Possible applications for municipal solid waste fly ash

Dias-Ferreira, Célia; Ribeiro, Alexandra B.; Ottosen, Lisbeth M.

doi:10.1016/s0304-3894(02)00201-7

Cited by 396 publications

(188 citation statements)

References 33 publications

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“…Several valorization options for fly ash and APC residue have been identified in the last two decades, namely cement and concrete production, road pavement, glass and glass ceramics, agriculture, stabilizing agent, adsorbent and zeolite production [7,35]. When assessing these options, the levels of heavy metals and soluble salts have been considered, whereas PCDD/PCDF content has barely been discussed.…”

Section: Impact Of Pcdd/pcdf Concentration On the Valorization Of Flymentioning

confidence: 99%

“…Several potential uses for these residues have been envisaged in the last decades [7], in line with the circular economy and resource efficiency strategies in place in the European Union. Under this framework, several researchers have reported on the electrodialytic (ED) treatment of fly ash and APC residue at laboratory and pilot scale, targeting the successful removal of heavy metals and soluble salts and the valorization of these wastes [8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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The influence of electrodialytic remediation on dioxin (PCDD/PCDF) levels in fly ash and air pollution control residues

2016

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Section: Impact Of Pcdd/pcdf Concentration On the Valorization Of Flymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of electrodialytic remediation on dioxin (PCDD/PCDF) levels in fly ash and air pollution control residues

2016

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“…Ashes generated by burning coal and sewage sludge have been used as soil amendment. Possible applications for municipal solid waste bottom and fly ashes are tested in construction materials (cement and ceramic), geotechnical applications (road pavement and embankments) and agriculture (soil amendment) [13,14,[16][17][18][19][20]. Industrial solid wastes are very difficult to analyze, because their composition is unpredictable, highly variable, and heterogeneous [21,22].…”

Section: Introductionmentioning

confidence: 99%

An ultrasound-assisted digestion method for the determination of toxic element concentrations in ash samples by inductively coupled plasma optical emission spectrometry

Ilander¹,

Väisänen²

2007

Analytica Chimica Acta

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A method of ultrasound-assisted digestion followed by inductively coupled plasma optical emission spectrometry (ICP-OES) used for the determination of toxic element concentrations (arsenic, barium, cobalt, copper, lead, nickel, strontium, vanadium and zinc) in ash samples was developed. All the measurements were performed in robust plasma conditions which were tested by measuring the Mg II 280.270 nm / Mg I 285.213 nm line intensity ratios. The highest line intensity ratios were observed when a nebulizer gas flow of 0.6 L min -1 , auxiliary gas flow of 0.2 L min -1 and plasma power of 1400 W were used for radially viewed plasma.The analysis of SRM 1633b showed that the ultrasound-assisted method developed is highly comparable with the microwave digestion method standardized by the United States Environmental Protection Agency (EPA-3052). The ultrasound-assisted digestion with a digestion solution of aqua regia and hydro fluoric acid (HF) resulted in recovery rates of over 81 %. One exception is arsenic which resulted in recoveries of about 60 % only; however, it could be digested with good recovery (> 90 %) using a digestion solution of 5 mL of water and 5 mL of aqua regia. The major advantage of the ultrasound-assisted digestion over microwave digestion is the high treatment rate (30 samples simultaneously with a sonication time of 18 min).

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“…road construction), glass and glass ceramics, agriculture, use as stabilising agent, use as adsorbent and for zeolite production [19,20]. In assessing these options, the levels of heavy metals and soluble salts have been extensively considered previously, whereas mercury content has barely been discussed.…”

Section: National Regulations and Target Valuesmentioning

confidence: 99%

Mercury levels in fly ash and Apc residue from municipal solid waste incineration before and after electrodialytic remediation

Dias-Ferreira¹,

Kirkelund²,

Jensen³

2016

Int. J. SDP

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Fly ash (FA) and Air Pollution Control (APC) residues collected from three municipal solid waste incinerators (MSWI) in Denmark and Greenland were treated by electrodialytic remediation at pilot scale for 8 to 10 h. The original residues and the treated material were analysed for mercury (Hg) in order to assess the influence of the electrodialytic treatment on the concentrations of this element. Mercury levels varied with the MSWI residue, ranging from 0.41 mg kg −1 in FA sample from electrostatic precipitator (ESP) to 8.38 mg kg −1 in MSWI residues from a semi-dry system with lime and activated carbon. Two distinct behaviours were observed for mercury as a result of the electrodialytic treatment. This element became enriched in the MSWI residues from the semi-dry system with activated carbon, whereas it decreased in ESP's and cyclone's FA. This work presents for the first time information about the effect of electrodialytic treatment on mercury levels and discusses the valorisation options for these MSWI residues.

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Possible applications for municipal solid waste fly ash

Cited by 396 publications

References 33 publications

The influence of electrodialytic remediation on dioxin (PCDD/PCDF) levels in fly ash and air pollution control residues

The influence of electrodialytic remediation on dioxin (PCDD/PCDF) levels in fly ash and air pollution control residues

An ultrasound-assisted digestion method for the determination of toxic element concentrations in ash samples by inductively coupled plasma optical emission spectrometry

Mercury levels in fly ash and Apc residue from municipal solid waste incineration before and after electrodialytic remediation

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