Coal ash activation chemical synthesis technique, preparation of fast flocculant by applying the coal ash and use thereof

A technology of fly ash and activator, applied in the field of new flocculants and their preparation, can solve the problems of long treatment time, high price of flocculants, unclean and incomplete treatment, etc.

Inactive Publication Date: 2008-08-13
冯英昌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among them, inorganic flocculants are mainly aluminum and iron salts and polymer salts. The disadvantages of this type of flocculants are that they can only deal with a certain type of relatively simple water quality, and the treatment time is long, the amount is large, and the treatment process is complicated; the cost is relatively high. , the treatment is not clean a

Method used

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  • Coal ash activation chemical synthesis technique, preparation of fast flocculant by applying the coal ash and use thereof
  • Coal ash activation chemical synthesis technique, preparation of fast flocculant by applying the coal ash and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Preparation composition I

[0084] Materials and equipment

[0085] Fly ash is taken from the waste of coal combustion

[0086] Activated clay was purchased from Zhejiang Yuyao clay factory

[0087] Steel slag was taken from Baoshan Iron and Steel Company

[0088] Calcium carbonate was purchased from Qianshan Cement Factory

[0089] Calcium sulfate was purchased from Dengta Gypsum Plant

[0090] The composite silicate was purchased from Shanghai Xilong Chemical Co., Ltd.

[0091] Wave energy with steam heating reactor was purchased from German Norwalk Equipment Company

[0092] method

[0093] 1. Use wave energy to cooperate with steam reactor equipment. Through light wave and chemical activation technology, electromagnetic waves and ultrasonic waves are used to act on the surface of fly ash, and are kneaded and crushed under electromagnetic induction to make the inert fly ash that has lost its chemical activity become active Fly ash

[0094] 2. After crushing the steel sla...

Embodiment 2

[0101] Preparation composition II

[0102] Materials and equipment

[0103] Same as Example 1

[0104] method

[0105] 1. Use wave energy to cooperate with steam reactor equipment. Through light wave and chemical activation technology, electromagnetic waves and ultrasonic waves are used to act on the surface of fly ash, and are kneaded and crushed under electromagnetic induction to make the inert fly ash that has lost its chemical activity become active Fly ash

[0106] 2. After crushing the mine waste, sieving through 800-1200 mesh screen to obtain minerals with an average particle size of 5ppm;

[0107] 3. Mix the weight of each raw material in the following table:

[0108] Fly ash

Activated clay

Minerals

Calcium sulfate

Composite silicate

Weight (kg)

50

8

8

24

10

[0109] 4. Obtain composition II.

[0110] result

[0111] The specific surface area of ​​Composition II was 7980 cm2 / g, and the porosity was 97.7%.

Embodiment 3

[0113] Performance Testing

[0114] Take a cup of turbid sewage, add the composition I obtained in Example 1, and after tens of seconds, the sewage is completely clarified, and then perform an index test according to the test method in the "Shanghai Municipal Wastewater Discharge Standard". The results are shown in Table 1.

[0115] Table 1

[0116] Raw water

[0117] The results show that the composition I provided by the present invention can quickly clarify sewage.

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Abstract

The present invention provides a new technology, chemical synthesizing an activator by fly ash, and combining the activator to flocculating agent composite. The technology utilizes rejectamenta and applies in sewage disposal and soil improvement, having wide purposes, beneficial to circular economy. The technology effectively reduces turbidness of sewage in a moment to level and standard of tap water or discharging water, having no secondary pollution and beneficial to human body and environment. Mipor sphere structure and special synthetic technology of the combination provide larger specific area and larger void ratio in mud water system, having strong adhesive attraction and wetting resistance, and provides effectively multi-functional medium carrier, increasing contact surface of attached matter substantially. If matching special sewage desliming equipment, the mud and water are completely separated, the drying function makes mud to dry mud, used as fertilizer and backfill, utilizing source substantially.

Description

Technical field [0001] The invention relates to the field of water treatment, in particular to a novel flocculant and its preparation method and application. Background technique [0002] The World Health Organization survey pointed out that 80% of human diseases are related to water pollution. According to statistics, more than 25 million children in the world die from drinking contaminated water every year. At the end of March 2005, the Chinese government officially issued a warning about water pollution through China Daily. Government officials also stated for the first time that it is estimated that 360 million Chinese people lack safe drinking water. In addition, the government also admits that 70% of rivers and lakes in China are polluted. "Water pollution" has become the most important water environmental problem in China. [0003] Flocculation has become one of the important methods of modern water treatment, and it has been widely used in the treatment of surface water a...

Claims

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Application Information

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IPC IPC(8): C02F1/52
Inventor 冯英昌
Owner 冯英昌
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