified activated carbon compound adsorption treatment material for wastewater treatment. The material comprises the following raw materials in mass percent: 30 to 50 percent of modified activated carbon, 10 to 25 percent of granular expanded graphite, 5 to 10 percent of glass beads, 5 to 15 percent of hollow brick particles, and 15 to 35 percent of a composite flocculant aid. According to the compound adsorption treatment material, modified activated carbon is adopted for being compounded with the granular expanded graphite, the glass beads, the hollow brick particles and the composite flocculant aid according to reasonable mass ratio, so that heavy metal ions and organic and inorganic pollutants in raw water can be effectively removed and the contents of COD, SS, BOD and sulfide in the raw water can be reduced; the raw materials adopted are nontoxic, have chemical inertness, and cannot cause secondary pollution in water; the raw materials adopted can be reused after regeneration treatment, so that the wastewater treatment cost is greatly reduced, and the material is beneficial to the development of the application of activated carbon to the wastewater treatment industry.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment materials, in particular to a modified activated carbon composite adsorption treatment material for wastewater treatment. Background technique [0002] At present, in the advanced treatment of drinking water and industrial sewage recycling projects, we often encounter problems such as how to remove heavy metal ions and organic and inorganic pollutants in raw water economically, simply and effectively, and reduce COD and odor in raw water. Activated carbon is one of the commonly used adsorbents for water treatment by adsorption method, which has a well-developed pore structure and a huge surface area. With strong physical adsorption and chemical adsorption functions, the activated carbon adsorbent uses its huge surface area to adsorb the pollutants in the micropores of the activated carbon, and has a good effect on heavy metals such as chromium and mercury, as well as organic substance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20C02F1/28C02F1/56C02F101/20C02F101/30C02F101/10
CPCB01J20/10B01J20/20C02F1/281C02F1/56C02F2101/10C02F2101/20C02F2101/30
Inventor 戴晓宸
Owner SUZHOU YUNSHU NEW MATERIAL TECH
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