Characterization of stabilized/solidified refinery oily sludge and incinerated refinery sludge with cement using XRD, SEM and EXAFS

Karamalidis, Athanasios K.; Psycharis, Vassilis; Nicolis, Ioannis; Pavlidou, E.; Bénazeth, S.; Voudrias, Evangelos A.

doi:10.1080/10934520802171618

Cited by 13 publications

(4 citation statements)

References 27 publications

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“…The sludge samples were first dried at 103 °C to remove the moisture content (Karamalidis et al 2008), and then allowed to cool at room temperature until the weight was constant. Sample pellets of 13 mm diameter were prepared for chemical element analyses using scanning electron microscopy (SEM, Hitachi S-4700) equipped with energy-dispersive spectroscopy (EDS, EDAX Genesis).…”

Section: Sludge Characterizationmentioning

confidence: 99%

Two-stage combined treatment of acid mine drainage and municipal wastewater

Deng

Lin

2013

Water Science and Technology

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This study examined the feasibility of the combined treatment of field-collected acid mine drainages (AMD, pH = 4.2 ± 0.9, iron = 112 ± 118 mg/L, sulfate = 1,846 ± 594 mg/L) and municipal wastewater (MWW, avg. chemical oxygen demand (COD) = 234-333 mg/L) using a two-stage process. The process consisted of batch mixing of the two wastes to condition the mixture solutions, followed by anaerobic biological treatment. The mixings performed under a range of AMD/MWW ratios resulted in phosphate removal of 9 to ∼100%, the mixture pH of 6.2-7.9, and COD/sulfate concentration ratio of 0.05-5.4. The biological treatment consistently removed COD and sulfate by >80% from the mixture solutions for COD/sulfate ratios of 0.6-5.4. Alkalinity was produced in the biological treatment causing increased pH and further removal of metals from the solutions. Scanning electron microscopy of produced sludge with energy dispersion analysis suggested chemical precipitation and associated adsorption and co-precipitation as the mechanisms for metal removal (Fe: >99%, Al: ∼100%, Mn: 75 to ∼100%, Ca: 52-81%, Mg: 13-76%, and Na: 56-76%). The study showed promising results for the treatment method and denoted the potential of developing innovative technologies for combined management of the two wastes in mining regions.

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Section: Sludge Characterizationmentioning

confidence: 99%

Two-stage combined treatment of acid mine drainage and municipal wastewater

Deng

Lin

2013

Water Science and Technology

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“…Therefore, pH of elutes was decreased and stabilization and solidification of heavy metals occurred. In addition, Iron oxide (22.52%) and Silicon dioxide (18.01%) have a positive effect on anion and metal immobilization in the solidified waste samples, because they act as sorbents, which favor surface complexation and precipitation of anions and metals on their surface (Karamalidis et al, 2010). As can be observed in Table 3, the concentration of chromium (Cr) was increased in FCC powder (0.23 ppm) compared with neat ash (<0.05 ppm).…”

Section: Cernementioning

confidence: 99%

Papermaking Waste Sludge Fiber-Cement Composite Panel: Stabilization and Solidification of High Fe and Ti Content-Petrochemical Ash

Mohammadkazemi

2018

CERNE

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MOHAMMADKAZEMI, F. Papermaking waste sludge fi ber-cement composite panel: stabilization and solidifi cation of high Fe and Ti content-petrochemical ash. CERNE, v. 24, n. 4, p. 303-311, 2018. HIGHLIGHTSEffect of papermaking waste sludge, petrochemical ash, and metakaolin was investigated.Toxicity, MOR, MOE, FT, IB, WA, density, and XRD patterns were compared.Successful stabilization and solidifi cation of heavy metals occurred.

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“…Karamalidis et al [27] investigated solidification/stabilization (S/S) of refinery oily sludge and incinerated oily sludge (ash) with cement type I42.5 and II42.5 using x-ray diffraction (XRD), scanning electron microscopy (SEM) combined with energy dispersive spectroscopy (EDS) and extended x-ray absorption fine structure (EXAFS). The results showed that delayed ettringite formation (DEF) and major cement hydration reactions occurred.…”

Section: Stabilization Measuresmentioning

confidence: 99%

Prospects for development of oily sludge treatment

Jing

Luan

Chen

2011

Chem Technol Fuels Oils

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The petroleum industry is faced with the problem of developing an environmentally friendly recovery technology for oily sludge. This article examines the present status of oily sludge treatment: sludge reduction, sludge stabilization, and sludge reclamation. Finally, we discuss the prospects for development of oily sludge treatment.Oily sludge is a mixture of petroleum residues and sand generated during exploration and development of oil fields and also in petrochemical production. Considerable problems are encountered in oily sludge treatment [1]. Oily sludge contains not only a significant amount of petroleum residues but also benzene, phenol, anthracene, pyrene and other malodorous toxic substances. The accumulated huge volume of oily sludge not only takes up considerable land but also pollutes the soil, water, and air [2]. Oily sludge also contains a large number of pathogens, parasites, copper, zinc, chromium, mercury and other heavy metals, salts, polychlorinated biphenyls (PCBs), dioxins, radioactive and other persistent hazardous compounds. Oily sludge not only pollutes the environment but also is a waste of resources if not effectively treated to recover the hydrocarbons in it [3]. Therefore, oily sludge has been a major problem that plagues the petroleum and petrochemical industry [4].Crude oil extraction, oil and gas gathering and transportation, and refinery wastewater treatment will produce large amounts of oily sludge. Because different types of oily sludge are generated by the different types of operations, there is no single oily sludge treatment technology. Therefore, in this paper we review existing technologies for oily sludge treatment as a contribution to better understanding of current treatment technology and to assist in development of new treatment technology.

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Characterization of stabilized/solidified refinery oily sludge and incinerated refinery sludge with cement using XRD, SEM and EXAFS

Cited by 13 publications

References 27 publications

Two-stage combined treatment of acid mine drainage and municipal wastewater

Two-stage combined treatment of acid mine drainage and municipal wastewater

Papermaking Waste Sludge Fiber-Cement Composite Panel: Stabilization and Solidification of High Fe and Ti Content-Petrochemical Ash

Prospects for development of oily sludge treatment

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