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A preparation method of carbonized adsorption particles for water body purification

A technology for adsorbing particles and purifying water, which is applied to chemical instruments and methods, adsorbed water/sewage treatment, and other chemical processes. It can solve the problems of affecting the operating life of constructed wetlands, small adsorption capacity, and heavy quality, and promote microbial decomposition. Pollutants, Cost Reduction, and Efficiency Improvement Effects

Inactive Publication Date: 2011-12-07
NORTHEAST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These substrates are mainly composed of inorganic materials, which are heavy in weight and small in adsorption capacity, which can easily cause blockage of constructed wetlands, seriously affect the operating life of constructed wetlands, and limit the popularization and use of constructed wetlands.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The peat is crushed to a particle diameter of ≤0.5cm, the vermiculite is crushed to a particle diameter of ≤2mm, the solidified material is diatomite, and the volume ratio is peat: vermiculite: diatomite=70%: 10%: 20%. Ratio, under the condition of keeping the water content of the material at 20%, it is fully mixed by a mixer, and then prepared into spherical particles with a diameter of 0.5cm by a granulator. Finally, it is cooled out of the furnace to form ups and downs of adsorption particles.

Embodiment 2

[0029] Sawdust is crushed to a particle diameter≤0.5cm, and slag is crushed to a particle diameter≤2mm. The solidified material is kaolin, and then the volume ratio is wood chips: slag; kaolin=10%: 70%: 20% for proportioning. Fully mixed with a mixer under the condition of 30%, and then prepared into columnar particles with a diameter of 1cm by a granulator. After air-drying in a natural state, put it into a carbonization furnace for 90 minutes at 200°C, and then take it out of the furnace and cool it to form a floating type. Adsorbs particles.

Embodiment 3

[0031] The straw is crushed to a particle diameter≤0.5cm, the fly ash is crushed to a particle diameter≤2mm, and the solidified material is cement, and then the proportion is straw: fly ash: cement=40%: 40%: 20% by volume, Under the condition that the moisture content of the material is 40%, it is fully mixed by a mixer, and then it is prepared into block-shaped particles with a diameter of 2cm by a granulator. After air-drying in a natural state, it is placed in a carbonization furnace for 30 minutes at 400 ° C, and then it is released from the oven. Cool to form suspended adsorption particles.

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Abstract

The invention relates to the technical field of water treatment, in particular to a method for preparing carbonizing absorption grains used for purifying water. The method comprises the following steps: preparing organic materials, such as peat, sawdust, straw, bamboo dregs, and the like, and inorganic materials, such as diatomite, vermiculite, perlite, cement, and the like, according to proportion; and then mixing the organic materials and the inorganic materials with diatomite, kaolin, cement, slaked lime and the like; and adopting a high-temperature carbonizing process for forming the grains which are porous, high in absorption property, and different in sizes and shapes. The prepared grains are used for purifying polluted water.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a preparation method of carbonized adsorption particles for water body purification. Background technique [0002] With the rapid development of industry and agriculture and the acceleration of urbanization, the discharge of industrial wastewater and domestic sewage is increasing, making the problem of water environmental pollution increasingly serious. Therefore, the purification of polluted water has become a major issue that is related to the national economy and people's livelihood. Governments at all levels pay more and more attention to environmental protection and invest hundreds of billions in sewage treatment and water purification every year. However, the current sewage treatment capacity, technical level and related product development are still far from meeting the needs of actual sewage treatment and purification. [0003] There are a wide variety of technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28
Inventor 王忠强何春光孟宪民盛连喜王升忠
Owner NORTHEAST NORMAL UNIVERSITY
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