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Preparations and application of dust suppressants from biomass-based materials

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Abstract
Both natural and anthropogenic fugitive dust can cause serious hazards to the environment and human health. In this study, the development of biodegradable dust suppressants and their environmental impacts were evaluated. Biodegradable dust suppressants were prepared using various biomass-based polymeric materials such as crude glycerol (a by-product of biodiesel manufacturing), biodiesel, palm oil, cooking oil, seaweed mixtures, wakame (Undaria pinnatifida), and red algae. The results of wind-tunnel tests with Korean standard sand demonstrated that spraying diluted mixtures of crude glycerol and biomass materials can significantly reduce the generation of dust. The optimal molar mixing ratio of crude glycerol and the biomass materials was 1:1, and the optimal dilution concentration was determined to be 100 times for the mixture of crude glycerol and biodiesel, palm oil, and cooking oil and 50 times for the mixture of crude glycerol with a seaweed mixture, wakame, and red algae. The suppression ability was 83.4%, 60.4%, 99.5%, and 98.1% for the mixtures of glycerol with soybean oil, palm oil, wakame, and red algae, respectively. The mixtures of glycerol plus wakame or red algae were the most efficient suppressants; they also have substantial biodegradability. Our results suggest that the mixture of crude glycerol with the various oils or the seaweeds may be a promising option to develop nontoxic biodegradable dust suppressants. Implications: Since the early 2010s, anthropogenic fugitive dust from industrial activities has become a serious environmental issue due to its serious hazards to the environment and human health in South Korea. The origin and responsibility of the dusts is still disputable to prepare appropriate actions to take, which could be solved by scientific collaboration with surrounding countries. Regardless, domestic efforts to reduce the generation of fine dust from various sources should also be made. So far, several dust suppressants (mostly salts) were made and used for field application. However, due to their toxic effects, it is necessary to develop a new eco-friendly suppressant that can be biodegraded in the soil and that is not hazardous to human health or the environment. In this study, we try to develop an eco-friendly dust suppressant with low toxicity, to evaluate various potential dust suppressants, and to propose promising candidate products for commercialization and mass production. Ingredients and by-products of biodiesel production, marine biomass, and commercial vegetable oils were selected for the synthesis of suppressants. The optimal mixing ratio was determined, and the suppression ability was evaluated via wind tunnel tests. Considering biodegradability, the most effective suppressants were determined.
Author(s)
척트 바이가르오석영
Issued Date
2021
Type
Article
Keyword
Dust suppressantGlycerolBiodieselPalm oilSeaweedsBiodegradability
DOI
10.1080/10962247.2021.1942320
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9272
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_informaworld_taylorfrancis_310_1080_10962247_2021_1942320&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Preparations%20and%20application%20of%20dust%20suppressants%20from%20biomass-based%20materials&offset=0&pcAvailability=true
Publisher
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
Location
미국
Language
영어
ISSN
1096-2247
Citation Volume
71
Citation Number
11
Citation Start Page
1386
Citation End Page
1396
Appears in Collections:
Engineering > Civil and Environmental Engineering
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