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Research Article
Wen-Jun Liang
Beijing University of Technology
Corresponding Author
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In order to reduce the dust pollution caused by the coal mining process, an environmental dust suppressant was synthesized by corn straw, sodium carboxymethyl cellulose (CMC) and additives. This study focused on the preparation conditions of this dust suppressant and the viscosity, surface tension, hardness, sedimentation time, contact angle, wind erosion resistance, and water retention capacity of the dust suppressant were investigated systematically. Response surface method was used to optimize the raw material formulation and preparation parameters. The optimum mass ratio of straw, CMC and alkali of the dust suppression was 65:20:15 (m/m), which was prepared under the conditions of the reaction time being 1.5 h, and the rotation speed being 300 r/min. The surface tension decreased from 72 mN/m to less than 50 mN/m with the addition of the additives. The prepared dust suppressant has a maximum viscosity of 363.6 mPa·s, the compressive strength could be up to 200 kPa. The wind erosion resistance of dust suppressant was significant, which could be up to 99 % at the wind speed of 14 m/s for 6 h. After spraying the dust suppressant, the gap between particles was filled with dust suppressant, and the adjacent particles were bound by strong mechanical action.
Keywords
Dust suppressant, Straw, Agricultural waste, Environmental friendly
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CURRENT STATUS: Published
View the published article at Environmental Science and Pollution Research.
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Posted 29 Mar, 2021
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Reviews received
Received 15 Apr, 2021
Reviewers invited
Invitations sent on 24 Mar, 2021
Editor assigned
On 23 Feb, 2021
First submitted
On 17 Feb, 2021
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Environmental Engineering
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A new preprint design is coming!
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See the published version of this preprint at Environmental Science and Pollution Research.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Wen-Jun Liang
Beijing University of Technology
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at Environmental Science and Pollution Research.
Version 1
Posted 29 Mar, 2021
No community comments so far
Reviews received
Received 15 Apr, 2021
Reviewers invited
Invitations sent on 24 Mar, 2021
Editor assigned
On 23 Feb, 2021
First submitted
On 17 Feb, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Environmental Engineering
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at Environmental Science and Pollution Research.
In order to reduce the dust pollution caused by the coal mining process, an environmental dust suppressant was synthesized by corn straw, sodium carboxymethyl cellulose (CMC) and additives. This study focused on the preparation conditions of this dust suppressant and the viscosity, surface tension, hardness, sedimentation time, contact angle, wind erosion resistance, and water retention capacity of the dust suppressant were investigated systematically. Response surface method was used to optimize the raw material formulation and preparation parameters. The optimum mass ratio of straw, CMC and alkali of the dust suppression was 65:20:15 (m/m), which was prepared under the conditions of the reaction time being 1.5 h, and the rotation speed being 300 r/min. The surface tension decreased from 72 mN/m to less than 50 mN/m with the addition of the additives. The prepared dust suppressant has a maximum viscosity of 363.6 mPa·s, the compressive strength could be up to 200 kPa. The wind erosion resistance of dust suppressant was significant, which could be up to 99 % at the wind speed of 14 m/s for 6 h. After spraying the dust suppressant, the gap between particles was filled with dust suppressant, and the adjacent particles were bound by strong mechanical action.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
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