Novel low temperature synthesis of sodium silicate and ordered mesoporous silica from incineration bottom ash

Alam, Qadeer; Hendrix, Yuri; Thijs, L.C.; Lázaro, A.; Schollbach, Katrin; Brouwers, Hjh Jos

doi:10.1016/j.jclepro.2018.11.173

Cited by 71 publications

(23 citation statements)

References 38 publications

(37 reference statements)

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“…The predominant species in factor 3 included Na + (42 %), K (40 %), OC (35 %), and EC (33 %). K was often regarded as the fingerprint of biomass burning (BB) (Chen et al, 2017;Zheng et al, 2019), whereas the Na + was generally regarded as the tracer of waste incineration (Alam et al, 2019;Durlak et al, 1997). Hence, factor 3 was treated as the BB source.…”

Section: The Impact Of the Covid-19 Lockdown On Source Apportionmentmentioning

confidence: 99%

Substantial changes in gaseous pollutants and chemical compositions in fine particles in the North China Plain during the COVID-19 lockdown period: anthropogenic vs. meteorological influences

Zhao

et al. 2021

Atmos. Chem. Phys.

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Abstract. The rapid response to the COVID-19 pandemic led to unprecedented decreases in economic activities, thereby reducing the pollutant emissions. A random forest (RF) model was applied to determine the respective contributions of meteorology and anthropogenic emissions to the changes in air quality. The result suggested that the strict lockdown measures significantly decreased primary components such as Cr (−67 %) and Fe (−61 %) in PM2.5 (p<0.01), whereas the higher relative humidity (RH) and NH3 level and the lower air temperature (T) remarkably enhanced the production of secondary aerosol, including SO42- (29 %), NO3- (29 %), and NH4+ (21 %) (p<0.05). The positive matrix factorization (PMF) result suggested that the contribution ratios of secondary formation (SF), industrial process (IP), biomass burning (BB), coal combustion (CC), and road dust (RD) changed from 36 %, 27 %, 21 %, 12 %, and 4 % before the COVID-19 outbreak to 44 %, 20 %, 20 %, 9 %, and 7 %, respectively. The rapid increase in the contribution ratio derived from SF to PM2.5 implied that the intermittent haze events during the COVID-19 period were characterized by secondary aerosol pollution, which was mainly contributed by the unfavorable meteorological conditions and high NH3 level.

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Section: The Impact Of the Covid-19 Lockdown On Source Apportionmentmentioning

confidence: 99%

Substantial changes in gaseous pollutants and chemical compositions in fine particles in the North China Plain during the COVID-19 lockdown period: anthropogenic vs. meteorological influences

Zhao

et al. 2021

Atmos. Chem. Phys.

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“…Among these, BA accounts for more than 80 wt.% of all the generated residues [5]. Numerous studies have explored the application potential of these ashes as a secondary raw material for making ceramics, precipitated silica, and building materials [6][7][8][9]. However, the high content of potentially toxic elements (PTEs) and inorganic salts (chlorides and sulfates) often renders these ashes unusable for recycling.…”

Section: Introductionmentioning

confidence: 99%

The immobilization of potentially toxic elements due to incineration and weathering of bottom ash fines

Alam

Schollbach

Rijnders

et al. 2019

Journal of Hazardous Materials

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“…That being said, once the gel has been in contact with the whole cell culture a pretreatment to sterilize the cells could be required before waste production. Chemical recycling of silica is also possible; dissolution in alkaline solution would produce aqueous silicates, which can be reused. , …”

Section: Discussionmentioning

confidence: 99%

Utilizing Crude Waste Glycerol in the Biorefinery: Glycerol Gels for in Situ Substrate Delivery to Whole Cell Biocatalysts

Bothwell

Krasňan

Lorenzini

et al. 2019

ACS Sustainable Chem. Eng.

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Novel low temperature synthesis of sodium silicate and ordered mesoporous silica from incineration bottom ash

Cited by 71 publications

References 38 publications

Substantial changes in gaseous pollutants and chemical compositions in fine particles in the North China Plain during the COVID-19 lockdown period: anthropogenic vs. meteorological influences

Substantial changes in gaseous pollutants and chemical compositions in fine particles in the North China Plain during the COVID-19 lockdown period: anthropogenic vs. meteorological influences

The immobilization of potentially toxic elements due to incineration and weathering of bottom ash fines

Utilizing Crude Waste Glycerol in the Biorefinery: Glycerol Gels for in Situ Substrate Delivery to Whole Cell Biocatalysts

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